Samsung - Odyssey OLED G8 (G80SD) vs ASUS - ROG Swift PG34WCDM
Between the Odyssey OLED G8 (G80SD) and ROG Swift PG34WCDM, the Odyssey OLED G8 (G80SD) comes out ahead in several specs, while the ROG Swift PG34WCDM wins on peak brightness and screen size. Overall, the Odyssey OLED G8 (G80SD) scores 73.2 and the ROG Swift PG34WCDM scores 75.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.2 vs 75.1). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
The Odyssey OLED G8 (G80SD) doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the ROG Swift PG34WCDM 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, screen size, g-sync, among others.
Both ship with comparable refresh rate, response time (gtg), dci-p3 coverage, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Samsung - Odyssey OLED G8 (G80SD) wins
- No decisive advantages.
Why ASUS - ROG Swift PG34WCDM wins
- ▲Peak brightness — 30.00% more. 1300 nits vs 1000 nits.
- ▲Screen size — 6.25% more. 34 " vs 32 ".
- ▲Has G-Sync.
- ▲USB-C Power Delivery: 90 W vs 0 W.
Spec comparison
Panel
| Spec | Samsung - Odyssey OLED G8 (G80SD) | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Screen sizeⓘ | 32 " | 34 "lead |
| Panel typeⓘ | QD-OLED | QD-OLED |
| Resolutionⓘ | 4Klead | 1440p |
| Aspect ratioⓘ | 16:9 | 21:9 |
| Curvedⓘ | false | truelead |
Performance
| Spec | Samsung - Odyssey OLED G8 (G80SD) | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Refresh rateⓘ | 240 Hz | 240 Hz |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1000 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | Samsung - Odyssey OLED G8 (G80SD) | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| HDMI ports | 1 | 2lead |
| DisplayPort ports | 1 | 1 |
| USB-C input | false | truelead |
| USB-C Power Deliveryⓘ | 0 W | 90 Wlead |
| KVM | false | truelead |
Frequently asked
Which has higher refresh rate, Odyssey OLED G8 (G80SD) or ROG Swift PG34WCDM?+
ROG Swift PG34WCDM refreshes at 240Hz vs 240Hz.
Which has faster response time, Odyssey OLED G8 (G80SD) or ROG Swift PG34WCDM?+
ROG Swift PG34WCDM responds in 0.03ms vs 0.03ms.
Does Odyssey OLED G8 (G80SD) or ROG Swift PG34WCDM have USB-C with power delivery?+
ROG Swift PG34WCDM offers USB-C with 90W power delivery.
Spec-level deep dives
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