Comparison of NVIDIA Tesla M40 and NVIDIA Tesla K40st [S]ave
| Attribute |  NVIDIA Tesla K40st × |  NVIDIA Tesla M40 × |
|---|---|---|
| GPU | ||
| 1↑Release year (year) | 2013 | 2015 |
| GPU brand | Nvidia | Nvidia |
| GPU name | GK110B | GM200 |
| Clock speed (MHz) | 745 | 948 |
| Turbo clock speed (MHz) | - | 1,114 |
| Is dual GPU | - | - |
| Model | NVIDIA Tesla K40st | NVIDIA Tesla M40 |
| Memory | ||
| Memory (MB) | 12,288 | 12,288 |
| Memory bandwidth (GB/s) | 288.4 | 288 |
| Memory bus (bit) | 384 | 384 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,502 | 1,500 |
| Effective memory clock speed (MHz) | 6,008 | 6,000 |
| Noise and power | ||
| TDP (W) | 245 | 250 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 44.7 | 91 |
| Render output processors | 48 | 96 |
| Texture mapping units | 240 | 192 |
| Shading units | 2,880 | 3,072 |
| Floating-point performance (GFLOPS) | 4,291 | 5,825 |
| Texture rate (GTexel/s) | 178.8 | 182 |
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