Product Compare
NVIDIA GeForce GTX 660 OEM vs NVIDIA GeForce GTX 1080
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Aug 2012 | May 2016 |
| Generation | GeForce 600 | GeForce 10 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 823 MHz | 1607 MHz |
| Boost Clock | 888 MHz | 1733 MHz |
| Memory Clock | 1400 MHz | 1251 MHz |
| Memory | ||
| Memory Size | 1536MB | 8GB |
| Memory Type | GDDR5 | GDDR5X |
| Memory Bus | 192bit | 256bit |
| Bandwidth | 134.4GB/s | 320.3GB/s |
| Render Config | ||
| Shading Units | 1152 | 2560 |
| TMUs | 96 | 160 |
| ROPs | 24 | 64 |
| L1 Cache | 16 KB (per SMX) | 48 KB (per SM) |
| L2 Cache | 384 KB | 2 MB |
| SM Count | 20 | |
| Theoretical Performance | ||
| Pixel Rate | 21.31 GPixel/s | 110.9 GPixel/s |
| Texture Rate | 85.25 GTexel/s | 277.3 GTexel/s |
| FP32 (float) | 2.046 TFLOPS | 8.873 TFLOPS |
| FP64 (double) | 85.25 GFLOPS | 277.3 GFLOPS |
| FP16 (half) | 138.6 GFLOPS | |
| Graphics Processor | ||
| GPU Name | GK104 | GP104 |
| GPU Variant | GK104-200-KD-A2 | GP104-400-A1 |
| Architecture | Kepler | Pascal |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 16 nm |
| Transistors | 3.54 billion | 7.2 billion |
| Die Size | 294 mm² | 314 mm² |
| Board Design | ||
| TDP | 130W | 180W |
| Suggested PSU | 300 W | 450 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI1x HDMI 2.03x DisplayPort 1.4a |
| Power Connectors | 1x 6-pin | 1x 8-pin |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 (12_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.3 |
| CUDA | 3.0 | 6.1 |
| Shader Model | 5.1 | 6.4 |
| Benchmarks | ||
| 3DMark Time Spy | 1194 | 7565 |
| 3DMark Time Spy Extreme | 260 | 3446 |