Samsung - Odyssey OLED G9 (G93SC) vs LG - UltraGear 27GX790A-B
Between the Odyssey OLED G9 (G93SC) and UltraGear 27GX790A-B, the Odyssey OLED G9 (G93SC) comes out ahead in screen size and dci-p3 coverage, while the UltraGear 27GX790A-B wins on refresh rate and peak brightness. Overall, the Odyssey OLED G9 (G93SC) scores 89 and the UltraGear 27GX790A-B scores 72.6 on our Mars Score.
Which should you buy?
The Odyssey OLED G9 (G93SC) is the clear pick on raw spec strength, leading by 16.4 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 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. The biggest gaps in its favor are screen size, dci-p3 coverage, panel type.
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, peak brightness, g-sync.
Both ship with comparable response time (gtg), usb-c power delivery, freesync, so those specs don't 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.
Why Samsung - Odyssey OLED G9 (G93SC) wins
- ▲Screen size — 84.91% more. 49 " vs 26.5 ".
- ▲DCI-P3 coverage — 0.51% more. 99 % vs 98.5 %.
- ▲Panel type: QD-OLED (vs OLED).
Why LG - UltraGear 27GX790A-B wins
- ▲Refresh rate — 100.00% more. 480 Hz vs 240 Hz.
- ▲Peak brightness — 30.00% more. 1300 nits vs 1000 nits.
- ▲Has G-Sync.
Spec comparison
Panel
| Spec | Samsung - Odyssey OLED G9 (G93SC) | LG - UltraGear 27GX790A-B |
|---|---|---|
| Screen sizeⓘ | 49 "lead | 26.5 " |
| Panel typeⓘ | QD-OLEDlead | OLED |
| Resolutionⓘ | 5Klead | 1440p |
| Aspect ratioⓘ | 32:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | Samsung - Odyssey OLED G9 (G93SC) | LG - UltraGear 27GX790A-B |
|---|---|---|
| Refresh rateⓘ | 240 Hz | 480 Hzlead |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1000 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 99 %lead | 98.5 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | Samsung - Odyssey OLED G9 (G93SC) | LG - UltraGear 27GX790A-B |
|---|---|---|
| HDMI ports | 1 | 2lead |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 65 W | 65 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, Odyssey OLED G9 (G93SC) or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B refreshes at 480Hz vs 240Hz.
Which has faster response time, Odyssey OLED G9 (G93SC) or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B responds in 0.03ms vs 0.03ms.
Does Odyssey OLED G9 (G93SC) or UltraGear 27GX790A-B have USB-C with power delivery?+
Both offer USB-C PD — 65W on Odyssey OLED G9 (G93SC), 65W on UltraGear 27GX790A-B.
Spec-level deep dives
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