Product Compare
AMD Radeon R9 M290X Mac Edition vs NVIDIA GeForce GTX 660 Rev. 2
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2014 | Sep 2014 |
| Generation | Crystal System | GeForce 600 |
| Type | Mobile | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 850 MHz | 980 MHz |
| Boost Clock | 975 MHz | 1032 MHz |
| Memory Clock | 1365 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 2GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 192bit |
| Bandwidth | 174.7GB/s | 144.2GB/s |
| Render Config | ||
| Compute Units | 16 | |
| Shading Units | 1024 | 960 |
| TMUs | 64 | 80 |
| ROPs | 32 | 24 |
| L1 Cache | 16 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 512 KB | 384 KB |
| Theoretical Performance | ||
| Pixel Rate | 31.20 GPixel/s | 20.64 GPixel/s |
| Texture Rate | 62.40 GTexel/s | 82.56 GTexel/s |
| FP32 (float) | 1.997 TFLOPS | 1.981 TFLOPS |
| FP64 (double) | 124.8 GFLOPS | 82.56 GFLOPS |
| Graphics Processor | ||
| GPU Name | Pitcairn | GK104 |
| GPU Variant | Pitcairn PRO(215-0828062) | |
| Architecture | GCN 1.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 2.8 billion | 3.54 billion |
| Die Size | 212 mm² | 294 mm² |
| Board Design | ||
| TDP | 80W | 140W |
| Outputs | No outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | None | 1x 6-pin |
| Suggested PSU | 300 W | |
| 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 | 3.0 | |