AMD Radeon RX 6400 vs AMD Radeon RX 7800 XT
22.4Rasterization49.8
—Ray Tracing36
25.4Memoryspec-based59.2
95.6Efficiencyspec-based78.4
24.1Compute56.1
1 spec wins — AMD Radeon RX 640010 spec wins — AMD Radeon RX 7800 XT
InnoReviews verdict
AMD Radeon RX 7800 XT wins this graphics card face-off, 53.7 to 37, pulling ahead mainly in compute (+32) and rasterization (+27). 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
- 80% lower TDP: 53 W vs 263 W
- Lower launch price: $159 vs $499
Reasons to pick the AMD Radeon RX 7800 XT
- Stronger rasterization score: 50 vs 22
- Stronger compute score: 56 vs 24
- 462% higher 3DMark Time Spy: 20,100 vs 3,579
- 400% higher Shading units: 3,840 vs 768
- 400% higher RT cores: 60 vs 12
General
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7800 XT |
|---|---|---|
| Announced | 2022 | 2023 |
| Architecture | RDNA 2 | RDNA 3 |
| Process | 6 nm | 5 nm+17% |
| TDP | 53 W+80% | 263 W |
| Power connector | None (PCIe-powered) | 2x 8-pin |
Cores & Clocks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7800 XT |
|---|---|---|
| Shading units | 768 | 3,840+400% |
| RT cores | 12 | 60+400% |
| Tensor / AI cores | — | 120 |
| Base clock | 2,039 MHz | — |
| Boost clock | 2,321 MHz | 2,430 MHz+5% |
Memory
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7800 XT |
|---|---|---|
| VRAM | 4 GB | 16 GB+300% |
| VRAM type | GDDR6 | GDDR6 |
| Bus width | 64 bit | 256 bit+300% |
| Bandwidth | 128 GB/s | 624 GB/s+388% |
Benchmarks
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7800 XT |
|---|---|---|
| 3DMark Time Spy | 3,579Bottom 4% | 20,100+462%Top 24% |
| 3DMark Speed Way | — | 4,000Top 47% |
| PassMark G3D | 7,758Bottom 7% | 24,000+209%Top 26% |
| 1080p Ultra | — | 157 fpsTop 36% |
| 1440p Ultra | — | 117 fpsTop 38% |
| 4K Ultra | — | 66 fpsTop 32% |
Features
| Spec | AMD Radeon RX 6400 | AMD Radeon RX 7800 XT |
|---|---|---|
| Upscaling | FSR 3 | FSR 3 |
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