AMD Radeon RX 6600 XT vs AMD Radeon RX 7900 GRE
32.6Rasterization52.7
24.5Ray Tracing39.2
38.7Memory58.2
88.9Efficiency78.7
40.5Compute60.2
3 spec wins — AMD Radeon RX 6600 XT13 spec wins — AMD Radeon RX 7900 GRE
InnoReviews verdict
AMD Radeon RX 7900 GRE wins this graphics card face-off, 55.9 to 41.5, pulling ahead mainly in rasterization (+20) and compute (+20). 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 79
- 38% lower TDP: 160 W vs 260 W
- 15% higher Boost clock: 2,589 MHz vs 2,245 MHz
- Lower launch price: $379 vs $549
Reasons to pick the AMD Radeon RX 7900 GRE
- Stronger rasterization score: 53 vs 33
- Stronger Ray Tracing score: 39 vs 25
- Stronger memory score: 58 vs 39
- Stronger compute score: 60 vs 41
- 150% higher Shading units: 5,120 vs 2,048
General
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 GRE |
|---|---|---|
| Announced | 2021 | 2023 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 7 nm | 5 nm+29% |
| TDP | 160 W+38% | 260 W |
| Power connector | 1x 8-pin | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 GRE |
|---|---|---|
| Shading units | 2,048 | 5,120+150% |
| RT cores | 32 | 80+150% |
| Tensor / AI cores | — | 160 |
| Base clock | 1,968 MHz+5% | 1,880 MHz |
| Boost clock | 2,589 MHz+15% | 2,245 MHz |
Memory
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 GRE |
|---|---|---|
| VRAM | 8 GB | 16 GB+100% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 128 bit | 256 bit+100% |
| Bandwidth | 256 GB/s | 576 GB/s+125% |
Benchmarks
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 GRE |
|---|---|---|
| 3DMark Time Spy | 10,200 | 22,700+123% |
| 3DMark Speed Way | 1,850 | 4,600+149% |
| PassMark G3D | 16,000 | 25,600+60% |
| 1080p Ultra | 88 fps | 165 fps+88% |
| 1440p Ultra | 62 fps | 124 fps+100% |
| 4K Ultra | 31 fps | 70 fps+126% |
Features
| Spec | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 GRE |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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