Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | AMD - Radeon RX 7800 XT | AMD - Radeon RX 9070 XT |
|---|---|---|
| TDP | 263 W | 304 W |
| Boost clock | 2430 MHz | 2970 MHz |
| 3DMark Time Spy | 16500 | 19200 |
| CUDA / Stream cores | 3840 | 4096 |
| Ray tracing cores | 60 | 64 |
Between the Radeon RX 7800 XT and Radeon RX 9070 XT, the Radeon RX 7800 XT comes out ahead in tdp, while the Radeon RX 9070 XT wins on boost clock / 3dmark time spy. Overall, the Radeon RX 7800 XT scores 63.9 and the Radeon RX 9070 XT scores 67.8 on our Mars Score.
Which should you buy?
The Radeon RX 9070 XT edges ahead on the Mars Score (63.9 vs 67.8), but the 3.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Radeon RX 7800 XT if you care most about tdp. The biggest gaps in its favor are tdp. The single most decisive one: TDP — 41.00 W less. 263 vs 304.
Pick the Radeon RX 9070 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 boost clock, 3dmark time spy, cuda / stream cores, among others. The single most decisive one: Boost clock — 22.22% more. 2970 MHz vs 2430 MHz.
Both ship with comparable vram, memory bus, dlss, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: AMD - Radeon RX 7800 XT or AMD - Radeon RX 9070 XT?
AMD - Radeon RX 9070 XT leads the current Mars Score by 3.9 points.The more useful decision is the trade-off behind that result: compare cuda / stream cores, boost clock, tdp against the way you will actually use the product.
Choose AMD - Radeon RX 7800 XT if…
AMD - Radeon RX 7800 XT has the measurable edge on tdp w.
Choose AMD - Radeon RX 9070 XT if…
AMD - Radeon RX 9070 XT has the measurable edge on boost clock mhz, timespy score, cuda cores.
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 7800 XT wins
- ▲TDP — 41.00 W less. 263 vs 304.
Why AMD - Radeon RX 9070 XT wins
- ▲Boost clock — 22.22% more. 2970 MHz vs 2430 MHz.
- ▲3DMark Time Spy — 16.36% more. 19200 vs 16500.
- ▲CUDA / Stream cores — 6.67% more. 4096 vs 3840.
- ▲Ray tracing cores — 6.67% more. 64 vs 60.
Spec comparison
Core
| Spec | AMD - Radeon RX 7800 XT | AMD - Radeon RX 9070 XT |
|---|---|---|
| Chipset | Navi 32 | Navi 48 |
| Base clockⓘ | 1295 MHz | 2400 MHzlead |
| Boost clockⓘ | 2430 MHz | 2970 MHzlead |
| CUDA / Stream coresⓘ | 3840 | 4096lead |
| Ray tracing coresⓘ | 60 | 64lead |
Memory
| Spec | AMD - Radeon RX 7800 XT | AMD - Radeon RX 9070 XT |
|---|---|---|
| VRAMⓘ | 16 GB | 16 GB |
| VRAM typeⓘ | GDDR6 | GDDR6 |
| Memory busⓘ | 256 bit | 256 bit |
Power & Form
| Spec | AMD - Radeon RX 7800 XT | AMD - Radeon RX 9070 XT |
|---|---|---|
| TDPⓘ | 263 Wlead | 304 W |
| Recommended PSUⓘ | 700 Wlead | 750 W |
| Length | 267 mmlead | 287 mm |
| Slot size | 2.5-slot | 2.5-slot |
Benchmarks
| Spec | AMD - Radeon RX 7800 XT | AMD - Radeon RX 9070 XT |
|---|---|---|
| 3DMark Time Spyⓘ | 16500 | 19200lead |
| DLSSⓘ | false | false |
| FSRⓘ | true | true |
Frequently asked
Which has more VRAM, Radeon RX 7800 XT or Radeon RX 9070 XT?+
Radeon RX 9070 XT ships with 16GB GDDR6 vs 16GB.
Which scores higher in 3DMark Time Spy, Radeon RX 7800 XT or Radeon RX 9070 XT?+
Radeon RX 9070 XT scores 19200 vs 16500.
Which draws less power, Radeon RX 7800 XT or Radeon RX 9070 XT?+
Radeon RX 7800 XT draws 263W TDP vs 304W.