Between the MPG 271QRX and ViewFinity S9 (S90PC), the MPG 271QRX comes out ahead in refresh rate and response time (gtg), while the ViewFinity S9 (S90PC) wins on several specs. Overall, the MPG 271QRX scores 70.8 and the ViewFinity S9 (S90PC) scores 59.3 on our Mars Score.
Which should you buy?
The MPG 271QRX is the clear pick on raw spec strength, leading by 11.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
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, response time (gtg), peak brightness, among others.
The ViewFinity S9 (S90PC) similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable dci-p3 coverage, screen size, so those specs don't separate the two — focus on the differences below.
Bottom line: the MPG 271QRX is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why MSI - MPG 271QRX wins
- ▲Refresh rate — 500.00% more. 360 Hz vs 60 Hz.
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Peak brightness — 66.67% more. 1000 nits vs 600 nits.
- ▲USB-C Power Delivery — 8.89% more. 98 W vs 90 W.
- ▲Has G-Sync.
- ▲Has FreeSync.
- ▲Panel type: QD-OLED (vs IPS).
Why Samsung - ViewFinity S9 (S90PC) wins
- No decisive advantages.
Spec comparison
Panel
| Spec | MSI - MPG 271QRX | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Screen sizeⓘ | 27 " | 27 " |
| Panel typeⓘ | QD-OLEDlead | IPS |
| Resolutionⓘ | 1440p | 5Klead |
| Aspect ratioⓘ | 16:9 | 16:9 |
| Curvedⓘ | false | false |
Performance
| Spec | MSI - MPG 271QRX | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Refresh rateⓘ | 360 Hzlead | 60 Hz |
| Response time (GtG)ⓘ | 0.03 mslead | 5 ms |
| Peak brightnessⓘ | 1000 nitslead | 600 nits |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | truelead | false |
| FreeSyncⓘ | truelead | false |
Connectivity
| Spec | MSI - MPG 271QRX | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1lead | 0 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 98 Wlead | 90 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, MPG 271QRX or ViewFinity S9 (S90PC)?+
MPG 271QRX refreshes at 360Hz vs 60Hz.
Which has faster response time, MPG 271QRX or ViewFinity S9 (S90PC)?+
MPG 271QRX responds in 0.03ms vs 5ms.
Does MPG 271QRX or ViewFinity S9 (S90PC) have USB-C with power delivery?+
Both offer USB-C PD — 98W on MPG 271QRX, 90W on ViewFinity S9 (S90PC).
Spec-level deep dives
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