Product Compare
NVIDIA Tesla K20s vs AMD Radeon HD 7970 X2
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Feb 2013 | Aug 2012 |
| Generation | Tesla | Southern Islands |
| Type | Professional | Desktop |
| Bus Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1300 MHz | 1375 MHz |
| Memory | ||
| Memory Size | 5GB | 3GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 320bit | 384bit |
| Bandwidth | 208.0GB/s | 264.0GB/s |
| Render Config | ||
| Shading Units | 2496 | 2048 |
| TMUs | 208 | 128 |
| ROPs | 40 | 32 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per CU) |
| L2 Cache | 1280 KB | 768 KB |
| Compute Units | 32 | |
| Theoretical Performance | ||
| Pixel Rate | 29.90 GPixel/s | 29.60 GPixel/s |
| Texture Rate | 119.6 GTexel/s | 118.4 GTexel/s |
| FP32 (float) | 2.870 TFLOPS | 3.789 TFLOPS |
| FP64 (double) | 956.8 GFLOPS | 947.2 GFLOPS |
| Graphics Processor | ||
| GPU Name | GK110 | New Zealand |
| Architecture | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 7.08 billion | 4.313 billion |
| Die Size | 561 mm² | 352 mm² |
| Board Design | ||
| TDP | 225W | 500W |
| Suggested PSU | 550 W | 900 W |
| Outputs | No outputs | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power Connectors | 3x 8-pin | |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 1.2 |
| Vulkan | 1.1 | 1.2 |
| CUDA | 3.5 | |
| Shader Model | 5.1 | 5.1 |