ASUS - ROG Swift PG39WCDM vs Samsung - Odyssey OLED G8 (G80SD)
Between the ROG Swift PG39WCDM and Odyssey OLED G8 (G80SD), the ROG Swift PG39WCDM comes out ahead in peak brightness / screen size, while the Odyssey OLED G8 (G80SD) wins on several specs. Overall, the ROG Swift PG39WCDM scores 79.8 and the Odyssey OLED G8 (G80SD) scores 73.2 on our Mars Score.
Which should you buy?
The ROG Swift PG39WCDM edges ahead on the Mars Score (79.8 vs 73.2), but the 6.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ROG Swift PG39WCDM 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 peak brightness, screen size, g-sync, among others.
The Odyssey OLED G8 (G80SD) similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable refresh rate, response time (gtg), dci-p3 coverage, so those specs do not separate the two — focus on the differences below.
Bottom line: the ROG Swift PG39WCDM is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - ROG Swift PG39WCDM wins
- ▲Peak brightness — 30.00% more. 1300 nits vs 1000 nits.
- ▲Screen size — 21.88% more. 39 " vs 32 ".
- ▲Has G-Sync.
- ▲USB-C Power Delivery: 90 W vs 0 W.
Why Samsung - Odyssey OLED G8 (G80SD) wins
- No decisive advantages.
Spec comparison
Panel
| Spec | ASUS - ROG Swift PG39WCDM | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| Screen sizeⓘ | 39 "lead | 32 " |
| Panel typeⓘ | QD-OLED | QD-OLED |
| Resolutionⓘ | 1440p | 4Klead |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | ASUS - ROG Swift PG39WCDM | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| Refresh rateⓘ | 240 Hz | 240 Hz |
| Response time (GtG)ⓘ | 0.03 ms | 0.03 ms |
| Peak brightnessⓘ | 1300 nitslead | 1000 nits |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | truelead | false |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | ASUS - ROG Swift PG39WCDM | Samsung - Odyssey OLED G8 (G80SD) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1 | 1 |
| USB-C input | truelead | false |
| USB-C Power Deliveryⓘ | 90 Wlead | 0 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, ROG Swift PG39WCDM or Odyssey OLED G8 (G80SD)?+
Odyssey OLED G8 (G80SD) refreshes at 240Hz vs 240Hz.
Which has faster response time, ROG Swift PG39WCDM or Odyssey OLED G8 (G80SD)?+
Odyssey OLED G8 (G80SD) responds in 0.03ms vs 0.03ms.
Does ROG Swift PG39WCDM or Odyssey OLED G8 (G80SD) have USB-C with power delivery?+
ROG Swift PG39WCDM offers USB-C with 90W power delivery.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.