Can a LG TV Run 120 FPS? The Complete Guide to 120Hz Gaming on LG TVs (2026)

Can a LG TV Run 120 FPS? (Quick Answer)

Yes, many LG TVs can run 120 FPS. All LG OLED TVs from the C9 (2019) onward feature HDMI 2.1 ports that support native 4K at 120Hz input. You'll need a compatible LG TV model, an Ultra High Speed HDMI 2.1 cable, and a 120fps-capable source device like a PS5, Xbox Series X, or modern gaming PC.

That said, not every LG TV on the market qualifies. You need three things working together:

1. An LG TV with a native 120Hz panel and HDMI 2.1 ports - this includes all LG OLEDs from 2019 onward, plus select QNED and NanoCell models

2. An Ultra High Speed HDMI 2.1 cable rated for 48Gbps - the cable bundled with PS5 and Xbox Series X works perfectly

3. A source device capable of 120fps output - PS5, PS5 Pro, Xbox Series X, or a PC with an RTX 30-series (or newer) GPU

Here's a quick-reference table to check compatibility at a glance:

One important caveat: many LG TVs are marketed with "TruMotion 120" branding, but that doesn't mean they accept a real 120fps input signal. TruMotion is LG's motion interpolation technology - it's not the same thing as native 120Hz. We'll clear up that confusion in the next section.

The 2026 LG lineup is especially impressive for gamers. According to LG's official press release, both the C6 and G6 support up to 4K at 165Hz VRR for PC gaming, making them future-proof well beyond the current 120Hz console standard.

If you're wondering whether does LG TV have Bluetooth for connecting gaming headsets alongside 120Hz, the answer is yes - and the 2026 models add Bluetooth ULL (Ultra Low Latency) with latency down to 1ms for controllers.

What Does 120Hz Mean on LG TVs? TruMotion vs. Real 120 FPS Explained

This is where most of the confusion lives - and it's cost people real money on TVs that don't do what they expected.

120Hz means the TV's panel physically refreshes 120 times per second. When paired with an HDMI 2.1 connection, a 120Hz panel can accept and display up to 120 unique frames from an external source every second. That's real, native 120fps gaming.

TruMotion 120 is something entirely different. It's LG's motion interpolation technology that takes a lower frame rate signal (usually 60Hz) and artificially generates intermediate frames to simulate smoother motion. The TV's processor essentially "guesses" what frames should exist between each real frame.

Is TruMotion 120 the Same as 120Hz?

No. TruMotion 120 means your TV has a native 60Hz panel. TruMotion 240 indicates a native 120Hz panel. LG essentially doubles the actual refresh rate for their TruMotion marketing number. According to RTINGS.com's analysis of fake refresh rates, LG's TruMotion simply doubles the real refresh rate - though to their credit, LG does typically list the actual native refresh rate alongside the TruMotion figure.

Here's the comparison that matters for gamers:

For gaming specifically, TruMotion is something you'll want to disable. It adds processing delay (input lag) that makes controls feel sluggish. If you've been using TruMotion thinking it's 120Hz gaming, you'll want to learn how to turn off motion smoothing on LG TV for a dramatically better gaming experience.

Now, TruMotion isn't useless. For watching movies and sports, some people appreciate the extra smoothness it adds to 24fps or 30fps content. But that's a preference for video playback - not gaming. If you're interested in film-quality viewing, check out what is filmmaker mode on LG TV, which disables motion processing to preserve the director's original cinematic intent.

The visible difference between TruMotion-smoothed 60fps and genuine native 120fps is stark. In our hands-on testing, native 120fps delivers sharper motion clarity in fast-paced games, zero interpolation artifacts, and noticeably lower input lag. TruMotion, by contrast, introduces a "soap opera effect" with occasional glitching around fast-moving objects.

One more nuance worth mentioning: some LG TVs with HDMI 2.0 can technically display 120Hz - but only at 1080p resolution, not 4K. The bandwidth limitation of HDMI 2.0 (18Gbps) can't carry a 4K @ 120Hz signal. We break that down fully in the 4K vs. 1080p section below.

Complete List of LG TVs That Support 120 FPS (2019–2026 Models)

This is the section no other guide on the internet has done properly. Pocket-lint's list covers just 14 models from 2020–2021. We've compiled every LG TV that supports native 120Hz input, spanning eight years and 50+ models.

When it comes to gaming TV reputation, is LG a good TV brand? For 120Hz gaming specifically, LG has been the clear leader since 2019 - they were the first manufacturer to ship HDMI 2.1 on consumer TVs.

If you're unsure which TV you own, you can how to find LG TV model number by checking Settings → All Settings → General → About This TV on your remote.

2026 LG Models with 120Hz Support

According to LG's March 2026 pricing announcement, the 2026 lineup includes:

As FlatpanelsHD confirmed at CES 2026, the 2026 models retain HDMI 2.1 (not 2.2) and standard Dolby Vision (not Dolby Vision 2), with support for 4K @ 120Hz on consoles and 4K @ 165Hz for PCs. The G6 comes with a 5-year panel warranty, which is a major confidence signal from LG.

For the flagship experience, explore what is the best LG TV - the G6 currently holds that title for 2026.

2025 LG Models with 120Hz Support

2024 LG Models with 120Hz Support

2023 LG Models with 120Hz Support

2022 LG Models with 120Hz Support

Port warning for 2022 B2 owners: The LG B2 has HDMI 2.1 on only ports 3 and 4. Ports 1 and 2 are limited to HDMI 2.0, meaning 4K @ 60Hz maximum on those connections.

2021 LG Models with 120Hz Support

2020 LG Models with 120Hz Support

2019 LG Models with 120Hz Support

As confirmed by multiple AVForums users, all four HDMI ports on the B9/C9 are full-bandwidth 48Gbps HDMI 2.1 and support 4K @ 120Hz with VRR.

LG TVs That Do NOT Support 120Hz Input

If your LG TV falls into any of these categories, it does not accept native 120fps input:

• LG UHD series (UQ, UP, UM, UK models) - 60Hz panels with HDMI 2.0

• LG NanoCell entry-level (NANO75 and below) - 60Hz panels

• Any LG TV manufactured before 2019 - no HDMI 2.1

• TruMotion 120 TVs without HDMI 2.1 - 60Hz panels with motion interpolation only

If you're looking at the non-OLED options specifically, which LG QNED TV is best covers which QNED models support 120Hz gaming.

For OLED specifically, what is the best LG OLED TV provides our detailed ranking of the current OLED lineup. And since OLED panels need proper care, you might want to know how to clean LG OLED TV screen to keep your display in top shape.

Hardware Requirements for 120 FPS Gaming on LG TVs

Having a compatible LG TV is only one piece of the puzzle. You need all three components in the chain working together - and a single weak link breaks the entire 120fps experience.

The Three Components You Need

Component 1: A compatible LG TV - Check the model list above. Your TV must have at least one HDMI 2.1 port with a native 120Hz panel.

Component 2: An Ultra High Speed HDMI 2.1 cable - This cable must support 48Gbps bandwidth. According to HDMI.org's specification, HDMI 2.1 was designed specifically to handle 4K @ 120Hz with HDR. The older HDMI 2.0 standard tops out at 18Gbps - enough for 4K @ 60Hz or 1080p @ 120Hz, but nowhere near sufficient for 4K @ 120Hz.

Component 3: A source device capable of 120fps output - This includes PS5, PS5 Pro, Xbox Series X, Xbox Series S (1080p/1440p @ 120Hz only - no 4K), or a PC with NVIDIA RTX 30-series or newer / AMD RX 6000-series or newer GPU.

HDMI 2.0 vs. HDMI 2.1 Bandwidth

Here's why the cable and port version matter so much:

The cable bundled with PS5 and Xbox Series X is already Ultra High Speed HDMI 2.1. You don't need to buy an aftermarket cable unless yours is too short or damaged. For third-party cables, look for the "Ultra High Speed" certification hologram on the packaging - a fake or cheap cable without this certification may not deliver stable 4K @ 120Hz.

If you need help locating the right connection point, where are HDMI ports on LG TV shows you exactly where to find them on different LG models.

Compatible Source Devices

• PS5 / PS5 Pro - HDMI 2.1 output, 4K @ 120Hz capable. The PS5 Pro adds more native 120fps titles with PSSR upscaling.

• Xbox Series X - HDMI 2.1 output, 4K @ 120Hz with Dolby Vision gaming support

• Xbox Series S - HDMI 2.1 output, but limited to 1080p/1440p @ 120Hz (no 4K @ 120Hz)

• PC (NVIDIA RTX 30-series+) - HDMI 2.1 output. RTX 40-series and 50-series also supported.

• PC (AMD RX 6000-series+) - HDMI 2.1 output

• GeForce NOW Ultimate - 4K @ 120Hz cloud gaming via native LG TV app (2025/2026 models)

Important for PC gamers: GPUs older than RTX 30-series (NVIDIA) or RX 6000-series (AMD) have HDMI 2.0 outputs. That means 4K is limited to 60Hz over HDMI. If you're in this situation, a Club3D DisplayPort 1.4 to HDMI 2.1 active adapter is an option - but it won't support HDR or G-Sync at 4K @ 120Hz.

For audio during gaming, you'll want to know how to connect Bluetooth headphones to LG TV or explore how to connect wireless headphones to LG TV without Bluetooth for lower-latency options.

How to Enable 120 FPS on Your LG TV: Step-by-Step Setup Guide

This is the part most people search for - and the part most existing guides get wrong by being either too generic or hopelessly outdated. These steps are specific to LG TVs, verified on models from the C9 through the C6, and cover all three major gaming platforms.

Step 1 - Verify Your TV Supports 120Hz

Check the model compatibility table in Section 3 above. If your TV is any LG OLED from C9 (2019) onward, or a qualifying QNED/NanoCell model, you're good. Not sure which model you have? The model number is printed on a sticker on the back of the TV, or you can find it in Settings → All Settings → General → About This TV.

Step 2 - Connect to the Right HDMI Port with the Right Cable

Plug your console or PC into an HDMI 2.1 port using an Ultra High Speed HDMI cable. On most LG OLEDs (C-series, G-series from 2020 onward), all four HDMI ports are HDMI 2.1. On the B2 and some QNED models, only ports 3 and 4 support HDMI 2.1.

Need to switch inputs? Here's how to change HDMI on LG TV or how to change input on LG TV to make sure you're on the right port.

Step 3 - Enable HDMI Ultra HD Deep Color (or HDMI Signal Format)

This is the step most people miss, and the single most common reason 120Hz doesn't work.

Navigate to: All Settings → General → Devices → HDMI Settings → HDMI Ultra HD Deep Color → Turn On for the HDMI port your device is connected to.

On 2023 and newer models running updated webOS, this setting may instead be labeled HDMI Signal Format - set it to 4K.

Without this enabled, your TV will default to HDMI 2.0 compatibility mode even on a 2.1 port, locking you to 4K @ 60Hz.

Step 4 - Enable Game Mode / Game Optimizer

Navigate to: All Settings → Picture → Picture Mode → Game Optimizer

On 2021 and newer LG TVs, Game Optimizer is accessible directly from the Picture Mode selector. Set Instant Game Response to On - this enables ALLM (Auto Low Latency Mode) so the TV automatically switches to Game Mode when it detects a gaming signal.

For detailed instructions, check how to turn on game mode on LG TV.

Step 5 - Configure Your PS5

On your PS5: Settings → Screen and Video → Video Output → Enable 120 Hz Output → Automatic

Verify it's working: Go to the top of the Screen and Video menu and select Video Output Information. It should display your current resolution and refresh rate. If it shows 120Hz, you're set.

If you're also interested in wireless options, here's how to connect PS5 to LG TV wirelessly - though wired HDMI is required for 120Hz gaming.

Step 6 - Configure Your Xbox Series X

On your Xbox: Settings → General → TV & Display Options → Refresh Rate → 120Hz

Then check: Settings → General → TV & Display Options → 4K TV Details. Every supported feature should show a green checkmark. If 120Hz shows as unsupported, revisit Steps 2 and 3.

For the initial connection, how to connect Xbox to LG TV walks through the complete process.

Step 7 - Configure Your PC

Open NVIDIA Control Panel → Change Resolution → Set to 3840 × 2160 at 120Hz (or 144Hz/165Hz on 2024+ models).

For AMD users: AMD Adrenalin Software → Display → select the LG TV → set custom resolution to 3840 × 2160 at 120Hz.

If you're connecting a laptop, how to hook up Windows 11 laptop to LG TV covers the full process including display settings.

Step 8 - Verify 120Hz Is Actually Active

Here's a trick most guides don't mention. LG TVs have a hidden diagnostics screen:

Navigate to All Settings → Channels → highlight Channel Tuning → rapidly press "1" on your remote. A Host Diagnostics window appears showing the actual resolution and refresh rate the TV is receiving via HDMI.

If it says 3840 × 2160 @ 120Hz (or 119.88Hz - that's normal), you've confirmed real 120fps is running. If it shows 60Hz, something in your chain is misconfigured.

If 120Hz doesn't appear despite following all steps, your firmware may need updating. Learn how to update LG TV software or how to update firmware on LG TV for the latest patches.

LG TV Game Optimizer and Best Gaming Settings for 120 FPS

Enabling 120Hz is the first step. Optimizing your LG TV's gaming settings is what separates a good experience from a great one.

LG's Game Optimizer (available on 2021+ models) is a centralized gaming dashboard that gives you quick access to every gaming-relevant setting. You'll find it in the Picture Mode selector - just switch to Game Optimizer mode.

Here are the recommended settings for 120Hz gaming:

The Prevent Input Delay setting is one most people get wrong. When set to BOOST, it minimizes processing delay for 60Hz sources. But at 120Hz, BOOST can introduce judder - set it to Standard for the smoothest 120fps experience. This tip comes from the AVS Forum calibration community and made a noticeable difference in our testing.

For those dealing with input lag concerns, how to reduce input lag on LG TV provides deeper optimization strategies.

Dolby Vision at 120Hz is available on LG OLEDs from 2021 onward (C1/G1 received it via firmware update). Xbox Series X supports Dolby Vision gaming, but PS5/PS5 Pro do not - Sony uses HDR10 instead. This is one of the few areas where Xbox has a clear technical edge over PlayStation on LG TVs.

One common misconception: Game Mode doesn't ruin picture quality. It primarily reduces input lag by disabling post-processing like noise reduction and TruMotion. The actual color accuracy and contrast remain excellent, especially on LG OLEDs.

If you're stuck in the wrong picture mode, how to turn off HDR on LG TV and how to turn off filmmaker mode on LG TV will get you back on track quickly.

LG TV 120Hz Not Working? Common Problems and Quick Fixes

You've followed all the steps but 120Hz still isn't showing up. Don't panic - we've encountered every one of these issues during multi-model testing, and almost all of them have a simple fix.

Work through these in order - they're arranged from most common to least common:

Issue 1 - HDMI Ultra HD Deep Color Not Enabled

This accounts for roughly half of all "120Hz not working" complaints. The TV defaults to HDMI 2.0 compatibility mode until you manually enable full bandwidth.

Fix: All Settings → General → Devices → HDMI Settings → HDMI Ultra HD Deep Color → Enable for the active port. On 2023+ models, set HDMI Signal Format to "4K."

Issue 2 - Using an HDMI 2.0 Cable

The cable that came with your older device, or a cheap third-party cable, may be HDMI 2.0 (18Gbps). It physically looks identical to an HDMI 2.1 cable - you can't tell by appearance alone.

Fix: Replace with an Ultra High Speed HDMI 2.1 cable (48Gbps). Look for the certification hologram. The cables included with PS5 and Xbox Series X are already HDMI 2.1.

Issue 3 - Connected to the Wrong HDMI Port

Some LG models have HDMI 2.1 on only certain ports. The B2, for example, has HDMI 2.1 on ports 3 and 4 only. If you're seeing no signal or only 60Hz on a port that should work, you might be in the wrong one.

Fix: Move your cable to HDMI port 3 or 4. Check your model's specifications in our table above. If your TV says "No Signal" entirely, why does my LG TV say no signal has additional diagnostics.

Issue 4 - Source Device Not Set to 120Hz

PS5 and Xbox don't always default to 120Hz output. If the console detects that the TV isn't reporting 120Hz capability (often because of Issue 1), it stays at 60Hz.

Fix: On PS5, go to Settings → Screen and Video → Enable 120 Hz Output → Automatic. On Xbox, Settings → General → TV & Display Options → Refresh Rate → 120Hz.

Issue 5 - TV Firmware Is Outdated

Some features - especially Dolby Vision at 120Hz on 2020/2021 models - were added through firmware updates after launch. If you've never updated your TV's firmware, you may be missing critical functionality.

Fix: Settings → All Settings → General (or Support) → About This TV → Check for Updates. If an update is available, install it and restart.

Issue 6 - Game Isn't Running in 120fps Mode

Many games default to "Quality Mode" (30fps or 60fps with enhanced visuals) rather than "Performance Mode" (120fps). Even with 120Hz enabled on both TV and console, the game itself needs to support and be set to 120fps.

Fix: Check in-game settings for a Performance Mode, 120fps mode, or High Frame Rate option. Not all games support 120fps.

Issue 7 - Picture Mode Doesn't Support 120Hz

Some picture modes (Cinema, Filmmaker Mode) may not accept a 120Hz input signal on certain firmware versions. The TV may silently drop to 60Hz.

Fix: Switch to Game Optimizer or Game Mode. This is the intended picture mode for 120Hz gaming.

Issue 8 - GPU Only Has HDMI 2.0 Output

GPUs before NVIDIA's RTX 30-series and AMD's RX 6000-series have HDMI 2.0 outputs. Even with a brand new LG OLED, these GPUs physically cannot output 4K @ 120Hz over HDMI.

Fix: Use a Club3D DisplayPort 1.4 to HDMI 2.1 active adapter, or game at 1080p @ 120Hz instead. The Arch Linux forums are full of users who spent days troubleshooting before discovering their GPU simply didn't have HDMI 2.1.

If none of these fixes work, try a full restart: how to reboot LG TV explains the process. As a last resort, how to factory reset LG TV or how to reset LG TV can clear stubborn configuration issues - just remember to re-enter your settings afterward.

If your screen looks wrong at 120Hz, how to fix LG TV screen problems covers additional display-specific troubleshooting. And for users whose TV issues go beyond 120Hz, check why is my LG TV not turning on or why does my LG TV keep turning off for power-related issues.

4K vs. 1080p at 120Hz on LG TVs: What You Need to Know

Here's a question that causes genuine confusion: "My LG TV does 120Hz at 1080p, but not at 4K. Is it broken?"

Probably not. It's a bandwidth issue.

Why Some TVs Can Do 1080p @ 120Hz But Not 4K @ 120Hz

4K has four times the pixel count of 1080p - 8.3 million pixels versus 2.1 million. Pushing all those pixels at 120Hz requires dramatically more bandwidth.

If your LG TV only has HDMI 2.0 ports (or you're connected to an HDMI 2.0 port on a mixed-port model), the maximum you can push at 120Hz is 1080p. Your TV isn't broken - the pipe simply isn't wide enough for all that 4K data at high frame rates.

The Chroma Subsampling Trap

Windows PCs can sometimes force 4K @ 120Hz through an HDMI 2.0 connection using 4:2:0 chroma subsampling. This compresses color data to fit within the 18Gbps limit. It technically "works" - the resolution reports as 4K and the refresh rate says 120Hz. But text looks noticeably soft, color accuracy drops, and it's not true full-quality 4K. It's a compromise, not a solution.

Which Should You Choose?

For users stuck with HDMI 2.0 (older GPU, B2 on ports 1–2, etc.), you face a genuine trade-off:

• 1080p @ 120Hz - Smoother motion, faster response. Better for competitive multiplayer games where reaction time matters (Call of Duty, Fortnite, Rocket League).

• 4K @ 60Hz - Sharper, more detailed image. Better for cinematic single-player games where you want to soak in the visuals (Horizon, Final Fantasy, Red Dead Redemption).

Neither answer is wrong - it depends on what you're playing and what you prioritize.

Xbox Series S note: The Series S supports 120Hz at 1080p and 1440p only. It cannot output 4K @ 120Hz regardless of your TV's capability. That's a console hardware limitation, not a TV issue.

If your picture looks different at various settings, how to adjust brightness on LG TV helps dial in the right balance. And if HDR is making things appear too dark at 120Hz, why is my LG TV so dark addresses that common complaint.

120 FPS Gaming on LG TVs With PS5, Xbox Series X, and PC

Each gaming platform handles 120Hz differently on LG TVs. Here's what you need to know for each.

PS5 and PS5 Pro

The PS5 supports 4K @ 120Hz with HDR10 on LG TVs with HDMI 2.1. The PS5 Pro expands this with more titles running at native 120fps thanks to PSSR (PlayStation Spectral Super Resolution) upscaling. According to Sony's official PS5 Pro page, the console supports both 60Hz and 120Hz displays with enhanced visuals.

Key limitations:

• No Dolby Vision gaming - PS5/PS5 Pro use HDR10 exclusively

• VRR supported - but has had reported stutter issues in some titles

• 120Hz must be manually enabled in Settings → Screen and Video → Enable 120 Hz Output → Automatic

• Growing library of 120fps titles - Ratchet & Clank: Rift Apart, Call of Duty, Fortnite, and dozens more

Xbox Series X

Xbox Series X is arguably the most feature-complete 120Hz gaming device for LG TVs:

• 4K @ 120Hz with HDR10 and Dolby Vision gaming - DV gaming is supported on LG OLEDs from 2021 onward

• VRR supported with generally smooth behavior

• FPS Boost retrofits 120fps onto many older Xbox One titles

• "4K TV Details" screen provides instant feature verification - every feature should show green checkmarks

The PS5's lack of Dolby Vision is a real loss on LG OLEDs. Xbox's Dolby Vision gaming provides noticeably more dynamic HDR, especially in dark scenes.

Xbox Series S

The Series S handles 120Hz at 1080p and 1440p. It does not output 4K at any frame rate above 60Hz. For LG TV owners, this means you're choosing between 1440p @ 120Hz (sharp and smooth) or 4K @ 60Hz (maximum detail). On a 55-inch or larger TV, the resolution difference between 1440p and 4K is visible from normal viewing distance.

PC Gaming

PC gaming on LG TVs offers the most flexibility:

• G-Sync Compatible - All LG OLEDs from C9 onward are certified G-Sync Compatible

• Exceeds 120Hz - 2024+ LG models support 144Hz (C4) or 165Hz (G5, C5, G6, C6) for PCs with capable GPUs

• Full RGB 4:4:4 color at 4K @ 120Hz over HDMI 2.1

• Requires HDMI 2.1 GPU - NVIDIA RTX 30-series+ or AMD RX 6000-series+

Configure through NVIDIA Control Panel (Change Resolution → 3840 × 2160 → 120Hz) or AMD Adrenalin Software.

Cloud Gaming: GeForce NOW at 4K @ 120Hz

LG TVs are the first to support 4K @ 120Hz cloud gaming streaming through the native GeForce NOW app. According to PC Guide's coverage, the service runs on NVIDIA's RTX 5080 servers and requires a GeForce NOW Ultimate subscription ($19.99/month). This feature is available on 2025 and 2026 LG OLED models - no additional hardware required.

For sharing your screen from other devices, how to screen mirror iPhone to LG TV and how to connect phone to LG TV cover mobile connectivity. You can also how to control LG TV with phone as a secondary remote during gaming, and how to AirPlay to LG TV for Apple device streaming.

VRR, G-Sync, and FreeSync at 120Hz on LG TVs

Variable Refresh Rate (VRR) is one of the most valuable features for 120Hz gaming - and one of the most misunderstood. Here's the practical guide to when to enable it and what issues to watch for on LG TVs.

What VRR Does

When a game runs at a perfectly locked 120fps, VRR isn't strictly necessary. But games rarely maintain a perfect frame rate. When fps dips to 95, then 110, then back to 118, the TV's fixed 120Hz refresh rate falls out of sync with the source - causing screen tearing. VRR synchronizes the TV's refresh rate with whatever the source device is outputting, eliminating tearing entirely.

LG's VRR Support

LG OLEDs from C9 onward support three VRR standards:

• HDMI Forum VRR - The base standard built into HDMI 2.1

• NVIDIA G-Sync Compatible - Certified on all LG OLEDs from C9 onward

• AMD FreeSync Premium - Supported on most LG OLEDs from CX onward

The VRR range on LG OLEDs typically covers 20–120Hz (or 20–165Hz on G5/G6/C5/C6). Below the minimum range, Low Frame Rate Compensation (LFC) kicks in - the TV doubles frames to keep the refresh rate within the supported range.

Known VRR Issues on LG OLEDs

This is where honesty matters. LG OLEDs from the CX through C2 have a well-documented VRR gamma flicker issue. During VRR operation, when the frame rate fluctuates significantly, you may notice subtle brightness flickering - especially in dark scenes.

The technical cause: LG OLED panels have their gamma curve optimized for 120Hz specifically. When VRR drops the refresh rate below 120Hz to match the source, the gamma curve doesn't adjust accordingly, causing subpixels to become slightly overcharged. This manifests as a brief brightness flicker.

The good news is that LG has progressively improved this with newer models. The C3 showed significant improvement, and the C4/C5/G5 reduced the issue further. The 2026 C6 and G6 appear to handle VRR more gracefully still, though final testing is ongoing.

When to Enable and Disable VRR

• Enable VRR for games with variable or uncapped frame rates - open-world games, most single-player titles, any game that might dip below 120fps

• Consider disabling VRR for games locked at a solid 60fps on a 120Hz display - the "60fps in 120Hz container" can cause mild judder on some models, and VRR isn't needed when the frame rate is stable

• Definitely enable VRR for PC gaming where frame rates fluctuate more than console gaming

If you're noticing screen flashing during gameplay, why is my LG TV flashing might be VRR-related - especially if it only happens in games with VRR active. Power cycling issues can also occur; see why does my LG TV keep turning on and off if the problem persists outside of gaming.

Best LG TVs for 120 FPS Gaming in 2026

With all the technical details out of the way, here are our concrete recommendations segmented by budget. All prices reflect March 2026 availability.

Best Overall: LG C6 OLED (2026) - from $1,399

The C6 is the sweet spot. Four HDMI 2.1 ports, 4K @ 165Hz VRR, Game Optimizer, the Alpha 11 Gen 3 processor, and Dolby Vision/Atmos support. The 77" and 83" C6H variants get the same Primary RGB Tandem 2.0 panel as the G6, making them substantially brighter than the smaller C6 sizes.

If you want to save, the outgoing LG C5 is hitting deep discounts - the 65" C5 has dropped to nearly 50% off its launch price according to Tom's Guide, and it was their top TV pick for 2025.

Best Premium: LG G6 OLED (2026) - from $2,499

The G6 is LG's statement piece. The 2nd-generation Tandem WOLED panel delivers up to 20% higher peak brightness than the G5, the Reflection Free Premium coating cuts glare dramatically, and the 5-year panel warranty shows LG's confidence in longevity. Up to 4K @ 165Hz for PC gamers.

If you're curious about the warranty details, how long is LG TV warranty explains coverage periods across the lineup.

Best Budget OLED: LG B5 OLED (2025) - from $599 (sale)

The B5 is a remarkable value proposition. Four HDMI 2.1 ports, 4K @ 120Hz, VRR, FreeSync - all the gaming essentials at a price that would have been unthinkable for an OLED just two years ago. The B6 (2026) should arrive at similar pricing once launched.

Best Non-OLED Value: LG QNED85/86 (2025)

For gamers who want 120Hz at larger sizes (up to 100 inches) without OLED pricing, the QNED line with Mini LED backlighting delivers 120Hz panels with HDMI 2.1. You'll sacrifice the perfect blacks and infinite contrast of OLED, but you gain more size per dollar.

Quick Comparison

If you're weighing LG against the competition, is LG TV better than Samsung compares the two brands across gaming, picture quality, and value. For longevity concerns, how long does an LG TV last addresses OLED lifespan and burn-in realistically. And to verify LG's build quality, is LG a good TV and where LG TV made provide brand and manufacturing context. If you're curious about what else your new TV can do beyond gaming, is LG TV a smart TV covers webOS features and app availability.

How to Update LG TV Firmware for 120Hz Gaming Features

Firmware updates aren't just maintenance - on LG TVs, they've historically been the difference between having 120Hz features and not having them.

Why Firmware Matters for 120Hz

LG has a track record of enabling gaming features through post-launch firmware. The most notable example: Dolby Vision at 120Hz was added to the C1 and G1 via firmware version 03.15.27 in June 2021. That feature wasn't available at launch. Later in October 2021, 14 additional LG models from 2020 and 2021 received Dolby Vision @ 120Hz through staggered firmware updates, as reported by Engadget and later confirmed by Pocket-lint.

The B9 and C9 from 2019 also required firmware updates for stable 4K @ 120Hz after the PS5 and Xbox Series X launched in November 2020 - those updates took months to roll out, leaving early adopters frustrated.

How to Check Your Current Firmware

Navigate to: Settings → All Settings → General (or Support) → About This TV

This screen shows your current firmware version and last update date.

How to Update (Automatic OTA)

Settings → All Settings → General → About This TV → Check for Updates

Your TV will download and install the update automatically if one is available. This requires an active internet connection. If you need help getting online first, how to connect LG TV to WiFi walks through the setup.

How to Update (Manual USB)

If OTA fails or your TV isn't connected to the internet:

1. Visit LG's support site on your computer

2. Search for your exact model number

3. Download the latest firmware file

4. Copy it to a USB drive (root directory, not inside a folder)

5. Insert the USB into your TV

6. The TV should detect and prompt you to install

Warning: Do not power off your TV during a firmware update. Interrupting the process can brick the TV.

For general maintenance alongside firmware updates, how to clear cache on LG TV can improve performance. And if your TV feels sluggish in menus, why is my LG TV so slow may point to an outdated firmware as the culprit.

Frequently Asked Questions: LG TV 120 FPS

Can my LG TV do 120Hz without HDMI 2.1?

Yes, in a limited way. Some LG TVs can display 120Hz at 1080p resolution through HDMI 2.0 ports, because 1080p @ 120Hz fits within HDMI 2.0's 18Gbps bandwidth. For 4K at 120Hz, though, you absolutely need HDMI 2.1 and its 48Gbps bandwidth capacity. Check your specific TV model's port specifications before assuming 4K @ 120Hz support.

Do all HDMI ports on my LG TV support 120Hz?

Not always. Most LG OLED TVs from the C-series and G-series (2020 onward) have HDMI 2.1 on all four ports. However, the LG B2 and certain QNED models have HDMI 2.1 on only ports 3 and 4, with ports 1 and 2 limited to HDMI 2.0. Always check your model's specifications - the quick way is to look up your model in our compatibility table above.

Does 120Hz cause OLED burn-in faster?

No. Running your LG OLED at 120Hz does not meaningfully increase burn-in risk compared to 60Hz. Burn-in is caused by static image elements - HUD elements, channel logos, score overlays - displayed for extended periods. The refresh rate itself is not a factor. LG's built-in pixel refresher and screen-shift features help mitigate burn-in during normal gaming use.

Can I watch Netflix at 120fps on my LG TV?

No. Streaming services like Netflix, Disney+, and YouTube currently max out at 60fps for content delivery. Most movies are shot at 24fps, and most TV shows at 30fps. The 120Hz capability of your LG TV is primarily beneficial for gaming, where consoles and PCs can output native 120fps in supported titles. For everything else, TruMotion can optionally smooth lower-framerate content (though many people prefer it off).

Is the HDMI cable that came with my PS5 good enough for 120Hz?

Yes. Both the PS5 and Xbox Series X include Ultra High Speed HDMI 2.1 cables rated for 48Gbps in the box. These fully support 4K @ 120Hz with HDR. You only need a replacement if the included cable is too short for your setup or has been damaged.

What's the difference between 120Hz and 144Hz on LG TVs?

Select 2024–2026 LG models (G4, C5, G5, C6, G6) support refresh rates above 120Hz - up to 144Hz or 165Hz - for PC gaming. Game consoles like PS5 and Xbox Series X still max out at 120Hz. The higher refresh rates benefit PC gamers with powerful GPUs who can push beyond 120fps at 4K.

Does LG TV have Chromecast?

Yes. LG smart TVs running webOS support Google Cast (Chromecast built-in), allowing you to cast content from your phone or computer to your LG TV. This is separate from 120Hz gaming but useful for streaming content. To learn more about your TV's casting capabilities, check does LG TV have Chromecast. You can also explore does LG TV have AirPlay for Apple ecosystem support, or learn how to enable Bluetooth on LG TV for wireless accessory pairing.

For questions about the operating system, is LG TV Android clarifies that LG TVs run webOS, not Android TV. And yes, can I use my phone as a TV remote LG - the LG ThinQ app turns your smartphone into a fully functional remote control.

Your Next Steps for 120 FPS Gaming on LG TVs

The short answer to "can a LG TV run 120 FPS" is yes - and it has been since 2019. The experience you get depends on your specific model, the cable connecting your devices, your source hardware, and whether you've configured everything correctly.

If you're still working through the process, here's the path: confirm your model supports 120Hz (Section 3), verify you have the right hardware chain in place (Section 4), follow the step-by-step setup (Section 5), and troubleshoot any issues (Section 7). If you're shopping for a new TV, our 2026 recommendations (Section 11) point you to the right model for your budget.

This guide is updated quarterly as LG releases new models, firmware updates, and pricing changes. Bookmark it for future reference - the 2026 B6 and W6 models haven't received pricing yet, and we'll add them as soon as LG announces availability.

For getting the most out of your LG TV beyond gaming, you might want to how to add apps to LG smart TV - including gaming-related apps like GeForce NOW and Amazon Luna. And for the complete setup experience, how to download apps on LG TV walks through the webOS Content Store process.

Whether you're a PS5 gamer chasing smoother competitive play, an Xbox owner enjoying Dolby Vision at 120Hz, or a PC enthusiast pushing 165Hz on the latest G6, LG's OLED lineup remains the gold standard for high-frame-rate gaming on a big screen. The technology has matured considerably since those first C9 models in 2019 - and it just keeps getting better.