Product Compare
AMD Radeon HD 7950 Mac Edition vs NVIDIA Tesla K20X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Mar 2013 | Nov 2012 |
| Generation | Southern Islands | Tesla |
| Type | Desktop | Professional |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1250 MHz | 1300 MHz |
| Memory | ||
| Memory Size | 3GB | 6GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 240.0GB/s | 249.6GB/s |
| Render Config | ||
| Compute Units | 28 | |
| Shading Units | 1792 | 2688 |
| TMUs | 112 | 224 |
| ROPs | 32 | 48 |
| L1 Cache | 16 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 768 KB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 25.60 GPixel/s | 40.99 GPixel/s |
| Texture Rate | 89.60 GTexel/s | 164.0 GTexel/s |
| FP32 (float) | 2.867 TFLOPS | 3.935 TFLOPS |
| FP64 (double) | 716.8 GFLOPS | 1312 GFLOPS |
| Graphics Processor | ||
| GPU Name | Tahiti | GK110 |
| GPU Variant | Tahiti PRO(215-0821056) | |
| Architecture | GCN 1.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 4.313 billion | 7.08 billion |
| Die Size | 352 mm² | 561 mm² |
| Board Design | ||
| TDP | 200W | 235W |
| Suggested PSU | 550 W | 550 W |
| Outputs | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | No outputs |
| Power Connectors | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader Model | 5.1 | 5.1 |
| CUDA | 3.5 | |