Recently managed to grab a graphics card from some guy on the Internet and when I get the card It gets really bad FPS Ingames and I get stutters every now and then and I've even crashed accouple of times I posted on reddit but didn't get and replies I've replaced the storage and have added a extra ssd and even replaced the RAM and I have downloaded new drivers and new bios but nothing..
Specs:
i5-4590
Powercolor RX 480 8gb Red Devil (If I'm not wrong should be able to run most games med settings?)
16gb RAM