Product Compare
AMD Radeon RX 7900 XT vs AMD Radeon RX 6800 XT
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2022 | Oct 2020 |
| Generation | Navi III | Navi II |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 1387 MHz | 1825 MHz |
| Boost Clock | 2394 MHz | 2250 MHz |
| Memory Clock | 2500 MHz | 2000 MHz |
| Memory | ||
| Memory Size | 20GB | 16GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 320bit | 256bit |
| Bandwidth | 800.0GB/s | 512.0GB/s |
| Render Config | ||
| Compute Units | 84 | 72 |
| Shading Units | 5376 | 4608 |
| TMUs | 336 | 288 |
| ROPs | 192 | 128 |
| RT Cores | 84 | 72 |
| L1 Cache | 256 KB per Array | 128 KB per Array |
| L2 Cache | 6 MB | 4 MB |
| L3 Cache | 80 MB | 128 MB |
| Theoretical Performance | ||
| Pixel Rate | 459.6 GPixel/s | 288.0 GPixel/s |
| Texture Rate | 804.4 GTexel/s | 648.0 GTexel/s |
| FP16 (half) | 103.0 TFLOPS | 41.47 TFLOPS |
| FP32 (float) | 51.48 TFLOPS | 20.74 TFLOPS |
| FP64 (double) | 1.609 TFLOPS | 1296 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 31 | Navi 21 |
| GPU Variant | Navi 31 XT(215-145000156) | Navi 21 XT(215-121000177) |
| Architecture | RDNA 3.0 | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 7 nm |
| Transistors | 57.7 billion | 26.8 billion |
| Die Size | 529 mm² | 520 mm² |
| Board Design | ||
| TDP | 300W | 300W |
| Suggested PSU | 700 W | 700 W |
| Outputs | 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C | 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.2 | 2.1 |
| Vulkan | 1.3 | 1.3 |
| Shader Model | 6.8 | 6.5 |
| Benchmarks | ||
| 3DMark Time Spy | 26829 | 19329 |