Product Compare
NVIDIA Tesla K20c vs NVIDIA GeForce GTX 680
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2012 | Mar 2012 |
| Generation | Tesla | GeForce 600 |
| Type | Professional | Desktop |
| Bus Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1300 MHz | 1502 MHz |
| Base Clock | 1006 MHz | |
| Boost Clock | 1058 MHz | |
| Memory | ||
| Memory Size | 5GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 320bit | 256bit |
| Bandwidth | 208.0GB/s | 192.3GB/s |
| Render Config | ||
| Shading Units | 2496 | 1536 |
| TMUs | 208 | 128 |
| ROPs | 40 | 32 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per SMX) |
| L2 Cache | 1280 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 36.71 GPixel/s | 33.86 GPixel/s |
| Texture Rate | 146.8 GTexel/s | 135.4 GTexel/s |
| FP32 (float) | 3.524 TFLOPS | 3.250 TFLOPS |
| FP64 (double) | 1175 GFLOPS | 135.4 GFLOPS |
| Graphics Processor | ||
| GPU Name | GK110 | GK104 |
| GPU Variant | GK110-885-KA-A1 | GK104-400-A2 |
| Architecture | Kepler | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 7.08 billion | 3.54 billion |
| Die Size | 561 mm² | 294 mm² |
| Board Design | ||
| TDP | 225W | 195W |
| Suggested PSU | 550 W | 450 W |
| Outputs | No outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 1x 6-pin + 1x 8-pin | 2x 6-pin |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.2.175 |
| CUDA | 3.5 | 3.0 |
| Shader Model | 5.1 | 6.5 (5.1) |