NVIDIA GeForce 820A vs NVIDIA GeForce GT 820M
What is the difference between NVIDIA GeForce 820A and NVIDIA GeForce GT 820M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GF117 | GPU Name | GF117 |
| N15V-GM | Model number | N15V-GM |
| Fermi 2.0 | Architecture | Fermi 2.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 585 million | Transistors | 585 million |
| 116 mm² | Die Size | 116 mm² |
Graphics Card
| Mar 17th, 2014 | Release Date | Nov 27th, 2013 |
| GeForce 800A | Family | GeForce 800M |
| End-of-life | Production | End-of-life |
| GeForce 700A | Predecessor | GeForce 700M |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 1024 MB |
| DDR3 | Memory Type | DDR3 |
| 64 bit | Memory Bus | 64 bit |
| 14.40 GB/s | Bandwidth | 14.40 GB/s |
Performance
| 3.100 GPixel/s | Pixel fillrate | 3.100 GPixel/s |
| 12.40 GTexel/s | Texture fillrate | 12.40 GTexel/s |
| 297.6 GFLOPS | FP32 (float) performance | 297.6 GFLOPS |
| 24.80 GFLOPS (1:12) | FP64 (double) performance | 24.80 GFLOPS (1:12) |
Clock Speeds
| 900 MHz 1800 Mbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
| 775 MHz | GPU Clock | 775 MHz |
Render Config
| 96 | Shading Units | 96 |
| 16 | TMUs | 16 |
| 8 | ROPs | 8 |
| 64 KB (per SM) | L1 Cache | 64 KB (per SM) |
| 128 KB | L2 Cache | 128 KB |
| 2 | SM Count | 2 |
Board Design
| 15 W | Thermal design power (TDP) | 15 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_0) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 5.1 | Shader Model | 5.1 |
| 2.1 | CUDA | 2.1 |