Make Backup Your Setting.xml in Document/Rockstar Games/GTA V/Here And Rename From settings.xml ==> settings.xml.bak

1) Copy My Setting.xml To This Folder Document/Rockstar Games/GTA V/Here

2) Open My setting.xml with notepad Scroll down You can find My GPU is "NVIDIA GeForce GTX 650 Ti" Rename This to Your GPU.

3) How to find Your GPU Name? Open Your settings.xml.bak with notepad scroll down Then Copy Your GPU name to my settings.xml Then Save

Enjoy...