AMD Radeon RX 6600 XT vs AMD Radeon RX 7900 XT
32.6Rasterization56.5
24.5Ray Tracing43.5
38.7Memoryspec-based67
88.9Efficiencyspec-based73.8
40.5Compute63.8
2 spec wins — AMD Radeon RX 6600 XT13 spec wins — AMD Radeon RX 7900 XT
InnoReviews verdict
AMD Radeon RX 7900 XT wins this graphics card face-off, 59.1 to 41.5, pulling ahead mainly in rasterization (+24) and compute (+23). AMD Radeon RX 6600 XT still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the AMD Radeon RX 6600 XT
- 47% lower TDP: 160 W vs 300 W
- Lower launch price: $379 vs $899
Reasons to pick the AMD Radeon RX 7900 XT
- Stronger rasterization score: 57 vs 33
- Stronger Ray Tracing score: 44 vs 25
- Stronger compute score: 64 vs 41
- 213% higher bandwidth: 800 GB/s vs 256 GB/s
- 192% higher 3DMark Speed Way: 5,400 vs 1,850
General
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| Announced | 2021 | 2022 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 7 nm | 5 nm+29% |
| TDP | 160 W+47% | 300 W |
| Power connector | 1x 8-pin | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| Shading units | 2,048 | 5,376+163% |
| RT cores | 32 | 84+163% |
| Tensor / AI cores | — | 168 |
| Base clock | 1,968 MHz | — |
| Boost clock | 2,589 MHz+8% | 2,400 MHz |
Memory
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| VRAM | 8 GB | 20 GB+150% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 128 bit | 320 bit+150% |
| Bandwidth | 256 GB/s | 800 GB/s+213% |
Benchmarks
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| 3DMark Time Spy | 10,200Bottom 40% | 26,500+160%Top 11% |
| 3DMark Speed Way | 1,850Bottom 8% | 5,400+192%Top 29% |
| PassMark G3D | 16,000Bottom 41% | 27,800+74%Top 10% |
| 1080p Ultra | 88 fpsBottom 19% | 168 fps+91%Top 25% |
| 1440p Ultra | 62 fpsBottom 17% | 130 fps+110%Top 19% |
| 4K Ultra | 31 fpsBottom 17% | 75 fps+142%Top 19% |
Features
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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