Between the MPG 271QRX and ROG Swift PG34WCDM, the MPG 271QRX comes out ahead in refresh rate and usb-c power delivery, while the ROG Swift PG34WCDM wins on peak brightness and screen size. Overall, the MPG 271QRX scores 70.8 and the ROG Swift PG34WCDM scores 75.1 on our Mars Score.
Which should you buy?
The ROG Swift PG34WCDM edges ahead on the Mars Score (70.8 vs 75.1), but the 4.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the MPG 271QRX 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 refresh rate, usb-c power delivery.
Pick the ROG Swift PG34WCDM 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 peak brightness, screen size.
Both ship with comparable response time (gtg), dci-p3 coverage, panel type, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why MSI - MPG 271QRX wins
- ▲Refresh rate — 50.00% more. 360 Hz vs 240 Hz.
- ▲USB-C Power Delivery — 8.89% more. 98 W vs 90 W.
Why ASUS - ROG Swift PG34WCDM wins
- ▲Peak brightness — 30.00% more. 1300 nits vs 1000 nits.
- ▲Screen size — 25.93% more. 34 " vs 27 ".
Spec comparison
Panel
| Spec | MSI - MPG 271QRX | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Screen sizeⓘ | 27 " | 34 "lead |
| Panel typeⓘ | QD-OLED | QD-OLED |
| Resolutionⓘ | 1440p | 1440p |
| Aspect ratioⓘ | 16:9 | 21:9 |
| Curvedⓘ | false | truelead |
Performance
| Spec | MSI - MPG 271QRX | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Refresh rateⓘ | 360 Hzlead | 240 Hz |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1000 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | MSI - MPG 271QRX | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 98 Wlead | 90 W |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, MPG 271QRX or ROG Swift PG34WCDM?+
MPG 271QRX refreshes at 360Hz vs 240Hz.
Which has faster response time, MPG 271QRX or ROG Swift PG34WCDM?+
ROG Swift PG34WCDM responds in 0.03ms vs 0.03ms.
Does MPG 271QRX or ROG Swift PG34WCDM have USB-C with power delivery?+
Both offer USB-C PD — 98W on MPG 271QRX, 90W on ROG Swift PG34WCDM.
Spec-level deep dives
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