Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | AMD - Radeon RX 9080 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| TDP | 330 W | 575 W |
| CUDA / Stream cores | 8192 | 21760 |
| VRAM | 24 GB | 32 GB |
| Memory bus | 384 bit | 512 bit |
| Ray tracing cores | 128 | 170 |
| Boost clock | 3100 MHz | 2407 MHz |
Between the Radeon RX 9080 XT and GeForce RTX 5090, the Radeon RX 9080 XT comes out ahead in tdp / boost clock, while the GeForce RTX 5090 wins on cuda / stream cores / vram. Overall, the Radeon RX 9080 XT scores 79 and the GeForce RTX 5090 scores 84.2 on our Mars Score.
Which should you buy?
The GeForce RTX 5090 edges ahead on the Mars Score (79 vs 84.2), but the 5.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Radeon RX 9080 XT if you care most about tdp / boost clock. The biggest gaps in its favor are tdp, boost clock. The single most decisive one: TDP — 245.00 W less. 330 vs 575.
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, vram, memory bus, among others. The single most decisive one: CUDA / Stream cores — 165.63% more. 21760 vs 8192.
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.
Which should you buy: AMD - Radeon RX 9080 XT or NVIDIA - GeForce RTX 5090?
NVIDIA - GeForce RTX 5090 leads the current Mars Score by 5.2 points.The more useful decision is the trade-off behind that result: compare vram, cuda / stream cores, boost clock, tdp against the way you will actually use the product.
Choose AMD - Radeon RX 9080 XT if…
AMD - Radeon RX 9080 XT has the measurable edge on tdp w, boost clock mhz.
Choose NVIDIA - GeForce RTX 5090 if…
NVIDIA - GeForce RTX 5090 has the measurable edge on cuda cores, vram gb, memory bus bit.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why AMD - Radeon RX 9080 XT wins
- ▲TDP — 245.00 W less. 330 vs 575.
- ▲Boost clock — 28.79% more. 3100 MHz vs 2407 MHz.
Why NVIDIA - GeForce RTX 5090 wins
- ▲CUDA / Stream cores — 165.63% more. 21760 vs 8192.
- ▲VRAM — 33.33% more. 32 GB vs 24 GB.
- ▲Memory bus — 33.33% more. 512 bit vs 384 bit.
- ▲Ray tracing cores — 32.81% more. 170 vs 128.
- ▲3DMark Time Spy — 14.04% more. 32500 vs 28500.
- ▲Has DLSS.
Spec comparison
Core
| Spec | AMD - Radeon RX 9080 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| Chipset | Navi 48 | GB202 |
| Base clockⓘ | 2100 MHzlead | 2017 MHz |
| Boost clockⓘ | 3100 MHzlead | 2407 MHz |
| CUDA / Stream coresⓘ | 8192 | 21760lead |
| Ray tracing coresⓘ | 128 | 170lead |
Memory
| Spec | AMD - Radeon RX 9080 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| VRAMⓘ | 24 GB | 32 GBlead |
| VRAM typeⓘ | GDDR7 | GDDR7 |
| Memory busⓘ | 384 bit | 512 bitlead |
Power & Form
| Spec | AMD - Radeon RX 9080 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| TDPⓘ | 330 Wlead | 575 W |
| Recommended PSUⓘ | 850 Wlead | 1000 W |
| Length | 320 mm | 304 mmlead |
| Slot size | 3-slot | 2-slot |
Benchmarks
| Spec | AMD - Radeon RX 9080 XT | NVIDIA - GeForce RTX 5090 |
|---|---|---|
| 3DMark Time Spyⓘ | 28500 | 32500lead |
| DLSSⓘ | false | truelead |
| FSRⓘ | truelead | false |
Frequently asked
Which has more VRAM, Radeon RX 9080 XT or GeForce RTX 5090?+
GeForce RTX 5090 ships with 32GB GDDR7 vs 24GB.
Which scores higher in 3DMark Time Spy, Radeon RX 9080 XT or GeForce RTX 5090?+
GeForce RTX 5090 scores 32500 vs 28500.
Which draws less power, Radeon RX 9080 XT or GeForce RTX 5090?+
Radeon RX 9080 XT draws 330W TDP vs 575W.