Product Compare
NVIDIA GeForce GTX 660 vs NVIDIA GeForce RTX 2080
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2012 | Sep 2018 |
| Generation | GeForce 600 | GeForce 20 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 980 MHz | 1515 MHz |
| Boost Clock | 1032 MHz | 1710 MHz |
| Memory Clock | 1502 MHz | 1750 MHz |
| Memory | ||
| Memory Size | 2GB | 8GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bus | 192bit | 256bit |
| Bandwidth | 144.2GB/s | 448.0GB/s |
| Render Config | ||
| Shading Units | 960 | 2944 |
| TMUs | 80 | 184 |
| ROPs | 24 | 64 |
| L1 Cache | 16 KB (per SMX) | 64 KB (per SM) |
| L2 Cache | 384 KB | 4 MB |
| SM Count | 46 | |
| Tensor Cores | 368 | |
| RT Cores | 46 | |
| Theoretical Performance | ||
| Pixel Rate | 20.64 GPixel/s | 109.4 GPixel/s |
| Texture Rate | 82.56 GTexel/s | 314.6 GTexel/s |
| FP32 (float) | 1.981 TFLOPS | 10.07 TFLOPS |
| FP64 (double) | 82.56 GFLOPS | 314.6 GFLOPS |
| FP16 (half) | 20.14 TFLOPS | |
| Graphics Processor | ||
| GPU Name | GK106 | TU104 |
| GPU Variant | GK106-400-A1 | TU104-400A-A1 |
| Architecture | Kepler | Turing |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 12 nm |
| Transistors | 2.54 billion | 13.6 billion |
| Die Size | 221 mm² | 545 mm² |
| Board Design | ||
| TDP | 140W | 215W |
| Suggested PSU | 300 W | 550 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x HDMI 2.03x DisplayPort 1.4a1x USB Type-C |
| Power Connectors | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Graphics Features | ||
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.3 |
| CUDA | 3.0 | 7.5 |
| Shader Model | 5.1 | 6.8 |
| Benchmarks | ||
| 3DMark Time Spy | 1194 | 11078 |
| 3DMark Time Spy Extreme | 260 | 5146 |