Product Compare
AMD Radeon R9 280X2 vs NVIDIA Tesla K40t
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Unknown | Nov 2013 |
| Generation | Volcanic Islands | Tesla Kepler |
| Type | Desktop | Professional |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 950 MHz | 745 MHz |
| Boost Clock | 1000 MHz | 876 MHz |
| Memory Clock | 1500 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 3GB | 12GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 288.0GB/s | 288.4GB/s |
| Render Config | ||
| Compute Units | 32 | |
| Shading Units | 2048 | 2880 |
| TMUs | 128 | 240 |
| ROPs | 32 | 48 |
| L1 Cache | 16 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 768 KB | 1536 KB |
| Theoretical Performance | ||
| Pixel Rate | 32.00 GPixel/s | 52.56 GPixel/s |
| Texture Rate | 128.0 GTexel/s | 210.2 GTexel/s |
| FP32 (float) | 4.096 TFLOPS | 5.046 TFLOPS |
| FP64 (double) | 1024 GFLOPS | 1.682 TFLOPS |
| Graphics Processor | ||
| GPU Name | Tahiti | GK110B |
| GPU Variant | Tahiti XTL(215-0821065) | |
| 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 | 375W | 245W |
| Suggested PSU | 750 W | 550 W |
| Outputs | 6x mini-DisplayPort 1.2 | No outputs |
| Power Connectors | 3x 8-pin | |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.2.175 |
| Shader Model | 5.1 | 6.5 (5.1) |
| CUDA | 3.5 | |