Product Compare
AMD Radeon Instinct MI455X vs NVIDIA RTX A5000 Mobile
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jul 2026 | Apr 2021 |
| Generation | Radeon Instinct | Quadro Ampere-M |
| Type | Desktop | Professional |
| Bus Interface | PCIe 6.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 1000 MHz | 900 MHz |
| Boost Clock | 2400 MHz | 1575 MHz |
| Memory Clock | 1900 MHz | 1750 MHz |
| Memory | ||
| Memory Size | 432GB | 16GB |
| Memory Type | HBM4 | GDDR6 |
| Memory Bus | 24576bit | 256bit |
| Bandwidth | 23.3TB/s | 448.0GB/s |
| Render Config | ||
| Compute Units | 256 | |
| Shading Units | 32768 | 6144 |
| TMUs | 1024 | 192 |
| ROPs | 0 | 96 |
| L1 Cache | 32 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 192 MB | 4 MB |
| SM Count | 48 | |
| Tensor Cores | 192 | |
| RT Cores | 48 | |
| Theoretical Performance | ||
| Pixel Rate | 0 MPixel/s | 151.2 GPixel/s |
| Texture Rate | 2457.6 GTexel/s | 302.4 GTexel/s |
| FP16 (half) | 157.3 TFLOPS | 19.35 TFLOPS |
| FP32 (float) | 157.3 TFLOPS | 19.35 TFLOPS |
| FP64 (double) | 2.458 TFLOPS | 302.4 GFLOPS |
| Graphics Processor | ||
| GPU Name | MI450 256CU | GA104 |
| Architecture | CDNA 5.0 | Ampere |
| Foundry | TSMC | Samsung |
| Process Size | 2 nm | 8 nm |
| Transistors | 320 billion | 17.4 billion |
| Die Size | Unknown | 392 mm² |
| Board Design | ||
| TDP | 2300W | 150W |
| Suggested PSU | 2700 W | |
| Outputs | No outputs | Portable Device Dependent |
| Power Connectors | None | None |
| Graphics Features | ||
| DirectX | N/A | 12 Ultimate (12_2) |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | N/A | 1.3 |
| Shader Model | N/A | 6.7 |
| CUDA | 8.6 | |