| Spec | RX 7900 GRE | RTX 4090 |
|---|---|---|
| Performance | ||
| FP32 Performance | 45.98 TFLOPS | 82.58 TFLOPS+44% |
| FP16 Performance | 91.96 TFLOPS+11% | 82.58 TFLOPS |
| Shader Units | 5,120 | 16,384+69% |
| Boost Clock | 2,245 MHz | 2,520 MHz+11% |
| Base Clock | 1,287 MHz | 2,235 MHz+42% |
| Memory | ||
| VRAM | 16 GB | 24 GB+33% |
| VRAM Type | GDDR6 | |
| GDDR6X |
| Memory Bus | 256-bit | 384-bit+33% |
| Memory Clock | 2,250 MHz+71% | 1,313 MHz |
| Memory Bandwidth | 576 | 1,010+43% |
| Power | ||
| TDP | 260W+42% | 450W |
| Recommended PSU | 600W+29% | 850W |
| Power Connector | 2x 8-pin | 1x 16-pin |
| Architecture | ||
| Form Factor | desktop | desktop |
| Generation | Navi III(RX 7000) | GeForce 40 |
| Architecture | RDNA 3.0 | Ada Lovelace |
| GPU Chip | Navi 31 | AD102 |
| Process Node | 5 nm TSMC | 5 nm TSMC |
| Transistors | 57.7+24% | 76.3 |
| Die Size | 529+13% | 609 |
| Features | ||
| Ray Tracing | RT Cores (80) | RT Cores (128) |
| Tensor Cores | N/A | 512 |
| Ray Accelerators | 80 | N/A |
| DLSS Version | N/A | 3.5 |
| FSR Version | 3.1 | N/A |
| AV1 Encoding | Yes | Yes |
| Connectivity | ||
| Display Outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C | 1x HDMI 2.1, 3x DisplayPort 1.4a |
| PCIe Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Physical | ||
| Card Length | 276 mm+9% | 304 mm |
| Slot Size | Dual-slot | Triple-slot |
| Price | ||
| Release Date | 2023-07-27 | 2022-09-20 |
