AMD Radeon HD 7850M vs NVIDIA Quadro K620
What is the difference between AMD Radeon HD 7850M and NVIDIA Quadro K620. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Heathrow | GPU Name | GM107 |
| Heathrow PRO | Model number | GM107-850-A2 |
| GCN 1.0 | Architecture | Maxwell |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 1,500 million | Transistors | 1,870 million |
| 123 mm² | Die Size | 148 mm² |
Graphics Card
| Apr 24th, 2012 | Release Date | Jul 22nd, 2014 |
| London (HD 7800M) | Family | Quadro (Kx200) |
| End-of-life | Production | End-of-life |
| PCIe 3.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 2 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | DDR3 |
| 128 bit | Memory Bus | 128 bit |
| 64.00 GB/s | Bandwidth | 28.80 GB/s |
Performance
| 10.80 GPixel/s | Pixel fillrate | 17.98 GPixel/s |
| 27.00 GTexel/s | Texture fillrate | 26.98 GTexel/s |
| 864.0 GFLOPS | FP32 (float) performance | 863.2 GFLOPS |
| 54.00 GFLOPS (1:16) | FP64 (double) performance | 26.98 GFLOPS (1:32) |
Clock Speeds
| 1000 MHz 4 Gbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
Render Config
| 640 | Shading Units | 384 |
| 40 | TMUs | 24 |
| 16 | ROPs | 16 |
| 16 KB (per CU) | L1 Cache | 64 KB (per SMM) |
| 256 KB | L2 Cache | 2 MB |
Board Design
| 40 W | Thermal design power (TDP) | 45 W |
| No outputs | Display Connectors | 1x DVI 1x DisplayPort |
API support
| 12 (11_1) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |