AMD Radeon RX 6600 vs AMD Radeon RX 7900 GRE
30.1Rasterization52.7
22.7Ray Tracing39.2
37.1Memoryspec-based58.2
92.3Efficiencyspec-based78.7
36.6Compute60.2
2 spec wins — AMD Radeon RX 660014 spec wins — AMD Radeon RX 7900 GRE
InnoReviews verdict
AMD Radeon RX 7900 GRE wins this graphics card face-off, 55.9 to 40, pulling ahead mainly in compute (+24) and rasterization (+23). 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
- 49% lower TDP: 132 W vs 260 W
- 11% higher Boost clock: 2,491 MHz vs 2,245 MHz
- Lower launch price: $329 vs $549
Reasons to pick the AMD Radeon RX 7900 GRE
- Stronger rasterization score: 53 vs 30
- Stronger Ray Tracing score: 39 vs 23
- Stronger compute score: 60 vs 37
- 207% higher 3DMark Speed Way: 4,600 vs 1,500
- 186% higher Shading units: 5,120 vs 1,792
General
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 GRE |
|---|---|---|
| Announced | 2021 | 2023 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 7 nm | 5 nm+29% |
| TDP | 132 W+49% | 260 W |
| Power connector | 1x 8-pin | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 GRE |
|---|---|---|
| Shading units | 1,792 | 5,120+186% |
| RT cores | 28 | 80+186% |
| Tensor / AI cores | — | 160 |
| Base clock | 1,626 MHz | 1,880 MHz+16% |
| Boost clock | 2,491 MHz+11% | 2,245 MHz |
Memory
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 GRE |
|---|---|---|
| VRAM | 8 GB | 16 GB+100% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 128 bit | 256 bit+100% |
| Bandwidth | 224 GB/s | 576 GB/s+157% |
Benchmarks
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 GRE |
|---|---|---|
| 3DMark Time Spy | 8,400Bottom 28% | 22,700+170%Top 15% |
| 3DMark Speed Way | 1,500Bottom 4% | 4,600+207%Top 38% |
| PassMark G3D | 13,900Bottom 31% | 25,600+84%Top 19% |
| 1080p Ultra | 76 fpsBottom 12% | 165 fps+117%Top 28% |
| 1440p Ultra | 53 fpsBottom 12% | 124 fps+134%Top 26% |
| 4K Ultra | 27 fpsBottom 12% | 70 fps+159%Top 23% |
Features
| Spec | AMD Radeon RX 6600 | AMD Radeon RX 7900 GRE |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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