Product Compare
AMD Radeon Instinct MI300X vs NVIDIA GeForce RTX 5090 Mobile
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Dec 2023 | Mar 2025 |
| Generation | Radeon Instinct | GeForce 50 Mobile |
| Type | Professional | Mobile |
| Bus Interface | PCIe 5.0 x16 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Base Clock | 1000 MHz | 990 MHz |
| Boost Clock | 2100 MHz | 1515 MHz |
| Memory Clock | 1300 MHz | 1750 MHz |
| Memory | ||
| Memory Size | 192GB | 24GB |
| Memory Type | HBM3 | GDDR7 |
| Memory Bus | 8192bit | 256bit |
| Bandwidth | 5.32TB/s | 896.0GB/s |
| Render Config | ||
| Compute Units | 304 | |
| Shading Units | 19456 | 10496 |
| TMUs | 1216 | 328 |
| ROPs | 0 | 112 |
| Tensor Cores | 1216 | 328 |
| L1 Cache | 16 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 16 MB | 64 MB |
| L3 Cache | 256 MB | |
| SM Count | 82 | |
| RT Cores | 82 | |
| Theoretical Performance | ||
| Pixel Rate | 0 MPixel/s | 169.7 GPixel/s |
| Texture Rate | 2553.6 GTexel/s | 496.9 GTexel/s |
| FP16 (half) | 81.72 TFLOPS | 31.80 TFLOPS |
| FP32 (float) | 81.72 TFLOPS | 31.80 TFLOPS |
| FP64 (double) | 40.86 TFLOPS | 496.9 GFLOPS |
| Graphics Processor | ||
| GPU Name | Aqua Vanjaram | GB203 |
| Architecture | CDNA 3.0 | Blackwell 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 5 nm |
| Transistors | 153 billion | 45.6 billion |
| Die Size | 1017 mm² | 378 mm² |
| GPU Variant | GN22-X11-A1 | |
| Board Design | ||
| TDP | 750W | 95W |
| Suggested PSU | 1150 W | 550 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 | 1.4 |
| Shader Model | N/A | 6.8 |
| CUDA | 12.0 | |