240Hz and 0.03ms: Can Your Eyes Actually Tell the Difference?

Partly. Most people can see the step from 60Hz to 144Hz or 240Hz as smoother motion and less blur, but the "0.03ms" figure on OLED spec sheets measures something different from what your eyes notice, and the benefit of each further step gets smaller. Two numbers matter. Response time (GtG) is how fast a pixel changes colour; OLED panels are rated at 0.03ms, far faster than LCDs. Motion persistence (MPRT) is how long each frame stays on screen, and on a normal display it cannot be shorter than the refresh period: about 16.7ms at 60Hz, 4.2ms at 240Hz and 2.8ms at 360Hz. That persistence, not pixel speed, is the main source of the blur you see when you track a moving object. A 240Hz QD-OLED such as the MSI MAG 341CQP QD-OLED X24 is S$1,309.20 at SourceIT, and the 360Hz MSI MEG X S$2,151.60 (listed 30 Oct 2026).

What do the numbers mean?

Arithmetic using the Blur Busters rule that 1 ms of persistence equals 1 pixel of motion blur per 1,000 pixels per second of motion, on a sample-and-hold display without backlight strobing. Real blur also depends on pixel response, which is where OLED's speed helps.

So what does 0.03ms buy you?

Clean transitions. On an LCD, pixels take several milliseconds to change, which adds smearing or overshoot on top of persistence blur. OLED pixels switch almost instantly, so each frame is crisp and the blur you see is close to the persistence minimum for that refresh rate. That is why a 240Hz OLED often looks clearer in motion than a 240Hz LCD. Measured results depend on method: Tom's Hardware's test, which measures over whole frames, records 240Hz OLEDs at about 4 ms and 360Hz at about 3 ms, close to the frame time.

0.03ms tells you the pixels are not the bottleneck. The refresh rate, and your graphics card, decide the rest.

Does higher refresh actually make you play better?

Evidence points more to latency than to refresh rate alone. A 2019 NVIDIA research study with eight skilled esports players found that reduced latency had "a clear benefit in task completion time", while higher refresh rate, once latency was controlled, had "relatively minor" effects, with a small benefit in some tracking tasks. NVIDIA's separate 2019 chart linking higher frame rates to better kill-death ratios was a correlation from its own player data, and NVIDIA noted that correlation is not causation. We found no peer-reviewed study showing that people reliably tell 240Hz from 360Hz. Treat claims about that last step with caution; it may matter to elite competitive players and very little to everyone else.

Can your PC feed 240 or 360 frames a second?

A high refresh rate only helps when the graphics card produces enough frames. Tom's Hardware's June 2026 averages at native 1440p, without upscaling, run from about 96 fps on an RTX 5070 to 167 fps on an RTX 5090 across demanding games; a 3440x1440 ultrawide has about 34% more pixels than 1440p. So:

• Esports titles such as competitive shooters commonly reach 240 fps or more on mid-range cards and above.
• Demanding new games at native resolution usually do not, even on the fastest cards, without upscaling or frame generation.
• Frame generation raises displayed frame rates but does not reduce input latency in the same way as rendered frames.

The trade-offs of choosing 240Hz over 360Hz are in MSI MEG X vs MAG 341CQP X24: Is 360Hz Worth Paying More Than 240Hz?, and the wider question in Is 240Hz Overkill?

Who benefits most?

• Competitive players in fast shooters, where clearer motion and lower latency help tracking and reaction.
• Anyone moving from 60Hz, where the difference in scrolling, mouse movement and camera pans is obvious.
• Less so: players of slower single-player games, where image quality and resolution may matter more than going from 240 to 360Hz.

Buying in Singapore

SourceIT supplies high-refresh QD-OLED monitors including the MSI MAG 272QP QD-OLED X24 (26.5" 1440p 240Hz, S$594), MSI MAG 341CQP QD-OLED X24 (34" 240Hz, S$1,309.20), MSI MPG 271QR QD-OLED X50 (26.5" 500Hz, S$1,161.60) and MSI MEG X (34" 360Hz, S$2,151.60), with local warranty and a GST invoice. Prices listed 30 Oct 2026. Browse the MSI monitor collection. For a quotation, use Request for Quotation on the product page, call (65) 6978 3502, email Sales@sourceit.com.sg or use our contact page.

Frequently asked questions

What does 0.03ms response time mean? It is the manufacturer's rated grey-to-grey pixel transition time for OLED panels. It means pixel speed is not the main source of blur; the refresh rate sets most of the remaining motion blur.

What is the difference between GtG and MPRT? GtG is how long a pixel takes to change colour. MPRT is how long each frame stays visible, which on a normal display cannot be shorter than the refresh period, such as 4.2 ms at 240Hz.

Can people see the difference between 144Hz and 240Hz? Many can, as smoother motion and less blur when tracking moving objects. The benefit per step gets smaller at higher rates.

Is 360Hz noticeably better than 240Hz? We found no peer-reviewed study showing people reliably tell them apart. NVIDIA research suggests latency matters more to performance than refresh rate alone.

Do I need a powerful GPU for a 240Hz monitor? To reach 240 fps in demanding games, yes, and often upscaling too. Esports titles reach high frame rates on mid-range cards.