Product Compare
AMD Radeon Instinct MI8 vs AMD Radeon RX 6900 XT
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Dec 2016 | Oct 2020 |
| Generation | Radeon Instinct | Navi II |
| Type | Professional | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Memory Clock | 500 MHz | 2000 MHz |
| Base Clock | 1825 MHz | |
| Boost Clock | 2250 MHz | |
| Memory | ||
| Memory Size | 4GB | 16GB |
| Memory Type | HBM | GDDR6 |
| Memory Bus | 4096bit | 256bit |
| Bandwidth | 512.0GB/s | 512.0GB/s |
| Render Config | ||
| Compute Units | 64 | 80 |
| Shading Units | 4096 | 5120 |
| TMUs | 256 | 320 |
| ROPs | 64 | 128 |
| L1 Cache | 16 KB (per CU) | 128 KB per Array |
| L2 Cache | 2 MB | 4 MB |
| RT Cores | 80 | |
| L3 Cache | 128 MB | |
| Theoretical Performance | ||
| Pixel Rate | 64.00 GPixel/s | 288.0 GPixel/s |
| Texture Rate | 256.0 GTexel/s | 720.0 GTexel/s |
| FP16 (half) | 8.192 TFLOPS | 46.08 TFLOPS |
| FP32 (float) | 8.192 TFLOPS | 23.04 TFLOPS |
| FP64 (double) | 512.0 GFLOPS | 1440.0 GFLOPS |
| Graphics Processor | ||
| GPU Name | Fiji | Navi 21 |
| GPU Variant | Fiji XT CA(215-0862120) | Navi 21 XTX(215-121000167) |
| Architecture | GCN 3.0 | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 7 nm |
| Transistors | 8.9 billion | 26.8 billion |
| Die Size | 596 mm² | 520 mm² |
| Board Design | ||
| TDP | 175W | 300W |
| Suggested PSU | 450 W | 700 W |
| Outputs | No outputs | 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2.170 | 1.4 |
| Shader Model | 6.5 | 6.8 |