144Hz vs 240Hz — See the Difference Side by Side
The same disc, moving at the same speed, at 144 FPS and at 240 FPS — plus your own display's full rate for reference. No charts of other people's opinions: your eyes, your screen.
The meter starts automatically — no button needed. Keep this tab in front for a clean reading.
Your system (read locally, never uploaded)
Benchmark history
144Hz vs 240Hz: what actually changes
The upgrade question every 144Hz owner eventually asks. The frame-time saving is 2.8 milliseconds — real, but the smallest step on this page's ladder — and it only exists if your system can actually produce 240 frames per second in your games, which at higher resolutions many cannot. The lanes above are the fairest test available without buying the monitor: if you cannot see a difference here on a borrowed high-refresh screen, you will not see one at home either. Spend first on reaching a stable 144 in more games; buy 240 when your frame rates already live there.
| Rate | Frame time | Frames per second |
|---|---|---|
| 144 FPS | 6.94 ms | 144 |
| 240 FPS | 4.17 ms | 240 |
| Difference | 2.78 ms saved per frame | 96 more frames |
One rule governs everything on this page: a display can only show as many frames as it refreshes. If your monitor runs at 144Hz, the 240 FPS lane above is being capped to 144 by your screen itself and the two will look the same — run the refresh rate test to see your true rate before concluding anything about your eyes. And if you are deciding where upgrade money goes, pair this page with the FPS calculator: the monitor only helps if your hardware can feed it, in the games you actually play.
How to compare honestly
- Track the disc with your eyes rather than staring at the screen — motion clarity differences live in tracked movement.
- Use the Fast lane speed: differences widen as speed rises, which mirrors fast camera movement in games.
- Compare the top pair, then compare each against the Your Rate lane to place your own display on the ladder.
- Re-run on any other display you own — a phone with a high-refresh screen often shows the gap a desktop monitor cannot.
Frequently asked questions
Can you see the difference between 144 and 240 FPS?
On a display that can show both rates, most people can — the lanes on this page run both side by side so you can judge with your own eyes. Remember the ceiling rule: on a 144Hz screen the 240 lane is capped and will look identical, which is a property of your monitor, not of your eyesight.
How much frame time do I save going from 144 to 240 FPS?
Each frame lasts 6.9 ms at 144 FPS and 4.2 ms at 240 FPS — a saving of 2.8 ms per frame. Smaller savings at higher rates are why each step up the ladder feels less dramatic than the last.
Do I need a new monitor for 240 FPS?
Yes, if yours tops out below 240Hz: a display can never show more frames than it refreshes. Check what yours is actually running at with the refresh rate test before spending anything — a surprising number of high-refresh monitors are still set to 60Hz.
Does higher FPS reduce input lag?
Yes, modestly: a new frame is the earliest moment your input can become visible, so shorter frames shrink the average wait. It is one component of total lag alongside device polling, rendering and display processing.