How Do 240Hz and 320Hz Monitors Compare for Gaming?

The jump from 240Hz to 320Hz is a real but narrow gain: it cuts the time between frames from about 4.2ms to about 3.1ms, so it mainly helps players who already sustain very high frame rates and are sensitive to motion clarity. If your PC can't push well past 240fps in the games you play, a 240Hz panel at a higher resolution or better price is usually the smarter buy. The choice becomes more interesting now that 320Hz has reached the 27" 1440p QD-OLED segment, where it competes directly with 240Hz QHD and 240Hz 4K models.

What the refresh rate numbers actually mean

Refresh rate is how many times per second the panel redraws. The frame interval is simply 1000 divided by the refresh rate:

That ~1.1ms difference is the entire theoretical benefit. In practice you only feel it when the GPU is delivering frames fast enough to fill those slots, and when the game itself isn't the bottleneck.

Where 320Hz helps, and where it doesn't

320Hz pays off in fast, competitive titles where you track motion continuously — shooters, racing, anything with rapid camera movement. At these speeds the limiting factor is often motion blur and pixel response rather than raw frame rate, which is why panel technology matters as much as the number.

It does not help much if:

• Your average frame rate sits near or below 240fps, so the extra slots go unfilled.
• You play slower, cinematic or strategy games where 120–165Hz already looks smooth.
• You'd have to drop resolution or visual settings to reach 320fps, trading image quality for a marginal smoothness gain.

The resolution trade-off matters more than 240 vs 320

The more consequential decision is usually QHD versus 4K, not 240Hz versus 320Hz.

• QHD (1440p) at 240–320Hz: easier to drive to high frame rates, sharper than 1080p, and the current sweet spot for competitive play. The ASUS ROG Strix OLED XG27ACDMSR is a 320Hz QHD QD-OLED example, and the MSI MAG 272QPCT QD-OLED X24 is a 240Hz QHD alternative in the same segment.
• 4K UHD at 240Hz: much harder to feed at high frame rates, but far more detailed. The MSI MPG 322UR QD-OLED X24 is a 240Hz 4K UHD model, and the Gigabyte MO32U24 is a 240Hz QD-OLED with HDMI 2.1 — useful if you also want to connect consoles or run higher-bandwidth sources.
• Ultrawide VA at 200Hz: a different shape and panel type entirely. The Philips Evnia 34M2C5601QA is a 200Hz VA ultrawide, aimed at immersion rather than peak competitive refresh.

If you can't decide between QHD and 4K, pick based on your GPU: a card that comfortably exceeds 240fps at 1440p will often struggle to hold 240fps at 4K in the same titles.

QD-OLED at high refresh rates

QD-OLED is well suited to high refresh rates because its per-pixel response is very fast, so the panel keeps up with short frame intervals instead of smearing them. The newest generation — described as Penta Tandem QD-OLED — is noted for improvements to brightness and the screen surface, which affect how the monitor looks in a bright room and how the coating handles reflections. That generation has now arrived in the popular 27" 1440p segment via the ASUS ROG Strix OLED XG27ACDMSR, which pairs a 320Hz improved QD-OLED panel with ROG Strix styling.

For buyers, the practical point is that a 320Hz QD-OLED and a 240Hz QD-OLED share the same core strengths (contrast, color, response); the refresh rate is the differentiator, not the panel family.

Choosing by player type

• Competitive shooter player with a strong GPU: 320Hz QHD QD-OLED, provided you actually hit frame rates above 240.
• All-round gamer who also wants detail: 240Hz QHD QD-OLED — nearly the same feel, easier to drive, often better value.
• Player wanting maximum sharpness or console support: 240Hz 4K QD-OLED, especially a model with HDMI 2.1.
• Immersion-focused player: a 200Hz ultrawide like the Philips Evnia 34M2C5601QA, accepting a lower refresh rate for the wider format.

The honest summary: 320Hz is a genuine step, but a small one. Spend the extra only if your frame rates and your sensitivity to motion both justify it; otherwise put the money toward resolution, panel quality, or a GPU that can feed the monitor you already have.