AMD Radeon RX 6600 XT vs AMD Radeon RX 7900 XT
32.6Rasterization56.5
24.5Ray Tracing43.5
38.7Memory67
88.9Efficiency73.8
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 memory (+28) and rasterization (+24). 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
- Stronger efficiency score: 89 vs 74
- 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 memory score: 67 vs 39
- Stronger compute score: 64 vs 41
- 213% higher bandwidth: 800 GB/s vs 256 GB/s
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 | 10,200Top 82% | 26,500+160%Top 18% |
| 3DMark Speed Way | 1,850Top 94% | 5,400+192%Top 31% |
| PassMark G3D | 16,000Top 70% | 27,800+74%Top 15% |
| 1080p Ultra | 88 fpsTop 80% | 168 fps+91%Top 26% |
| 1440p Ultra | 62 fpsTop 82% | 130 fps+110%Top 20% |
| 4K Ultra | 31 fpsTop 84% | 75 fps+142%Top 20% |
Features
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
Related comparisons
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