Product Compare
AMD Radeon RX 640 Mobile vs NVIDIA RTX A4000 Mobile
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | May 2019 | Apr 2021 |
| Generation | Mobility Radeon | Ampere-MW |
| Type | Mobile | Professional |
| Bus Interface | PCIe 3.0 x8 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 1082 MHz | 1140 MHz |
| Boost Clock | 1218 MHz | 1680 MHz |
| Memory Clock | 1500 MHz | 1500 MHz |
| Memory | ||
| Memory Size | 2GB | 8GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bus | 64bit | 256bit |
| Bandwidth | 48.00GB/s | 384.0GB/s |
| Render Config | ||
| Compute Units | 10 | |
| Shading Units | 640 | 5120 |
| TMUs | 40 | 160 |
| ROPs | 16 | 80 |
| L1 Cache | 16 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 512 KB | 4 MB |
| SM Count | 40 | |
| Tensor Cores | 160 | |
| RT Cores | 40 | |
| Theoretical Performance | ||
| Pixel Rate | 19.49 GPixel/s | 134.4 GPixel/s |
| Texture Rate | 48.72 GTexel/s | 268.8 GTexel/s |
| FP16 (half) | 1.559 TFLOPS | 17.20 TFLOPS |
| FP32 (float) | 1.559 TFLOPS | 17.20 TFLOPS |
| FP64 (double) | 97.44 GFLOPS | 268.8 GFLOPS |
| Graphics Processor | ||
| GPU Name | Polaris 23 | GA104 |
| GPU Variant | Polaris 23 XT | |
| Architecture | GCN 4.0 | Ampere |
| Foundry | GlobalFoundries | Samsung |
| Process Size | 14 nm | 8 nm |
| Transistors | 2.2 billion | 17.4 billion |
| Die Size | 103 mm² | 392 mm² |
| Board Design | ||
| TDP | 50W | 115W |
| Outputs | No outputs | Portable Device Dependent |
| Power Connectors | None | None |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.3 |
| Shader Model | 6.4 | 6.8 |
| CUDA | 8.6 | |