Between the M27Q X and UltraGear 27GP950-B, the M27Q X comes out ahead in response time (gtg) and refresh rate, while the UltraGear 27GP950-B wins on peak brightness and dci-p3 coverage. Overall, the M27Q X scores 65.7 and the UltraGear 27GP950-B scores 78.2 on our Mars Score.
Which should you buy?
The UltraGear 27GP950-B is the clear pick on raw spec strength, leading by 12.5 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 M27Q X 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 response time (gtg), refresh rate.
Pick the UltraGear 27GP950-B 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, dci-p3 coverage.
Both ship with comparable screen size, panel type, g-sync, so those specs don't separate the two — focus on the differences below.
Bottom line: the UltraGear 27GP950-B 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
- ▲Response time (GtG) — 70.00% less. 0.3 ms vs 1 ms.
- ▲Refresh rate — 50.00% more. 240 Hz vs 160 Hz.
Why LG - UltraGear 27GP950-B wins
- ▲Peak brightness — 50.00% more. 600 nits vs 400 nits.
- ▲DCI-P3 coverage — 6.52% more. 98 % vs 92 %.
Spec comparison
Panel
| Spec | Gigabyte - M27Q X | LG - UltraGear 27GP950-B |
|---|---|---|
| Screen sizeⓘ | 27 " | 27 " |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 1440p | 4Klead |
| Aspect ratioⓘ | 16:9 | 16:9 |
| Curvedⓘ | false | false |
Performance
| Spec | Gigabyte - M27Q X | LG - UltraGear 27GP950-B |
|---|---|---|
| Refresh rateⓘ | 240 Hzlead | 160 Hz |
| Response time (GtG)ⓘ | 0.3 mslead | 1 ms |
| Peak brightnessⓘ | 400 nits | 600 nitslead |
| DCI-P3 coverageⓘ | 92 % | 98 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | Gigabyte - M27Q X | LG - UltraGear 27GP950-B |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | truelead | false |
| USB-C Power Deliveryⓘ | 15 W | — |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, M27Q X or UltraGear 27GP950-B?+
M27Q X refreshes at 240Hz vs 160Hz.
Which has faster response time, M27Q X or UltraGear 27GP950-B?+
M27Q X responds in 0.3ms vs 1ms.
Does M27Q X or UltraGear 27GP950-B have USB-C with power delivery?+
M27Q X offers USB-C with 15W power delivery.
Spec-level deep dives
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