Product Compare
NVIDIA Tesla K40d vs AMD Radeon R9 280
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2013 | Mar 2014 |
| Generation | Tesla Kepler | Volcanic Islands |
| Type | Professional | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 745 MHz | 827 MHz |
| Boost Clock | 876 MHz | 933 MHz |
| Memory Clock | 1502 MHz | 1250 MHz |
| Memory | ||
| Memory Size | 12GB | 3GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 288.4GB/s | 240.0GB/s |
| Render Config | ||
| Shading Units | 2880 | 1792 |
| TMUs | 240 | 112 |
| ROPs | 48 | 32 |
| L1 Cache | 16 KB (per SMX) | 16 KB (per CU) |
| L2 Cache | 1536 KB | 768 KB |
| Compute Units | 28 | |
| Theoretical Performance | ||
| Pixel Rate | 52.56 GPixel/s | 29.86 GPixel/s |
| Texture Rate | 210.2 GTexel/s | 104.5 GTexel/s |
| FP32 (float) | 5.046 TFLOPS | 3.344 TFLOPS |
| FP64 (double) | 1.682 TFLOPS | 836.0 GFLOPS |
| Graphics Processor | ||
| GPU Name | GK110B | Tahiti |
| 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 |
| GPU Variant | Tahiti PRO3(215-0821330) | |
| Board Design | ||
| TDP | 245W | 200W |
| Suggested PSU | 550 W | 550 W |
| Outputs | No outputs | 1x DVI2x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 1x 6-pin + 1x 8-pin | |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 1.2 |
| Vulkan | 1.2.175 | 1.2 |
| CUDA | 3.5 | |
| Shader Model | 6.5 (5.1) | 5.1 |