What actually changes

Refresh rate is how many times per second the screen redraws. At 144Hz a new image can arrive every 6.9 ms; at 240Hz, every 4.2 ms. That is a gap of under 3 ms per frame, far smaller than the jump from 60Hz (16.7 ms) to 144Hz.

The gain is less blur in fast motion and slightly lower delay between your input and the next frame on screen. The effect is real but smaller than the headline numbers suggest, and it only shows if your game actually runs at that frame rate.

60 Hz16.7 ms 144 Hz6.9 ms 240 Hz4.2 ms
Time between frames. Frame time is 1000 divided by the refresh rate. Going from 144 Hz to 240 Hz saves under 3 ms per frame, a smaller step than 60 to 144.

Your hardware sets the ceiling

A 240Hz monitor does nothing extra if the game runs at 120 fps. Check what frame rate your graphics card holds in the games you play, at your resolution. Competitive esports titles are the usual place where 240 fps is reachable. Demanding single-player games usually are not.

Consoles are another limit: the PS5 outputs up to 120Hz in supported games, so a 240Hz panel gives no extra smoothness there.

Editorial photograph of a gaming monitor and PC tower on a desk setup
Refresh rate is only useful if your PC can consistently produce matching frame rates.

Who notices the difference

Players of fast shooters who already hold well over 200 fps are most likely to notice 240Hz. Many others see the 60 to 144Hz step clearly and the 144 to 240Hz step much less. A quick test is to compare the two in a shop or on a friend's setup in a game you play.

Response time, panel type and motion blur settings also change how motion looks. A fast 144Hz monitor can look cleaner than a slow 240Hz one, so read a monitor's response specs, not only its refresh rate.

Cost, cables and ports

Higher refresh rates often cost more, and the extra money may be better spent on a higher resolution or a better panel. To run 240Hz at 1440p you also need the right port: DisplayPort is the safe choice, and some HDMI ports cap lower. Check the monitor's spec for the refresh rate on each input.

Also think about the rest of the desk. A fast monitor needs a mouse that polls fast enough and a PC that can feed it frames, so a 240Hz panel on an older machine is money spent on a spec you cannot use. If you are building around a budget, put the money into the graphics card first, then the monitor.

Check you are actually running the refresh rate

Plenty of 144Hz and 240Hz monitors run at 60Hz because the setting was never changed. On Windows, open Display settings, choose Advanced display, and pick the highest refresh rate in the list. Then confirm that the game itself is not capped by a frame limiter or by vertical sync set to 60.

Use the right cable and port. A monitor that does 240Hz over DisplayPort may do less over HDMI, and an old cable can silently limit it. If the higher option is missing, try another cable or port before blaming the monitor.

Motion clarity and adaptive sync

Refresh rate is only part of how motion looks. Panel response time, overdrive settings and strobing modes change blur. Adaptive sync (G-Sync Compatible or FreeSync) matches the screen to your frame rate and removes tearing without adding delay, which matters when your fps rises and falls under the maximum.

That is why a well-tuned 144Hz or 165Hz monitor with good response can feel nicer than an average 240Hz panel. Look at the response and adaptive sync notes on the maker's page.

How to choose

  • Pick 144Hz or 165Hz if you play a mix of games or have a mid-range graphics card.
  • Pick 240Hz if you play fast competitive games and your PC holds 200+ fps.
  • Pick resolution and panel quality first; refresh rate is one spec among several.
  • On console, match the console's maximum: 120Hz on PS5.

See our gaming monitors hub and, for PS5, the best monitor for PS5 guide.