NVIDIA - GeForce RTX 4080 SUPER vs AMD - Radeon RX 7900 XTX
Between the GeForce RTX 4080 SUPER and Radeon RX 7900 XTX, the GeForce RTX 4080 SUPER comes out ahead in cuda / stream cores and tdp, while the Radeon RX 7900 XTX wins on vram and memory bus. Overall, the GeForce RTX 4080 SUPER scores 69.7 and the Radeon RX 7900 XTX scores 71 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (69.7 vs 71). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the GeForce RTX 4080 SUPER 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, tdp, 3dmark time spy, among others.
Pick the Radeon RX 7900 XTX if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are vram, memory bus, ray tracing cores.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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 NVIDIA - GeForce RTX 4080 SUPER wins
- ▲CUDA / Stream cores — 66.67% more. 10240 vs 6144.
- ▲TDP — 35.00 W less. 320 vs 355.
- ▲3DMark Time Spy — 2.38% more. 21500 vs 21000.
- ▲Boost clock — 2.00% more. 2550 MHz vs 2500 MHz.
- ▲Has DLSS.
Why AMD - Radeon RX 7900 XTX wins
- ▲VRAM — 50.00% more. 24 GB vs 16 GB.
- ▲Memory bus — 50.00% more. 384 bit vs 256 bit.
- ▲Ray tracing cores — 20.00% more. 96 vs 80.
Spec comparison
Core
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XTX |
|---|---|---|
| Chipset | AD103 | Navi 31 |
| Base clockⓘ | 2295 MHzlead | 1900 MHz |
| Boost clockⓘ | 2550 MHzlead | 2500 MHz |
| CUDA / Stream coresⓘ | 10240lead | 6144 |
| Ray tracing coresⓘ | 80 | 96lead |
Memory
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XTX |
|---|---|---|
| VRAMⓘ | 16 GB | 24 GBlead |
| VRAM typeⓘ | GDDR6Xlead | GDDR6 |
| Memory busⓘ | 256 bit | 384 bitlead |
Power & Form
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XTX |
|---|---|---|
| TDPⓘ | 320 Wlead | 355 W |
| Recommended PSUⓘ | 750 Wlead | 800 W |
| Length | 304 mm | 287 mmlead |
| Slot size | 3-slot | 2.5-slot |
Benchmarks
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XTX |
|---|---|---|
| 3DMark Time Spyⓘ | 21500lead | 21000 |
| DLSSⓘ | truelead | false |
| FSRⓘ | false | truelead |
Frequently asked
Which has more VRAM, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+
Radeon RX 7900 XTX ships with 24GB GDDR6 vs 16GB.
Which scores higher in 3DMark Time Spy, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+
GeForce RTX 4080 SUPER scores 21500 vs 21000.
Which draws less power, GeForce RTX 4080 SUPER or Radeon RX 7900 XTX?+
GeForce RTX 4080 SUPER draws 320W TDP vs 355W.
Spec-level deep dives
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