AMD Radeon RX 6600 XT vs NVIDIA GeForce RTX 4090
32.6Rasterization73.5
24.5Ray Tracing68.5
38.7Memory74.6
88.9Efficiency55.2
40.5Compute86.3
2 spec wins — AMD Radeon RX 6600 XT14 spec wins — NVIDIA GeForce RTX 4090
InnoReviews verdict
NVIDIA GeForce RTX 4090 wins this graphics card face-off, 71.8 to 41.5, pulling ahead mainly in compute (+46) and Ray Tracing (+44). 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 55
- 64% lower TDP: 160 W vs 450 W
- Lower launch price: $379 vs $1,599
Reasons to pick the NVIDIA GeForce RTX 4090
- Stronger rasterization score: 74 vs 33
- Stronger Ray Tracing score: 69 vs 25
- Stronger memory score: 75 vs 39
- Stronger compute score: 86 vs 41
- 700% higher Shading units: 16,384 vs 2,048
General
| Spec | AMD Radeon RX 6600 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Announced | 2021 | 2022 |
| Architecture | RDNA 2 | Ada Lovelace |
| Process | 7 nm | 5 nm+29% |
| TDP | 160 W+64% | 450 W |
| Power connector | 1x 8-pin | 1x 16-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6600 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Shading units | 2,048 | 16,384+700% |
| RT cores | 32 | 128+300% |
| Tensor / AI cores | — | 512 |
| Base clock | 1,968 MHz | 2,235 MHz+14% |
| Boost clock | 2,589 MHz+3% | 2,520 MHz |
Memory
| Spec | AMD Radeon RX 6600 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| VRAM | 8 GB | 24 GB+200% |
| VRAM type | GDDR6 | GDDR6X |
| Bus width | 128 bit | 384 bit+200% |
| Bandwidth | 256 GB/s | 1,008 GB/s+294% |
Benchmarks
| Spec | AMD Radeon RX 6600 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| 3DMark Time Spy | 10,200 | 36,000+253% |
| 3DMark Speed Way | 1,850 | 10,100+446% |
| PassMark G3D | 16,000 | 38,500+141% |
| 1080p Ultra | 88 fps | 225 fps+156% |
| 1440p Ultra | 62 fps | 180 fps+190% |
| 4K Ultra | 31 fps | 112 fps+261% |
Features
| Spec | AMD Radeon RX 6600 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Upscaling | FSR 3 | DLSS 4 (no MFG) |
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