LG - UltraGear 45GX950A-B vs LG - UltraGear 27GX790A-B
Between the UltraGear 45GX950A-B and UltraGear 27GX790A-B, the UltraGear 45GX950A-B comes out ahead in screen size / usb-c power delivery, while the UltraGear 27GX790A-B wins on refresh rate. Overall, the UltraGear 45GX950A-B scores 83.8 and the UltraGear 27GX790A-B scores 72.6 on our Mars Score.
Which should you buy?
The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 11.2 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 UltraGear 45GX950A-B 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 screen size, usb-c power delivery.
Pick the UltraGear 27GX790A-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 refresh rate.
Both ship with comparable response time (gtg), peak brightness, dci-p3 coverage, so those specs do not separate the two — focus on the differences below.
Bottom line: the UltraGear 45GX950A-B is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why LG - UltraGear 45GX950A-B wins
- ▲Screen size — 69.81% more. 45 " vs 26.5 ".
- ▲USB-C Power Delivery — 38.46% more. 90 W vs 65 W.
Why LG - UltraGear 27GX790A-B wins
- ▲Refresh rate — 190.91% more. 480 Hz vs 165 Hz.
Spec comparison
Panel
| Spec | LG - UltraGear 45GX950A-B | LG - UltraGear 27GX790A-B |
|---|---|---|
| Screen sizeⓘ | 45 "lead | 26.5 " |
| Panel typeⓘ | OLED | OLED |
| Resolutionⓘ | 5Klead | 1440p |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | LG - UltraGear 45GX950A-B | LG - UltraGear 27GX790A-B |
|---|---|---|
| Refresh rateⓘ | 165 Hz | 480 Hzlead |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1300 nits | 1300 nits |
| DCI-P3 coverageⓘ | 98.5 % | 98.5 % |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | LG - UltraGear 45GX950A-B | LG - UltraGear 27GX790A-B |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 90 Wlead | 65 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, UltraGear 45GX950A-B or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B refreshes at 480Hz vs 165Hz.
Which has faster response time, UltraGear 45GX950A-B or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B responds in 0.03ms vs 0.03ms.
Does UltraGear 45GX950A-B or UltraGear 27GX790A-B have USB-C with power delivery?+
Both offer USB-C PD — 90W on UltraGear 45GX950A-B, 65W on UltraGear 27GX790A-B.
Spec-level deep dives
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