Product Compare
AMD Radeon RX 6900 XTX vs AMD Radeon Instinct MI8
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Unknown | Dec 2016 |
| Generation | Navi II | Radeon Instinct |
| Type | Desktop | Professional |
| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 2075 MHz | |
| Boost Clock | 2435 MHz | |
| Memory Clock | 2250 MHz | 500 MHz |
| Memory | ||
| Memory Size | 16GB | 4GB |
| Memory Type | GDDR6 | HBM |
| Memory Bus | 256bit | 4096bit |
| Bandwidth | 576.0GB/s | 512.0GB/s |
| Render Config | ||
| Compute Units | 80 | 64 |
| Shading Units | 5120 | 4096 |
| TMUs | 320 | 256 |
| ROPs | 128 | 64 |
| RT Cores | 80 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 4 MB | 2 MB |
| L3 Cache | 128 MB | |
| Theoretical Performance | ||
| Pixel Rate | 311.7 GPixel/s | 64.00 GPixel/s |
| Texture Rate | 779.2 GTexel/s | 256.0 GTexel/s |
| FP16 (half) | 49.87 TFLOPS | 8.192 TFLOPS |
| FP32 (float) | 24.93 TFLOPS | 8.192 TFLOPS |
| FP64 (double) | 1.558 TFLOPS | 512.0 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 21 | Fiji |
| GPU Variant | Navi 21 XTXH(215-121000247) | Fiji XT CA(215-0862120) |
| Architecture | RDNA 2.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 7 nm | 28 nm |
| Transistors | 26.8 billion | 8.9 billion |
| Die Size | 520 mm² | 596 mm² |
| Board Design | ||
| TDP | 330W | 175W |
| Suggested PSU | 700 W | 450 W |
| Outputs | 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C | No outputs |
| Power Connectors | 2x 8-pin | 1x 8-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.3 | 1.2.170 |
| Shader Model | 6.5 | 6.5 |