| Spec | RX 590 | RX 6400 |
|---|---|---|
| Performance | ||
| FP32 Performance | 7.12 TFLOPS+100% | 3.56 TFLOPS |
| FP16 Performance | 7.12 TFLOPS | 7.13 TFLOPS |
| Stream Processors | 2,304+200% | 768 |
| Boost Clock | 1,545 MHz | 2,321 MHz+33% |
| Base Clock | 1,469 MHz | 1,923 MHz+24% |
| Memory | ||
| VRAM | 8 GB+100% | 4 GB |
| VRAM Type | GDDR5 | GDDR6 |
| Memory Bus | 256-bit+300% | 64-bit |
| Memory Clock | 2,000 MHz | 2,000 MHz |
| Memory Bandwidth | 256+100% | 128 |
| Power | ||
| TDP | 175W | 53W+230% |
| Recommended PSU | 450W | 250W+80% |
| Power Connector | 1x 8-pin | N/A |
| Architecture | ||
| Form Factor | desktop | desktop |
| Generation | Polaris(RX 500) | Navi II(RX 6000) |
| Architecture | GCN 4.0 | RDNA 2.0 |
| GPU Chip | Polaris 30 | Navi 24 |
| Process Node | 12 nm GlobalFoundries | 6 nm TSMC |
| Transistors | 5.7 | 5.4+6% |
| Die Size | 232 | 107+117% |
| Features | ||
| Ray Tracing | N/A | RT Cores (12) |
| Ray Accelerators | N/A | 12 |
| FSR Version | N/A | 2 |
| AV1 Encoding | Yes | N/A |
| Connectivity | ||
| Display Outputs | 1x HDMI 2.0b, 3x DisplayPort 1.4a | 1x HDMI 2.1, 1x DisplayPort 1.4a |
| PCIe Interface | PCIe 3.0 x16 | PCIe 4.0 x4 |
| Physical | ||
| Card Length | 241 mm | N/A |
| Slot Size | Dual-slot | Single-slot |
| Price | ||
| Release Date | 2018-11-15 | 2022-01-19 |
