AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 4090
49.6Rasterization73.5
35.2Ray Tracing68.5
56.8Memory74.6
71.6Efficiency55.2
60.9Compute86.3
1 spec wins — AMD Radeon RX 6900 XT15 spec wins — NVIDIA GeForce RTX 4090
InnoReviews verdict
NVIDIA GeForce RTX 4090 wins this graphics card face-off, 71.8 to 52.8, pulling ahead mainly in Ray Tracing (+33) and compute (+25). AMD Radeon RX 6900 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 6900 XT
- Stronger efficiency score: 72 vs 55
- 33% lower TDP: 300 W vs 450 W
- Lower launch price: $999 vs $1,599
Reasons to pick the NVIDIA GeForce RTX 4090
- Stronger rasterization score: 74 vs 50
- Stronger Ray Tracing score: 69 vs 35
- Stronger memory score: 75 vs 57
- Stronger compute score: 86 vs 61
- 220% higher Shading units: 16,384 vs 5,120
General
| Spec | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Announced | 2020 | 2022 |
| Architecture | RDNA 2 | Ada Lovelace |
| Process | 7 nm | 5 nm+29% |
| TDP | 300 W+33% | 450 W |
| Power connector | 2x 8-pin | 1x 16-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Shading units | 5,120 | 16,384+220% |
| RT cores | 80 | 128+60% |
| Tensor / AI cores | — | 512 |
| Base clock | 1,825 MHz | 2,235 MHz+22% |
| Boost clock | 2,250 MHz | 2,520 MHz+12% |
Memory
| Spec | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| VRAM | 16 GB | 24 GB+50% |
| VRAM type | GDDR6 | GDDR6X |
| Bus width | 256 bit | 384 bit+50% |
| Bandwidth | 512 GB/s | 1,008 GB/s+97% |
Benchmarks
| Spec | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| 3DMark Time Spy | 20,300 | 36,000+77% |
| 3DMark Speed Way | 3,850 | 10,100+162% |
| PassMark G3D | 26,100 | 38,500+48% |
| 1080p Ultra | 160 fps | 225 fps+41% |
| 1440p Ultra | 118 fps | 180 fps+53% |
| 4K Ultra | 64 fps | 112 fps+75% |
Features
| Spec | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Upscaling | FSR 3 | DLSS 4 (no MFG) |
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