NVIDIA Tesla C2070 vs NVIDIA Tesla K40m
Graphics Processor
| GPU model | GF100 | GK110B |
|---|---|---|
| Architecture | Fermi | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 3,100 million | 7,080 million |
| Die size | 529 mm² | 561 mm² |
Graphics Card
| Release date | Jul 25th, 2011 | Nov 22nd, 2013 |
|---|---|---|
| Generation | Tesla | Tesla |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Launch price | — | 7,699 USD |
Clocks
| GPU clock | 574 MHz | — |
|---|---|---|
| Shader clock | 1147 MHz | — |
| Memory clock | 747 MHz 3 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 745 MHz |
| Boost clock | — | 876 MHz |
Memory Configuration
| Memory size | 6 GB | 12 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 384 bit | 384 bit |
| Bandwidth | 143.4 GB/s | 288.4 GB/s |
Render Configuration
| Shading units | 448 | 2880 |
|---|---|---|
| TMUs | 56 | 240 |
| ROPs | 48 | 48 |
| SM count | 14 | — |
| Cache L1 | 64 KB (per SM) | 16 KB (per SMX) |
| Cache L2 | 768 KB | 1536 KB |
| SMX count | — | 15 |
Performance
| Pixel rate | 16.07 GPixel/s | 52.56 GPixel/s |
|---|---|---|
| Texture rate | 32.14 GTexel/s | 210.2 GTexel/s |
| FP32 (float) performance | 1,028 GFLOPS | 5.046 TFLOPS |
| FP64 (double) performance | 513.9 GFLOPS (1:2) | 1.682 TFLOPS (1:3) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 248 mm 9.8 inches | 267 mm 10.5 inches |
| TDP | 238 W | 245 W |
| Suggested PSU | 550 W | 550 W |
| Outputs | 1x DVI | No outputs |
| Power connectors | 1x 8-pin | — |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | — | 1.1 |
| CUDA | 2.0 | 3.5 |
| Shader model | 5.1 | 5.1 |
