Product Compare
NVIDIA B300 vs NVIDIA Tesla K20m
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2025 | Jan 2013 |
| Generation | Server Blackwell | Tesla |
| Type | Desktop | Professional |
| Bus Interface | PCIe 5.0 x16 | PCIe 2.0 x16 |
| Clock Speeds | ||
| Base Clock | 1665 MHz | |
| Boost Clock | 2032 MHz | |
| Memory Clock | 2000 MHz | 1300 MHz |
| Memory | ||
| Memory Size | 144GB | 5GB |
| Memory Type | HBM3e | GDDR5 |
| Memory Bus | 4096bit | 320bit |
| Bandwidth | 4.10TB/s | 208.0GB/s |
| Render Config | ||
| SM Count | 148 | |
| Shading Units | 18944 | 2496 |
| TMUs | 592 | 208 |
| ROPs | 24 | 40 |
| Tensor Cores | 592 | |
| L1 Cache | 256 KB (per SM) | 16 KB (per SMX) |
| L2 Cache | 50 MB | 1280 KB |
| Theoretical Performance | ||
| Pixel Rate | 48.77 GPixel/s | 36.71 GPixel/s |
| Texture Rate | 1202.9 GTexel/s | 146.8 GTexel/s |
| FP16 (half) | 1231.8 TFLOPS | |
| FP32 (float) | 76.99 TFLOPS | 3.524 TFLOPS |
| FP64 (double) | 1202.9 GFLOPS | 1175 GFLOPS |
| Graphics Processor | ||
| GPU Name | GB110 | GK110 |
| Architecture | Blackwell Ultra | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 28 nm |
| Transistors | 104 billion | 7.08 billion |
| Die Size | Unknown | 561 mm² |
| Board Design | ||
| TDP | 1400W | 225W |
| Suggested PSU | 1800 W | 550 W |
| Outputs | No outputs | No outputs |
| Power Connectors | 1x 6-pin + 1x 8-pin | |
| Graphics Features | ||
| DirectX | N/A | 12 (11_0) |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | N/A | 1.1 |
| CUDA | 10.3 | 3.5 |
| Shader Model | N/A | 5.1 |