Product Compare
NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA A800 SXM4 80 GB
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2014 | Aug 2022 |
| Generation | GeForce 600 | Ampere |
| Type | Desktop | AI GPU |
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 980 MHz | 1155 MHz |
| Boost Clock | 1032 MHz | 1410 MHz |
| Memory Clock | 1502 MHz | 1593 MHz |
| Memory | ||
| Memory Size | 2GB | 80GB |
| Memory Type | GDDR5 | HBM2e |
| Memory Bus | 192bit | 5120bit |
| Bandwidth | 144.2GB/s | 2039GB/s |
| Render Config | ||
| Shading Units | 960 | 6912 |
| TMUs | 80 | 432 |
| ROPs | 24 | 160 |
| L1 Cache | 16 KB (per SMX) | 192 KB (per SM) |
| L2 Cache | 384 KB | 40 MB |
| SM Count | 108 | |
| Tensor Cores | 432 | |
| Theoretical Performance | ||
| Pixel Rate | 20.64 GPixel/s | 225.6 GPixel/s |
| Texture Rate | 82.56 GTexel/s | 609.1 GTexel/s |
| FP32 (float) | 1.981 TFLOPS | 19.49 TFLOPS |
| FP64 (double) | 82.56 GFLOPS | 9.746 TFLOPS |
| FP16 (half) | 77.97 TFLOPS | |
| Graphics Processor | ||
| GPU Name | GK104 | GA100 |
| Architecture | Kepler | Ampere |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 7 nm |
| Transistors | 3.54 billion | 54.2 billion |
| Die Size | 294 mm² | 826 mm² |
| Board Design | ||
| TDP | 140W | 400W |
| Suggested PSU | 300 W | 800 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin | None |
| Graphics Features | ||
| DirectX | 12 (11_0) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | N/A |
| CUDA | 3.0 | 8.0 |
| Shader Model | 5.1 | N/A |