Product Compare
AMD Radeon RX 6900 XT vs AMD Radeon Instinct MI300X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Oct 2020 | Dec 2023 |
| Generation | Navi II | Radeon Instinct |
| Type | Desktop | Professional |
| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Base Clock | 1825 MHz | 1000 MHz |
| Boost Clock | 2250 MHz | 2100 MHz |
| Memory Clock | 2000 MHz | 1300 MHz |
| Memory | ||
| Memory Size | 16GB | 192GB |
| Memory Type | GDDR6 | HBM3 |
| Memory Bus | 256bit | 8192bit |
| Bandwidth | 512.0GB/s | 5.32TB/s |
| Render Config | ||
| Compute Units | 80 | 304 |
| Shading Units | 5120 | 19456 |
| TMUs | 320 | 1216 |
| ROPs | 128 | 0 |
| RT Cores | 80 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 4 MB | 16 MB |
| L3 Cache | 128 MB | 256 MB |
| Tensor Cores | 1216 | |
| Theoretical Performance | ||
| Pixel Rate | 288.0 GPixel/s | 0 MPixel/s |
| Texture Rate | 720.0 GTexel/s | 2553.6 GTexel/s |
| FP16 (half) | 46.08 TFLOPS | 81.72 TFLOPS |
| FP32 (float) | 23.04 TFLOPS | 81.72 TFLOPS |
| FP64 (double) | 1440.0 GFLOPS | 40.86 TFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 21 | Aqua Vanjaram |
| GPU Variant | Navi 21 XTX(215-121000167) | |
| Architecture | RDNA 2.0 | CDNA 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 7 nm | 5 nm |
| Transistors | 26.8 billion | 153 billion |
| Die Size | 520 mm² | 1017 mm² |
| Board Design | ||
| TDP | 300W | 750W |
| Suggested PSU | 700 W | 1150 W |
| Outputs | 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C | No outputs |
| Power Connectors | 2x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.4 | N/A |
| Shader Model | 6.8 | N/A |