Between the Radeon RX 7800 XT and GeForce RTX 5090, the Radeon RX 7800 XT comes out ahead in tdp and boost clock, while the GeForce RTX 5090 wins on cuda / stream cores and ray tracing cores. Overall, the Radeon RX 7800 XT scores 62.5 and the GeForce RTX 5090 scores 88.5 on our Mars Score.
Which should you buy?
The GeForce RTX 5090 is the clear pick on raw spec strength, leading by 26.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Radeon RX 7800 XT if you care most about tdp and boost clock. The biggest gaps in its favor are tdp, boost clock.
Pick the GeForce RTX 5090 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 cuda / stream cores, ray tracing cores, vram, among others.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the GeForce RTX 5090 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why AMD - Radeon RX 7800 XT wins
- ▲TDP — 312.00 W less. 263 vs 575.
- ▲Boost clock — 0.96% more. 2430 MHz vs 2407 MHz.
Why NVIDIA - GeForce RTX 5090 wins
- ▲CUDA / Stream cores — 466.67% more. 21760 vs 3840.
- ▲Ray tracing cores — 183.33% more. 170 vs 60.
- ▲VRAM — 100.00% more. 32 GB vs 16 GB.
- ▲Memory bus — 100.00% more. 512 bit vs 256 bit.
- ▲3DMark Time Spy — 96.97% more. 32500 vs 16500.
- ▲Has DLSS.
Spec comparison
Core
| Spec | AMD - Radeon RX 7800 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| Chipset | Navi 32 | GB202 |
| Base clockⓘ | 1295 MHz | 2017 MHzlead |
| Boost clockⓘ | 2430 MHzlead | 2407 MHz |
| CUDA / Stream coresⓘ | 3840 | 21760lead |
| Ray tracing coresⓘ | 60 | 170lead |
Memory
| Spec | AMD - Radeon RX 7800 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| VRAMⓘ | 16 GB | 32 GBlead |
| VRAM typeⓘ | GDDR6 | GDDR7lead |
| Memory busⓘ | 256 bit | 512 bitlead |
Power & Form
| Spec | AMD - Radeon RX 7800 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| TDPⓘ | 263 Wlead | 575 W |
| Recommended PSUⓘ | 700 Wlead | 1000 W |
| Length | 267 mmlead | 304 mm |
| Slot size | 2.5-slot | 2-slot |
Benchmarks
| Spec | AMD - Radeon RX 7800 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| 3DMark Time Spyⓘ | 16500 | 32500lead |
| DLSSⓘ | false | truelead |
| FSRⓘ | truelead | false |
Frequently asked
Which has more VRAM, Radeon RX 7800 XT or GeForce RTX 5090?+
GeForce RTX 5090 ships with 32GB GDDR7 vs 16GB.
Which scores higher in 3DMark Time Spy, Radeon RX 7800 XT or GeForce RTX 5090?+
GeForce RTX 5090 scores 32500 vs 16500.
Which draws less power, Radeon RX 7800 XT or GeForce RTX 5090?+
Radeon RX 7800 XT draws 263W TDP vs 575W.
Spec-level deep dives
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