Between the ROG Swift PG39WCDM and MPG 321URX, the ROG Swift PG39WCDM comes out ahead in peak brightness and screen size, while the MPG 321URX wins on usb-c power delivery. Overall, the ROG Swift PG39WCDM scores 79.8 and the MPG 321URX scores 73.2 on our Mars Score.
Which should you buy?
The ROG Swift PG39WCDM edges ahead on the Mars Score (79.8 vs 73.2), but the 6.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ROG Swift PG39WCDM if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness, screen size.
Pick the MPG 321URX if you care most about usb-c power delivery. Its strongest claims are usb-c power delivery.
Both ship with comparable refresh rate, response time (gtg), dci-p3 coverage, so those specs don't separate the two — focus on the differences below.
Bottom line: the ROG Swift PG39WCDM is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - ROG Swift PG39WCDM wins
- ▲Peak brightness — 30.00% more. 1300 nits vs 1000 nits.
- ▲Screen size — 21.88% more. 39 " vs 32 ".
Why MSI - MPG 321URX wins
- ▲USB-C Power Delivery — 8.89% more. 98 W vs 90 W.
Spec comparison
Panel
| Spec | ASUS - ROG Swift PG39WCDM | MSI - MPG 321URX |
|---|---|---|
| Screen sizeⓘ | 39 "lead | 32 " |
| Panel typeⓘ | QD-OLED | QD-OLED |
| Resolutionⓘ | 1440p | 4Klead |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | ASUS - ROG Swift PG39WCDM | MSI - MPG 321URX |
|---|---|---|
| Refresh rateⓘ | 240 Hz | 240 Hz |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1300 nitslead | 1000 nits |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | ASUS - ROG Swift PG39WCDM | MSI - MPG 321URX |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 90 W | 98 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, ROG Swift PG39WCDM or MPG 321URX?+
MPG 321URX refreshes at 240Hz vs 240Hz.
Which has faster response time, ROG Swift PG39WCDM or MPG 321URX?+
MPG 321URX responds in 0.03ms vs 0.03ms.
Does ROG Swift PG39WCDM or MPG 321URX have USB-C with power delivery?+
Both offer USB-C PD — 90W on ROG Swift PG39WCDM, 98W on MPG 321URX.
Spec-level deep dives
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