Product Compare
AMD Radeon R9 280 vs NVIDIA Tesla K40st
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Mar 2014 | Nov 2013 |
| Generation | Volcanic Islands | Tesla |
| Type | Desktop | Professional |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 827 MHz | |
| Boost Clock | 933 MHz | |
| Memory Clock | 1250 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 3GB | 12GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 240.0GB/s | 288.4GB/s |
| Render Config | ||
| Compute Units | 28 | |
| Shading Units | 1792 | 2880 |
| TMUs | 112 | 240 |
| ROPs | 32 | 48 |
| L1 Cache | 16 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 768 KB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 29.86 GPixel/s | 34.50 GPixel/s |
| Texture Rate | 104.5 GTexel/s | 138.0 GTexel/s |
| FP32 (float) | 3.344 TFLOPS | 3.312 TFLOPS |
| FP64 (double) | 836.0 GFLOPS | 1104 GFLOPS |
| Graphics Processor | ||
| GPU Name | Tahiti | GK110B |
| GPU Variant | Tahiti PRO3(215-0821330) | |
| 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 | 245W |
| Suggested PSU | 550 W | 550 W |
| Outputs | 1x DVI2x HDMI 1.4a1x DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin + 1x 8-pin | |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader Model | 5.1 | 5.1 |
| CUDA | 3.5 | |