Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | AMD - Radeon RX 7700 XT | AMD - Radeon RX 7800 XT |
|---|---|---|
| VRAM | 12 GB | 16 GB |
| Memory bus | 192 bit | 256 bit |
| TDP | 245 W | 263 W |
| 3DMark Time Spy | 14800 | 16500 |
| CUDA / Stream cores | 3456 | 3840 |
| Ray tracing cores | 54 | 60 |
Between the Radeon RX 7700 XT and Radeon RX 7800 XT, the Radeon RX 7700 XT comes out ahead in tdp / boost clock, while the Radeon RX 7800 XT wins on vram / memory bus. Overall, the Radeon RX 7700 XT scores 61.6 and the Radeon RX 7800 XT scores 63.9 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (61.6 vs 63.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Radeon RX 7700 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 — 18.00 W less. 245 vs 263.
Pick the Radeon RX 7800 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, 3dmark time spy, among others. The single most decisive one: VRAM — 33.33% more. 16 GB vs 12 GB.
Both ship with comparable 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 7700 XT or AMD - Radeon RX 7800 XT?
AMD - Radeon RX 7800 XT leads the current Mars Score by 2.3 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 7700 XT if…
AMD - Radeon RX 7700 XT has the measurable edge on tdp w, boost clock mhz.
Choose AMD - Radeon RX 7800 XT if…
AMD - Radeon RX 7800 XT has the measurable edge on vram gb, memory bus bit, timespy score.
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 7700 XT wins
- ▲TDP — 18.00 W less. 245 vs 263.
- ▲Boost clock — 4.69% more. 2544 MHz vs 2430 MHz.
Why AMD - Radeon RX 7800 XT wins
- ▲VRAM — 33.33% more. 16 GB vs 12 GB.
- ▲Memory bus — 33.33% more. 256 bit vs 192 bit.
- ▲3DMark Time Spy — 11.49% more. 16500 vs 14800.
- ▲CUDA / Stream cores — 11.11% more. 3840 vs 3456.
- ▲Ray tracing cores — 11.11% more. 60 vs 54.
Spec comparison
Core
| Spec | AMD - Radeon RX 7700 XT | AMD - Radeon RX 7800 XT |
|---|---|---|
| Chipset | Navi 32 | Navi 32 |
| Base clockⓘ | 1700 MHzlead | 1295 MHz |
| Boost clockⓘ | 2544 MHzlead | 2430 MHz |
| CUDA / Stream coresⓘ | 3456 | 3840lead |
| Ray tracing coresⓘ | 54 | 60lead |
Memory
| Spec | AMD - Radeon RX 7700 XT | AMD - Radeon RX 7800 XT |
|---|---|---|
| VRAMⓘ | 12 GB | 16 GBlead |
| VRAM typeⓘ | GDDR6 | GDDR6 |
| Memory busⓘ | 192 bit | 256 bitlead |
Power & Form
| Spec | AMD - Radeon RX 7700 XT | AMD - Radeon RX 7800 XT |
|---|---|---|
| TDPⓘ | 245 Wlead | 263 W |
| Recommended PSUⓘ | 700 W | 700 W |
| Length | 267 mm | 267 mm |
| Slot size | 2.5-slot | 2.5-slot |
Benchmarks
| Spec | AMD - Radeon RX 7700 XT | AMD - Radeon RX 7800 XT |
|---|---|---|
| 3DMark Time Spyⓘ | 14800 | 16500lead |
| DLSSⓘ | false | false |
| FSRⓘ | true | true |
Frequently asked
Which has more VRAM, Radeon RX 7700 XT or Radeon RX 7800 XT?+
Radeon RX 7800 XT ships with 16GB GDDR6 vs 12GB.
Which scores higher in 3DMark Time Spy, Radeon RX 7700 XT or Radeon RX 7800 XT?+
Radeon RX 7800 XT scores 16500 vs 14800.
Which draws less power, Radeon RX 7700 XT or Radeon RX 7800 XT?+
Radeon RX 7700 XT draws 245W TDP vs 263W.