| Attribute | NVIDIA Tesla K40st × | NVIDIA Quadro M4000 (June, 2015) × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2015 |
| GPU brand | Nvidia | Nvidia |
| GPU name | GK110B | GM204 |
| Clock speed (MHz) | 745 | 773 |
| Is dual GPU | - | - |
| Model | NVIDIA Tesla K40st | NVIDIA Quadro M4000 (June, 2015) |
| Memory | ||
| Memory (MB) | 12,288 | 8,192 |
| Memory bandwidth (GB/s) | 288.4 | 192.3 |
| Memory bus (bit) | 384 | 256 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,502 | 1,502 |
| Effective memory clock speed (MHz) | 6,008 | 6,008 |
| Noise and power | ||
| TDP (W) | 245 | 120 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 44.7 | 49.5 |
| Render output processors | 48 | 64 |
| Texture mapping units | 240 | 104 |
| Shading units | 2,880 | 1,664 |
| Floating-point performance (GFLOPS) | 4,291 | 2,572 |
| Texture rate (GTexel/s) | 178.8 | 80.4 |