Gigabyte - M27Q X vs Samsung - Odyssey OLED G9 (G93SC)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Gigabyte - M27Q X | Samsung - Odyssey OLED G9 (G93SC) |
|---|---|---|
| USB-C Power Delivery | 15 W | 65 W |
| Peak brightness | 400 nits | 1000 nits |
| Response time (GtG) | 0.3 ms | 0.03 ms |
| Screen size | 27 " | 49 " |
| DCI-P3 coverage | 92 % | 99 % |
| G-Sync | true | false |
Between the M27Q X and Odyssey OLED G9 (G93SC), the M27Q X comes out ahead in g-sync, while the Odyssey OLED G9 (G93SC) wins on usb-c power delivery / peak brightness. Overall, the M27Q X scores 67.6 and the Odyssey OLED G9 (G93SC) scores 85.6 on our Mars Score.
Which should you buy?
The Odyssey OLED G9 (G93SC) is the clear pick on raw spec strength, leading by 18.0 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 M27Q X if you care most about g-sync. The biggest gaps in its favor are g-sync. The single most decisive one: Has G-Sync.
Pick the Odyssey OLED G9 (G93SC) 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. The single most decisive one: USB-C Power Delivery — 333.33% more. 65 W vs 15 W.
Both ship with comparable refresh rate, freesync, so those specs do not separate the two — focus on the differences below.
Bottom line: the Odyssey OLED G9 (G93SC) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Gigabyte - M27Q X or Samsung - Odyssey OLED G9 (G93SC)?
Samsung - Odyssey OLED G9 (G93SC) leads the current Mars Score by 18.0 points.The more useful decision is the trade-off behind that result: compare screen size, panel type against the way you will actually use the product.
Choose Gigabyte - M27Q X if…
Gigabyte - M27Q X has the measurable edge on has g sync.
Choose Samsung - Odyssey OLED G9 (G93SC) if…
Samsung - Odyssey OLED G9 (G93SC) has the measurable edge on has usb c pd w, peak brightness nits, response time ms.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Gigabyte - M27Q X wins
- ▲Has G-Sync.
Why Samsung - Odyssey OLED G9 (G93SC) wins
- ▲USB-C Power Delivery — 333.33% more. 65 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 — 81.48% more. 49 " 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 G9 (G93SC) |
|---|---|---|
| Screen size | 27 " | 49 "lead |
| Panel typeⓘ | IPS | QD-OLEDlead |
| Resolutionⓘ | 1440p | 5Klead |
| Aspect ratioⓘ | 16:9 | 32:9 |
| Curvedⓘ | false | truelead |
Performance
| Spec | Gigabyte - M27Q X | Samsung - Odyssey OLED G9 (G93SC) |
|---|---|---|
| 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 G9 (G93SC) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 15 W | 65 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, M27Q X or Odyssey OLED G9 (G93SC)?+
Odyssey OLED G9 (G93SC) refreshes at 240Hz vs 240Hz.
Which has faster response time, M27Q X or Odyssey OLED G9 (G93SC)?+
Odyssey OLED G9 (G93SC) responds in 0.03ms vs 0.3ms.
Does M27Q X or Odyssey OLED G9 (G93SC) have USB-C with power delivery?+
Both offer USB-C PD — 15W on M27Q X, 65W on Odyssey OLED G9 (G93SC).