144Hz vs 240Hz vs 360Hz vs 540Hz: How Much Does Refresh Rate Help?

Short answer: 144→240 is the last upgrade you'll actually feel; 360 and 540 are real but sharply diminishing, and they do nothing unless your FPS sustains the matching frame rate and the panel is fast enough to keep up. Refresh rate is a floor, not a booster — clearing it removes a ceiling on smoothness and aim feedback, but it doesn't add skill, and the gaps between the high tiers are measured in fractions of a millisecond against a human reaction time of roughly 200 ms.

Frame time is just 1000 ÷ Hz ms — the time a single frame stays on screen. The headline is how fast the deltas shrink. Each step buys you less than the one before:

Going 144→240 shaves 2.77 ms. Going 240→360 shaves half that. 360→540 shaves under 1 ms. You're paying more money for a smaller and smaller slice of time, and that slice is being compared against a reaction window hundreds of times larger. That's the entire story of diminishing returns in one table.

A 360 Hz monitor only shows you 360 unique frames per second if your game is actually rendering 360 FPS. In CS2 and Valorant, frame rate is overwhelmingly CPU-bound at competitive settings — the GPU is rarely the wall. If your 1% lows sit at 240 while your average is 400, a big chunk of what the 360 Hz panel could show is being repeated, not refreshed.

• Match the panel to your real, sustained FPS — specifically your 1% lows, not your peak average. A stable 240 fps on a 240 Hz panel beats a stuttery 380 fps on a 360 Hz panel.
• 540 Hz is a luxury that needs an elite CPU to feed it in a real match with smokes, utility, and a full server. If you can't hold >500 fps in the worst moments, you're buying a number you never see.

Refresh rate sets how often a new frame can appear; pixel response time governs how fast each pixel actually finishes changing colour. If a panel needs longer to transition than its frame time allows, you get smearing and ghosting that quietly eats the advantage the high Hz was supposed to give. A 360 Hz panel with sloppy response is worse than a clean 240 Hz one.

• Response time must be comfortably below frame time. At 540 Hz the frame time is 1.85 ms — the pixels need to settle faster than that, or the extra Hz is marketing.
• This is where the real upgrade lives now. Past 240 Hz, panel quality (response, overdrive tuning, OLED vs LCD) matters more than the raw Hz number on the box.

• On 60/144 Hz now: jump to 240 Hz. This is the genuinely felt upgrade — smoother tracking, clearer flicks, tighter aim feedback.
• On 240 Hz already: 360 Hz is a nice-to-have only if you reliably sustain ~360 fps and the panel is fast. Otherwise spend the money on a better CPU or a faster-response panel.
• 540 Hz: for the tiny minority running an elite CPU who want the last marginal sliver — and who understand it's a sliver. It won't move your rank.