NVIDIA - GeForce RTX 4080 SUPER vs AMD - Radeon RX 7900 XT
Between the GeForce RTX 4080 SUPER and Radeon RX 7900 XT, the GeForce RTX 4080 SUPER comes out ahead in cuda / stream cores and 3dmark time spy, while the Radeon RX 7900 XT wins on vram and memory bus. Overall, the GeForce RTX 4080 SUPER scores 69.7 and the Radeon RX 7900 XT scores 66.7 on our Mars Score.
Which should you buy?
The GeForce RTX 4080 SUPER edges ahead on the Mars Score (69.7 vs 66.7), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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, 3dmark time spy, boost clock, among others.
Pick the Radeon RX 7900 XT 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, tdp, among others.
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 — 90.48% more. 10240 vs 5376.
- ▲3DMark Time Spy — 14.36% more. 21500 vs 18800.
- ▲Boost clock — 6.25% more. 2550 MHz vs 2400 MHz.
- ▲Has DLSS.
Why AMD - Radeon RX 7900 XT wins
- ▲VRAM — 25.00% more. 20 GB vs 16 GB.
- ▲Memory bus — 25.00% more. 320 bit vs 256 bit.
- ▲TDP — 5.00 W less. 315 vs 320.
- ▲Ray tracing cores — 5.00% more. 84 vs 80.
Spec comparison
Core
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XT |
|---|---|---|
| Chipset | AD103 | Navi 31 |
| Base clockⓘ | 2295 MHzlead | 1500 MHz |
| Boost clockⓘ | 2550 MHzlead | 2400 MHz |
| CUDA / Stream coresⓘ | 10240lead | 5376 |
| Ray tracing coresⓘ | 80 | 84lead |
Memory
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XT |
|---|---|---|
| VRAMⓘ | 16 GB | 20 GBlead |
| VRAM typeⓘ | GDDR6Xlead | GDDR6 |
| Memory busⓘ | 256 bit | 320 bitlead |
Power & Form
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XT |
|---|---|---|
| TDPⓘ | 320 W | 315 Wlead |
| Recommended PSUⓘ | 750 W | 750 W |
| Length | 304 mm | 276 mmlead |
| Slot size | 3-slot | 2.5-slot |
Benchmarks
| Spec | NVIDIA - GeForce RTX 4080 SUPER | AMD - Radeon RX 7900 XT |
|---|---|---|
| 3DMark Time Spyⓘ | 21500lead | 18800 |
| DLSSⓘ | truelead | false |
| FSRⓘ | false | truelead |
Frequently asked
Which has more VRAM, GeForce RTX 4080 SUPER or Radeon RX 7900 XT?+
Radeon RX 7900 XT ships with 20GB GDDR6 vs 16GB.
Which scores higher in 3DMark Time Spy, GeForce RTX 4080 SUPER or Radeon RX 7900 XT?+
GeForce RTX 4080 SUPER scores 21500 vs 18800.
Which draws less power, GeForce RTX 4080 SUPER or Radeon RX 7900 XT?+
Radeon RX 7900 XT draws 315W TDP vs 320W.
Spec-level deep dives
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