Between the M27Q X and MPG 321URX, the M27Q X comes out ahead in several specs, while the MPG 321URX wins on usb-c power delivery and peak brightness. Overall, the M27Q X scores 65.7 and the MPG 321URX scores 73.2 on our Mars Score.
Which should you buy?
The MPG 321URX edges ahead on the Mars Score (65.7 vs 73.2), but the 7.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The M27Q X doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the MPG 321URX if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are usb-c power delivery, peak brightness, response time (gtg), among others.
Both ship with comparable refresh rate, g-sync, freesync, so those specs don't separate the two — focus on the differences below.
Bottom line: the MPG 321URX is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Gigabyte - M27Q X wins
- No decisive advantages.
Why MSI - MPG 321URX wins
- ▲USB-C Power Delivery — 553.33% more. 98 W vs 15 W.
- ▲Peak brightness — 150.00% more. 1000 nits vs 400 nits.
- ▲Response time (GtG) — 90.00% less. 0.03 ms vs 0.3 ms.
- ▲Screen size — 18.52% more. 32 " vs 27 ".
- ▲DCI-P3 coverage — 7.61% more. 99 % vs 92 %.
- ▲Panel type: QD-OLED (vs IPS).
Spec comparison
Panel
| Spec | Gigabyte - M27Q X | MSI - MPG 321URX |
|---|---|---|
| Screen sizeⓘ | 27 " | 32 "lead |
| Panel typeⓘ | IPS | QD-OLEDlead |
| Resolutionⓘ | 1440p | 4Klead |
| Aspect ratioⓘ | 16:9 | 16:9 |
| Curvedⓘ | false | false |
Performance
| Spec | Gigabyte - M27Q X | MSI - MPG 321URX |
|---|---|---|
| Refresh rateⓘ | 240 Hz | 240 Hz |
| Response time (GtG)ⓘ | 0.3 ms | 0.03 mslead |
| Peak brightnessⓘ | 400 nits | 1000 nitslead |
| DCI-P3 coverageⓘ | 92 % | 99 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | Gigabyte - M27Q X | MSI - MPG 321URX |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 15 W | 98 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, M27Q X or MPG 321URX?+
MPG 321URX refreshes at 240Hz vs 240Hz.
Which has faster response time, M27Q X or MPG 321URX?+
MPG 321URX responds in 0.03ms vs 0.3ms.
Does M27Q X or MPG 321URX have USB-C with power delivery?+
Both offer USB-C PD — 15W on M27Q X, 98W on MPG 321URX.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.