Product Compare
AMD Radeon RX 640 Mobile vs NVIDIA B300
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | May 2019 | Sep 2025 |
| Generation | Mobility Radeon | Server Blackwell |
| Type | Mobile | Desktop |
| Bus Interface | PCIe 3.0 x8 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Base Clock | 1082 MHz | 1665 MHz |
| Boost Clock | 1218 MHz | 2032 MHz |
| Memory Clock | 1500 MHz | 2000 MHz |
| Memory | ||
| Memory Size | 2GB | 144GB |
| Memory Type | GDDR5 | HBM3e |
| Memory Bus | 64bit | 4096bit |
| Bandwidth | 48.00GB/s | 4.10TB/s |
| Render Config | ||
| Compute Units | 10 | |
| Shading Units | 640 | 18944 |
| TMUs | 40 | 592 |
| ROPs | 16 | 24 |
| L1 Cache | 16 KB (per CU) | 256 KB (per SM) |
| L2 Cache | 512 KB | 50 MB |
| SM Count | 148 | |
| Tensor Cores | 592 | |
| Theoretical Performance | ||
| Pixel Rate | 19.49 GPixel/s | 48.77 GPixel/s |
| Texture Rate | 48.72 GTexel/s | 1202.9 GTexel/s |
| FP16 (half) | 1.559 TFLOPS | 1231.8 TFLOPS |
| FP32 (float) | 1.559 TFLOPS | 76.99 TFLOPS |
| FP64 (double) | 97.44 GFLOPS | 1202.9 GFLOPS |
| Graphics Processor | ||
| GPU Name | Polaris 23 | GB110 |
| GPU Variant | Polaris 23 XT | |
| Architecture | GCN 4.0 | Blackwell Ultra |
| Foundry | GlobalFoundries | TSMC |
| Process Size | 14 nm | 5 nm |
| Transistors | 2.2 billion | 104 billion |
| Die Size | 103 mm² | Unknown |
| Board Design | ||
| TDP | 50W | 1400W |
| Outputs | No outputs | No outputs |
| Power Connectors | None | |
| Suggested PSU | 1800 W | |
| Graphics Features | ||
| DirectX | 12 (12_0) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | N/A |
| Shader Model | 6.4 | N/A |
| CUDA | 10.3 | |