Product Compare
AMD Radeon HD 7970 vs NVIDIA Tesla M40
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2012 | Nov 2015 |
| Generation | Southern Islands | Tesla Maxwell |
| Type | Desktop | Professional |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1375 MHz | 1502 MHz |
| Base Clock | 948 MHz | |
| Boost Clock | 1112 MHz | |
| Memory | ||
| Memory Size | 3GB | 12GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 384bit |
| Bandwidth | 264.0GB/s | 288.4GB/s |
| Render Config | ||
| Compute Units | 32 | |
| Shading Units | 2048 | 3072 |
| TMUs | 128 | 192 |
| ROPs | 32 | 96 |
| L1 Cache | 16 KB (per CU) | 48 KB (per SMM) |
| L2 Cache | 768 KB | 3 MB |
| Theoretical Performance | ||
| Pixel Rate | 29.60 GPixel/s | 106.8 GPixel/s |
| Texture Rate | 118.4 GTexel/s | 213.5 GTexel/s |
| FP32 (float) | 3.789 TFLOPS | 6.832 TFLOPS |
| FP64 (double) | 947.2 GFLOPS | 213.5 GFLOPS |
| Graphics Processor | ||
| GPU Name | Tahiti | GM200 |
| GPU Variant | Tahiti XT(215-0821060) | GM200-895-A1 |
| Architecture | GCN 1.0 | Maxwell 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 4.313 billion | 8 billion |
| Die Size | 352 mm² | 601 mm² |
| Board Design | ||
| TDP | 250W | 250W |
| Suggested PSU | 600 W | 600 W |
| Outputs | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin + 1x 8-pin | 8-pin EPS |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (12_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 3.0 |
| Vulkan | 1.2.170 | 1.3 |
| Shader Model | 6.5 (5.1) | 6.7 |
| CUDA | 5.2 | |
| Benchmarks | ||
| 3DMark Time Spy | 2310 | 5323 |