Product Compare
NVIDIA RTX A4000 vs NVIDIA GeForce GTX 660
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Apr 2021 | Sep 2012 |
| Generation | Quadro Ampere | GeForce 600 |
| Type | Professional | Desktop |
| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 735 MHz | 980 MHz |
| Boost Clock | 1560 MHz | 1032 MHz |
| Memory Clock | 1750 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 16GB | 2GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 256bit | 192bit |
| Bandwidth | 448.0GB/s | 144.2GB/s |
| Render Config | ||
| SM Count | 48 | |
| Shading Units | 6144 | 960 |
| TMUs | 192 | 80 |
| ROPs | 96 | 24 |
| Tensor Cores | 192 | |
| RT Cores | 48 | |
| L1 Cache | 128 KB (per SM) | 16 KB (per SMX) |
| L2 Cache | 4 MB | 384 KB |
| Theoretical Performance | ||
| Pixel Rate | 149.8 GPixel/s | 20.64 GPixel/s |
| Texture Rate | 299.5 GTexel/s | 82.56 GTexel/s |
| FP16 (half) | 19.17 TFLOPS | |
| FP32 (float) | 19.17 TFLOPS | 1.981 TFLOPS |
| FP64 (double) | 299.5 GFLOPS | 82.56 GFLOPS |
| Graphics Processor | ||
| GPU Name | GA104 | GK106 |
| GPU Variant | GA104-875-A1 | GK106-400-A1 |
| Architecture | Ampere | Kepler |
| Foundry | Samsung | TSMC |
| Process Size | 8 nm | 28 nm |
| Transistors | 17.4 billion | 2.54 billion |
| Die Size | 392 mm² | 221 mm² |
| Board Design | ||
| TDP | 140W | 140W |
| Suggested PSU | 300 W | 300 W |
| Outputs | 4x DisplayPort 1.4a | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 1x 6-pin | 1x 6-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.3 | 1.1 |
| CUDA | 8.6 | 3.0 |
| Shader Model | 6.7 | 5.1 |
| Benchmarks | ||
| 3DMark Time Spy | 11079 | 1194 |
| 3DMark Time Spy Extreme | 5367 | 260 |
| OctaneBench | 352 | 27 |