NVIDIA Tesla K40t vs NVIDIA Tesla M40
What is the difference between NVIDIA Tesla K40t and NVIDIA Tesla M40. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK110B | GPU Name | GM200 |
| Kepler | Architecture | Maxwell 2.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 7,080 million | Transistors | 8,000 million |
| 561 mm² | Die Size | 601 mm² |
Graphics Card
| Nov 22nd, 2013 | Release Date | Nov 10th, 2015 |
| Tesla (Kxx) | Family | Tesla (Mxx) |
| End-of-life | Production | Active |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 12 GB | Memory Size | 12 GB |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 384 bit |
| 288.4 GB/s | Bandwidth | 288.4 GB/s |
Performance
| 52.56 GPixel/s | Pixel fillrate | 106.9 GPixel/s |
| 210.2 GTexel/s | Texture fillrate | 213.9 GTexel/s |
| 5.046 TFLOPS | FP32 (float) performance | 6.844 TFLOPS |
| 1.682 TFLOPS (1:3) | FP64 (double) performance | 213.9 GFLOPS (1:32) |
Clock Speeds
| 745 MHz | Base Clock | 948 MHz |
| 876 MHz | Boost Clock | 1114 MHz |
| 1502 MHz 6 Gbps effective | Memory Clock | 1502 MHz 6 Gbps effective |
Render Config
| 2880 | Shading Units | 3072 |
| 240 | TMUs | 192 |
| 48 | ROPs | 96 |
| 16 KB (per SMX) | L1 Cache | 48 KB (per SMM) |
| 1536 KB | L2 Cache | 3 MB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 267 mm 10.5 inches | Length | 267 mm 10.5 inches |
| 245 W | Thermal design power (TDP) | 250 W |
| 550 W | Suggested PSU | 600 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 12 (12_1) |
| 4.6 | OpenGL | 4.6 |
| 3.0 | OpenCL | 3.0 |
| 1.1 | Vulkan | 1.1 |
| 5.1 | Shader Model | 6.4 |
| 3.5 | CUDA | 5.2 |