Gigabyte - M27Q X vs Samsung - Odyssey OLED G8 (G80SD)
Between the M27Q X and Odyssey OLED G8 (G80SD), the M27Q X comes out ahead in g-sync and usb-c power delivery, while the Odyssey OLED G8 (G80SD) wins on peak brightness and response time (gtg). Overall, the M27Q X scores 65.7 and the Odyssey OLED G8 (G80SD) scores 73.2 on our Mars Score.
Which should you buy?
The Odyssey OLED G8 (G80SD) 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.
Pick the M27Q X if you care most about g-sync and usb-c power delivery. The biggest gaps in its favor are g-sync, usb-c power delivery.
Pick the Odyssey OLED G8 (G80SD) 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, response time (gtg), screen size, among others.
Both ship with comparable refresh rate, freesync, so those specs don't separate the two — focus on the differences below.
Bottom line: the Odyssey OLED G8 (G80SD) 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
- ▲Has G-Sync.
- ▲USB-C Power Delivery: 15 W vs 0 W.
Why Samsung - Odyssey OLED G8 (G80SD) wins
- ▲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 | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| 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 | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| 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ⓘ | truelead | false |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | Gigabyte - M27Q X | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1 | 1 |
| USB-C input | truelead | false |
| USB-C Power Deliveryⓘ | 15 Wlead | 0 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, M27Q X or Odyssey OLED G8 (G80SD)?+
Odyssey OLED G8 (G80SD) refreshes at 240Hz vs 240Hz.
Which has faster response time, M27Q X or Odyssey OLED G8 (G80SD)?+
Odyssey OLED G8 (G80SD) responds in 0.03ms vs 0.3ms.
Does M27Q X or Odyssey OLED G8 (G80SD) have USB-C with power delivery?+
M27Q X offers USB-C with 15W power delivery.
Spec-level deep dives
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