NVIDIA GeForce 805A vs NVIDIA GeForce GT 820M
What is the difference between NVIDIA GeForce 805A and NVIDIA GeForce GT 820M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK208 | GPU Name | GF117 |
| Kepler 2.0 | Architecture | Fermi 2.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 1,020 million | Transistors | 585 million |
| 87 mm² | Die Size | 116 mm² |
Graphics Card
| Jul 22nd, 2014 | Release Date | Nov 27th, 2013 |
| GeForce 800A | Family | GeForce 800M |
| End-of-life | Production | End-of-life |
| GeForce 700A | Predecessor | GeForce 700M |
| PCIe 3.0 x8 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 1024 MB |
| DDR3 | Memory Type | DDR3 |
| 64 bit | Memory Bus | 64 bit |
| 16.02 GB/s | Bandwidth | 14.40 GB/s |
Performance
| 6.064 GPixel/s | Pixel fillrate | 3.100 GPixel/s |
| 12.13 GTexel/s | Texture fillrate | 12.40 GTexel/s |
| 291.1 GFLOPS | FP32 (float) performance | 297.6 GFLOPS |
| 12.13 GFLOPS (1:24) | FP64 (double) performance | 24.80 GFLOPS (1:12) |
Clock Speeds
| 1001 MHz 2 Gbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
Render Config
| 192 | Shading Units | 96 |
| 16 | TMUs | 16 |
| 8 | ROPs | 8 |
| 16 KB (per SMX) | L1 Cache | 64 KB (per SM) |
| 512 KB | L2 Cache | 128 KB |
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 |
| 3.0 | OpenCL | 1.1 |
| 1.1 | Vulkan | N/A |
| 5.1 | Shader Model | 5.1 |
| 3.5 | CUDA | 2.1 |