AMD Radeon RX 6400 vs AMD Radeon RX 7900 XTX
22.4Rasterization62.4
—Ray Tracing47.7
25.4Memoryspec-based74
95.6Efficiencyspec-based67
24.1Compute68.9
2 spec wins — AMD Radeon RX 64009 spec wins — AMD Radeon RX 7900 XTX
InnoReviews verdict
AMD Radeon RX 7900 XTX wins this graphics card face-off, 62.9 to 37, pulling ahead mainly in compute (+45) and rasterization (+40). 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
- 85% lower TDP: 53 W vs 355 W
- 10% higher Base clock: 2,039 MHz vs 1,855 MHz
- Lower launch price: $159 vs $999
Reasons to pick the AMD Radeon RX 7900 XTX
- Stronger rasterization score: 62 vs 22
- Stronger compute score: 69 vs 24
- 752% higher 3DMark Time Spy: 30,500 vs 3,579
- 700% higher Shading units: 6,144 vs 768
- 700% higher RT cores: 96 vs 12
General
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XTX |
|---|---|---|
| Announced | 2022 | 2022 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 6 nm | 5 nm+17% |
| TDP | 53 W+85% | 355 W |
| Power connector | None (PCIe-powered) | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XTX |
|---|---|---|
| Shading units | 768 | 6,144+700% |
| RT cores | 12 | 96+700% |
| Tensor / AI cores | — | 192 |
| Base clock | 2,039 MHz+10% | 1,855 MHz |
| Boost clock | 2,321 MHz | 2,500 MHz+8% |
Memory
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XTX |
|---|---|---|
| VRAM | 4 GB | 24 GB+500% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 64 bit | 384 bit+500% |
| Bandwidth | 128 GB/s | 960 GB/s+650% |
Benchmarks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XTX |
|---|---|---|
| 3DMark Time Spy | 3,579Bottom 4% | 30,500+752%Top 5% |
| 3DMark Speed Way | — | 6,200Top 18% |
| PassMark G3D | 7,758Bottom 7% | 30,700+296%Top 5% |
| 1080p Ultra | — | 188 fpsTop 15% |
| 1440p Ultra | — | 147 fpsTop 13% |
| 4K Ultra | — | 86 fpsTop 13% |
Features
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7900 XTX |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
Related comparisons
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