How input lag on a TV compares to a monitor for gaming

Part of our guide on monitor specs for ps5 gaming

The difference between a TV and monitor for input lag isn't the panel technology — it's the image processing you can't see running between the console and the screen.

The differences at a glance

Input lag is the delay between pressing a button and seeing the result on screen. A gaming monitor processes each frame in 1-5 ms because it skips the motion smoothing, upscaling, and color correction that TVs apply by default. TVs in Game Mode deliver 10-40 ms, which works for most games but costs you frames in competitive shooters and fighting games.

The gap widens dramatically when Game Mode is off. A TV running all its processing can add 60-120 ms or more, turning every input into a sluggish, frustrating delay. Monitors don't have a Game Mode because they ship without the processing in the first place.

Modern high-refresh TVs close the gap slightly. A 120 Hz TV in Game Mode can hit 10-15 ms, but a 144 Hz or 240 Hz monitor still lands under 5 ms at the same refresh rate. The difference matters most in games where reaction time decides the outcome.

What input lag means on a TV and a monitor

Input lag is the time between the console or PC sending a frame and the display showing it. It includes every step: the GPU rendering the frame, the cable transmitting it, and the screen processing and lighting the pixels. Monitors minimize processing to keep total lag under 5 ms. TVs add motion interpolation, noise reduction, and upscaling by default, which can pile on 50-100 ms. The other half of this decision is tv input lag reduction tips.

Game Mode disables most of that processing. A TV in Game Mode skips motion smoothing, edge enhancement, and dynamic contrast, cutting lag to 10-40 ms depending on the panel and chipset. The picture looks flatter and less vivid because the processing that makes movies look cinematic also introduces delay.

Response time is separate. Response time measures how fast a pixel changes color, usually 1-5 ms gray-to-gray. Input lag measures the full journey from button press to screen update. A monitor can have slow response time but low input lag, or vice versa. Input lag is what you feel when you press a button.

Why TVs have more input lag than monitors

TVs process every frame to make movies and broadcast TV look better. Motion smoothing inserts fake frames between real ones to reduce judder, adding 20-40 ms. Upscaling a 1080p signal to 4K adds another 10-20 ms. Noise reduction, dynamic contrast, and local dimming adjustments each contribute 5-15 ms. A TV running all features can exceed 100 ms total lag. The other half of this decision is does game mode on tv actually help.

Monitors skip those features. A gaming monitor receives a frame, scales it if needed, and lights the pixels. No interpolation, no enhancement, no delay. The image is less polished but the lag stays under 5 ms even at 1440p or 4K.

Panel type matters less than you'd expect. OLED TVs and monitors both have near-instant pixel response, but OLED TVs still add processing lag unless Game Mode is on. A cheap VA panel monitor with no processing beats an expensive OLED TV with processing enabled. The chipset and firmware decide lag more than the panel.

How input lag affects your gameplay

Competitive shooters and fighting games punish lag above 15 ms. In Call of Duty or Counter-Strike, 20-30 ms lag means your shot registers one or two frames late. In a firefight, the other player sees and shoots you first. Fighting games are worse: a 16 ms delay in Street Fighter 6 or Tekken 8 makes frame-perfect combos unreliable. You miss the input window and drop the combo. If that sounds like your situation, read up on ps5 tv input lag comparison next.

Story-driven and turn-based games tolerate 30-40 ms. In Elden Ring, The Witcher 3, or Baldur's Gate 3, a few extra milliseconds don't break immersion or cost you the fight. Timing windows are wide enough to absorb the lag. You'll notice it if you switch from a monitor, but it won't ruin the experience.

Racing games and sports sims fall in between. Gran Turismo 7 and F1 24 reward precise timing, but the margin is wider than a twitch shooter. 15-25 ms is playable, though under 10 ms feels sharper when you're hitting apexes or defending a corner in FIFA or Madden. Casual players won't notice; competitive sim racers will.

The threshold where lag becomes annoying sits around 40-50 ms for most people. Below that, only competitive players or those switching from a low-lag monitor complain. Above 50 ms, even casual players report sluggish controls and missed inputs. Above 80 ms, the game feels broken. Before you commit to anything, it is worth looking at burn in on oled gaming monitors.

How to test input lag on a TV or monitor

The simplest test uses a high-speed camera. Set your phone or camera to 240 fps slow-motion mode. Film the controller and screen together while pressing a button that triggers an on-screen action, like firing a gun or jumping. Count the frames between the controller button or LED lighting up and the screen showing the action. Divide frame count by 240 and multiply by 1000 to get milliseconds.

A lag tester gives precise numbers. Devices like the Leo Bodnar Input Lag Tester or Time Sleuth measure the delay by flashing a signal and timing the screen's response. They cost $100-200 and measure down to 0.1 ms accuracy. Plug it into HDMI, run the test, and read the result. It's how reviewers benchmark displays.

Software tools work for PC monitors. Programs like NVIDIA Reflex Analyzer or Blur Busters UFO Test measure system latency from click to pixel. They require specific hardware (a compatible mouse or high-speed camera) but give accurate results for your full gaming setup. Console players need the camera method or a hardware tester.

Compare your screen to a known reference. Set up a monitor with confirmed low lag beside your TV. Clone the output so both show the same frame. Take a photo with a fast shutter speed or film in slow motion while an on-screen timer counts milliseconds. The difference in displayed time is your TV's added lag.

• Phone slow-motion method: film controller and screen at 240 fps, count frames between press and response, divide by 240 and multiply by 1000
• Hardware tester: Leo Bodnar or Time Sleuth plugs into HDMI, measures lag to 0.1 ms, costs $100-200
• PC software: NVIDIA Reflex Analyzer or Blur Busters UFO Test for system latency with compatible gear
• Side-by-side comparison: clone output to monitor and TV, photograph on-screen timer, subtract displayed times

Settings that reduce input lag on both screens

Enable Game Mode on your TV first. It's usually buried in picture settings under a name like Game Mode, PC Mode, or Low Latency Mode. Some brands auto-detect a console and switch modes, but most don't. Enabling it cuts lag by 30-60 ms instantly. The trade-off is a flatter, less vibrant picture because motion smoothing and enhancement are off.

Turn off motion smoothing everywhere. It's labeled TruMotion (LG), MotionFlow (Sony), Auto Motion Plus (Samsung), or similar. It inserts fake frames to smooth motion, adding 20-40 ms. Game Mode disables it on TVs, but PC monitor gaming modes sometimes leave it on. Hunt through every menu and turn it off.

Use the native resolution your screen supports. Forcing a non-native resolution makes the display scale the image, adding 5-10 ms. Set your console or PC to output the panel's native resolution: 1080p, 1440p, or 4K. If your TV is 4K, output 4K. If your monitor is 1440p, match it.

Disable HDR if your TV processes it slowly. Some older or budget 4K TVs add 10-20 ms when HDR is active because the tone-mapping happens in real time. Test with HDR on and off using the slow-motion camera method. If HDR adds noticeable lag, turn it off in console display settings. Modern high-end TVs handle HDR without lag penalty.

Switch to Performance mode on consoles. PlayStation 5 and Xbox Series X offer Performance and Quality modes in many games. Performance mode targets 60 or 120 fps, which reduces lag by delivering frames faster. Quality mode locks at 30 fps with higher resolution, doubling the time between frames and making lag more noticeable.

When using a TV as a PC monitor adds lag

A TV as a PC monitor adds lag only if Game Mode is off or Windows forces non-native scaling. With Game Mode enabled and the PC outputting the TV's native resolution, input lag matches what a console sees: 10-40 ms depending on the model. The TV doesn't know or care whether the signal comes from a PC or a PlayStation.

Desktop scaling introduces delay. If Windows scales the desktop to 150% or 200% because 4K text is tiny, the TV or GPU has to process every frame before display. That can add 5-15 ms. Run at 100% scaling and native resolution, or use a monitor-sized TV (32-43 inches at 4K) where 100% scaling stays readable.

Some TVs label PC input differently. Plugging into an input named PC or connecting a PC may auto-enable a low-latency mode separate from Game Mode. Check your TV's manual. If it has a dedicated PC mode, use that input and verify lag with a test. A few models apply chroma subsampling (4:2:0 instead of 4:4:4) in standard modes, which doesn't add lag but makes text fuzzy.

Wireless mouse and keyboard add their own lag. A Bluetooth mouse introduces 5-10 ms on top of display lag. A 2.4 GHz dongle cuts that to 1-3 ms. For competitive play on a TV-as-monitor setup, use a wired or low-latency wireless mouse and wired mechanical keyboard to avoid compounding delays.

Questions people still ask

I've tested dozens of TVs and monitors with a 240 fps camera, and Game Mode makes a bigger difference than refresh rate or panel type every time.