Between the GeForce RTX 4090 and Radeon RX 9080, the GeForce RTX 4090 comes out ahead in cuda / stream cores and vram, while the Radeon RX 9080 wins on tdp and boost clock. Overall, the GeForce RTX 4090 scores 80.3 and the Radeon RX 9080 scores 75.1 on our Mars Score.
Which should you buy?
The GeForce RTX 4090 edges ahead on the Mars Score (80.3 vs 75.1), but the 5.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the GeForce RTX 4090 if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are cuda / stream cores, vram, memory bus, among others.
Pick the Radeon RX 9080 if you care most about tdp and boost clock. Its strongest claims are tdp, boost clock.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the GeForce RTX 4090 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why NVIDIA - GeForce RTX 4090 wins
- ▲CUDA / Stream cores — 128.57% more. 16384 vs 7168.
- ▲VRAM — 20.00% more. 24 GB vs 20 GB.
- ▲Memory bus — 20.00% more. 384 bit vs 320 bit.
- ▲Ray tracing cores — 14.29% more. 128 vs 112.
- ▲3DMark Time Spy — 9.80% more. 28000 vs 25500.
- ▲Has DLSS.
Why AMD - Radeon RX 9080 wins
- ▲TDP — 160.00 W less. 290 vs 450.
- ▲Boost clock — 17.06% more. 2950 MHz vs 2520 MHz.
Spec comparison
Core
| Spec | NVIDIA - GeForce RTX 4090 | AMD - Radeon RX 9080 |
|---|---|---|
| Chipset | AD102 | Navi 48 |
| Base clockⓘ | 2235 MHzlead | 2000 MHz |
| Boost clockⓘ | 2520 MHz | 2950 MHzlead |
| CUDA / Stream coresⓘ | 16384lead | 7168 |
| Ray tracing coresⓘ | 128lead | 112 |
Memory
| Spec | NVIDIA - GeForce RTX 4090 | AMD - Radeon RX 9080 |
|---|---|---|
| VRAMⓘ | 24 GBlead | 20 GB |
| VRAM typeⓘ | GDDR6X | GDDR7lead |
| Memory busⓘ | 384 bitlead | 320 bit |
Power & Form
| Spec | NVIDIA - GeForce RTX 4090 | AMD - Radeon RX 9080 |
|---|---|---|
| TDPⓘ | 450 W | 290 Wlead |
| Recommended PSUⓘ | 850 W | 800 Wlead |
| Length | 304 mmlead | 310 mm |
| Slot size | 3-slot | 3-slot |
Benchmarks
| Spec | NVIDIA - GeForce RTX 4090 | AMD - Radeon RX 9080 |
|---|---|---|
| 3DMark Time Spyⓘ | 28000lead | 25500 |
| DLSSⓘ | truelead | false |
| FSRⓘ | false | truelead |
Frequently asked
Which has more VRAM, GeForce RTX 4090 or Radeon RX 9080?+
GeForce RTX 4090 ships with 24GB GDDR6X vs 20GB.
Which scores higher in 3DMark Time Spy, GeForce RTX 4090 or Radeon RX 9080?+
GeForce RTX 4090 scores 28000 vs 25500.
Which draws less power, GeForce RTX 4090 or Radeon RX 9080?+
Radeon RX 9080 draws 290W TDP vs 450W.
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.