Product Compare
NVIDIA RTX PRO 4000 Blackwell SFF vs NVIDIA Tesla K20Xm
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Aug 2025 | Nov 2012 |
| Generation | Blackwell PRO W | Tesla |
| Type | Desktop | Professional |
| Bus Interface | PCIe 5.0 x8 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 577 MHz | |
| Boost Clock | 1432 MHz | |
| Memory Clock | 1125 MHz | 1300 MHz |
| Memory | ||
| Memory Size | 24GB | 6GB |
| Memory Type | GDDR7 | GDDR5 |
| Memory Bus | 192bit | 384bit |
| Bandwidth | 432.0GB/s | 249.6GB/s |
| Render Config | ||
| SM Count | 70 | |
| Shading Units | 8960 | 2688 |
| TMUs | 280 | 224 |
| ROPs | 96 | 48 |
| Tensor Cores | 280 | |
| RT Cores | 70 | |
| L1 Cache | 128 KB (per SM) | 16 KB (per SMX) |
| L2 Cache | 48 MB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 137.5 GPixel/s | 40.99 GPixel/s |
| Texture Rate | 401.0 GTexel/s | 164.0 GTexel/s |
| FP16 (half) | 25.66 TFLOPS | |
| FP32 (float) | 25.66 TFLOPS | 3.935 TFLOPS |
| FP64 (double) | 401.0 GFLOPS | 1312 GFLOPS |
| Graphics Processor | ||
| GPU Name | GB203 | GK110 |
| Architecture | Blackwell 2.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 28 nm |
| Transistors | 45.6 billion | 7.08 billion |
| Die Size | 378 mm² | 561 mm² |
| Board Design | ||
| TDP | 70W | 235W |
| Suggested PSU | 250 W | 550 W |
| Outputs | 4x mini-DisplayPort 2.1b | No outputs |
| Power Connectors | None | |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.4 | 1.1 |
| CUDA | 12.0 | 3.5 |
| Shader Model | 6.8 | 5.1 |