AMD Radeon RX 6600 vs AMD Radeon RX 7900 XT
30.1Rasterization56.5
22.7Ray Tracing43.5
37.1Memoryspec-based67
92.3Efficiencyspec-based73.8
36.6Compute63.8
2 spec wins — AMD Radeon RX 660013 spec wins — AMD Radeon RX 7900 XT
InnoReviews verdict
AMD Radeon RX 7900 XT wins this graphics card face-off, 59.1 to 40, pulling ahead mainly in compute (+27) and rasterization (+26). AMD Radeon RX 6600 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
- 56% lower TDP: 132 W vs 300 W
- Lower launch price: $329 vs $899
Reasons to pick the AMD Radeon RX 7900 XT
- Stronger rasterization score: 57 vs 30
- Stronger Ray Tracing score: 44 vs 23
- Stronger compute score: 64 vs 37
- 260% higher 3DMark Speed Way: 5,400 vs 1,500
- 257% higher bandwidth: 800 GB/s vs 224 GB/s
General
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 XT |
|---|---|---|
| Announced | 2021 | 2022 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 7 nm | 5 nm+29% |
| TDP | 132 W+56% | 300 W |
| Power connector | 1x 8-pin | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 XT |
|---|---|---|
| Shading units | 1,792 | 5,376+200% |
| RT cores | 28 | 84+200% |
| Tensor / AI cores | — | 168 |
| Base clock | 1,626 MHz | — |
| Boost clock | 2,491 MHz+4% | 2,400 MHz |
Memory
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 XT |
|---|---|---|
| VRAM | 8 GB | 20 GB+150% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 128 bit | 320 bit+150% |
| Bandwidth | 224 GB/s | 800 GB/s+257% |
Benchmarks
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 XT |
|---|---|---|
| 3DMark Time Spy | 8,400Bottom 28% | 26,500+215%Top 11% |
| 3DMark Speed Way | 1,500Bottom 4% | 5,400+260%Top 29% |
| PassMark G3D | 13,900Bottom 31% | 27,800+100%Top 10% |
| 1080p Ultra | 76 fpsBottom 12% | 168 fps+121%Top 25% |
| 1440p Ultra | 53 fpsBottom 12% | 130 fps+145%Top 19% |
| 4K Ultra | 27 fpsBottom 12% | 75 fps+178%Top 19% |
Features
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 XT |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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