| Spec | RX 6400 | GTX 1660 |
|---|---|---|
| Performance | ||
| FP32 Performance | 3.56 TFLOPS | 5.03 TFLOPS+29% |
| FP16 Performance | 7.13 TFLOPS | 10.05 TFLOPS+29% |
| Shader Units | 768 | 1,408+45% |
| Boost Clock | 2,321 MHz+30% | 1,785 MHz |
| Base Clock | 1,923 MHz+26% | 1,530 MHz |
| Memory | ||
| VRAM | 4 GB | 6 GB+33% |
| VRAM Type | ||
| GDDR6 |
| GDDR5 |
| Memory Bus | 64-bit | 192-bit+67% |
| Memory Clock | 2,000 MHz | 2,001 MHz |
| Memory Bandwidth | 128 | 192.1+33% |
| Power | ||
| TDP | 53W+56% | 120W |
| Recommended PSU | 250W+17% | 300W |
| Power Connector | N/A | 1x 8-pin |
| Architecture | ||
| Form Factor | desktop | desktop |
| Generation | Navi II(RX 6000) | GeForce 16 |
| Architecture | RDNA 2.0 | Turing |
| GPU Chip | Navi 24 | TU116 |
| Process Node | 6 nm TSMC | 12 nm TSMC |
| Transistors | 5.4+18% | 6.6 |
| Die Size | 107+62% | 284 |
| Features | ||
| Ray Tracing | RT Cores (12) | N/A |
| Ray Accelerators | 12 | N/A |
| DLSS Version | N/A | 2 |
| FSR Version | 2 | N/A |
| Connectivity | ||
| Display Outputs | 1x HDMI 2.1, 1x DisplayPort 1.4a | 1x DVI, 1x HDMI 2.0, 1x DisplayPort 1.4a |
| PCIe Interface | PCIe 4.0 x4 | PCIe 3.0 x16 |
| Physical | ||
| Card Length | N/A | 229 mm |
| Slot Size | Single-slot | Dual-slot |
| Price | ||
| Release Date | 2022-01-19 | 2019-03-14 |
