| Spec | RX 580 | RX 6600 XT |
|---|---|---|
| Performance | ||
| FP32 Performance | 6.17 TFLOPS | 10.6 TFLOPS+42% |
| FP16 Performance | 6.17 TFLOPS | 21.21 TFLOPS+71% |
| Stream Processors | 2,304+13% | 2,048 |
| Boost Clock | 1,340 MHz | 2,589 MHz+48% |
| Base Clock | 1,257 MHz | 1,968 MHz+36% |
| Memory | ||
| VRAM | 8 GB | 8 GB |
| VRAM Type | GDDR5 | GDDR6 |
| Memory Bus | 256-bit+100% | 128-bit |
| Memory Clock | 2,000 MHz | 2,000 MHz |
| Memory Bandwidth | 256 | 256 |
| Power | ||
| TDP | 185W | 160W+16% |
| Recommended PSU | 450W | 450W |
| Power Connector | 1x 8-pin | 1x 8-pin |
| Architecture | ||
| Form Factor | desktop | desktop |
| Generation | Polaris(RX 500) | Navi II(RX 6000) |
| Architecture | GCN 4.0 | RDNA 2.0 |
| GPU Chip | Polaris 20 | Navi 23 |
| Process Node | 14 nm GlobalFoundries | 7 nm TSMC |
| Transistors | 5.7+48% | 11.06 |
| Die Size | 232+2% | 237 |
| Features | ||
| Ray Tracing | N/A | RT Cores (32) |
| Ray Accelerators | N/A | 32 |
| 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, 3x DisplayPort 1.4a |
| PCIe Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Physical | ||
| Card Length | 241 mm | 190 mm+27% |
| Slot Size | Dual-slot | Dual-slot |
| Price | ||
| Release Date | 2017-04-18 | 2021-07-30 |
