AMD Radeon RX 6400 vs AMD Radeon RX 7900 XT
22.4Rasterization56.5
—Ray Tracing43.5
25.4Memoryspec-based67
95.6Efficiencyspec-based73.8
24.1Compute63.8
1 spec wins — AMD Radeon RX 64009 spec wins — AMD Radeon RX 7900 XT
InnoReviews verdict
AMD Radeon RX 7900 XT wins this graphics card face-off, 59.1 to 37, pulling ahead mainly in compute (+40) and rasterization (+34). AMD Radeon RX 6400 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 6400
- 82% lower TDP: 53 W vs 300 W
- Lower launch price: $159 vs $899
Reasons to pick the AMD Radeon RX 7900 XT
- Stronger rasterization score: 57 vs 22
- Stronger compute score: 64 vs 24
- 640% higher 3DMark Time Spy: 26,500 vs 3,579
- 600% higher Shading units: 5,376 vs 768
- 600% higher RT cores: 84 vs 12
General
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| Announced | 2022 | 2022 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 6 nm | 5 nm+17% |
| TDP | 53 W+82% | 300 W |
| Power connector | None (PCIe-powered) | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| Shading units | 768 | 5,376+600% |
| RT cores | 12 | 84+600% |
| Tensor / AI cores | — | 168 |
| Base clock | 2,039 MHz | — |
| Boost clock | 2,321 MHz | 2,400 MHz+3% |
Memory
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| VRAM | 4 GB | 20 GB+400% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 64 bit | 320 bit+400% |
| Bandwidth | 128 GB/s | 800 GB/s+525% |
Benchmarks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| 3DMark Time Spy | 3,579Bottom 4% | 26,500+640%Top 12% |
| 3DMark Speed Way | — | 5,400Top 29% |
| PassMark G3D | 7,758Bottom 7% | 27,800+258%Top 10% |
| 1080p Ultra | — | 168 fpsTop 25% |
| 1440p Ultra | — | 130 fpsTop 19% |
| 4K Ultra | — | 75 fpsTop 19% |
Features
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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