Product Compare
NVIDIA Tesla K80 vs NVIDIA Tesla K40t
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2014 | Nov 2013 |
| Generation | Tesla | Tesla Kepler |
| Type | Professional | Professional |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 562 MHz | 745 MHz |
| Boost Clock | 824 MHz | 876 MHz |
| Memory Clock | 1253 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 12GB | 12GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 240.6GB/s | 288.4GB/s |
| Render Config | ||
| Shading Units | 2496 | 2880 |
| TMUs | 208 | 240 |
| ROPs | 48 | 48 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per SMX) |
| L2 Cache | 1536 KB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 42.85 GPixel/s | 52.56 GPixel/s |
| Texture Rate | 171.4 GTexel/s | 210.2 GTexel/s |
| FP32 (float) | 4.113 TFLOPS | 5.046 TFLOPS |
| FP64 (double) | 1371 GFLOPS | 1.682 TFLOPS |
| Graphics Processor | ||
| GPU Name | GK210 | GK110B |
| GPU Variant | GK210-885-A1 | |
| Architecture | Kepler 2.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 7.1 billion | 7.08 billion |
| Die Size | 561 mm² | 561 mm² |
| Board Design | ||
| TDP | 300W | 245W |
| Suggested PSU | 700 W | 550 W |
| Outputs | No outputs | No outputs |
| Power Connectors | 1x 8-pin | |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.2.175 |
| CUDA | 3.7 | 3.5 |
| Shader Model | 5.1 | 6.5 (5.1) |