Re: Graphics Intel® HD Graphics 4400 or NVIDIA GeForce 820M 2GB
Intel® HD Graphics 4400 is a low and weak graphics card not suitable for demanding and powerful games. It's used for other applications or softwares such as google chrome, or minesweeper, anything that doesn't require huge processing.
The Nvidia GeForce is more powerful, high performance, has tons of GPU power to make sure the game is playable.
If you want to start a game always make sure it's played using the Nvidia Geforce. To do that simply right click > run with graphics processor > high performance nvidia processor.