devrocker :
And I can run far cry 4,assassins creed 3,gta 4 , mafia 2 ,avatar, fifa 14 ,call of duty black ops 2 and my pc isn't a potato
Pc....And I know that I cannot run gta 5 on ultra setting or medium settings...
Well, we can simply disagree on what it means to "run" a game.
You'd be on LOW settings at a very LOW FPS and possibly have insufficient VRAM and system memory for that since I'm not sure what GTA5 needs... hard to predict since you are below the minimum.
Again you use some of the SYSTEM MEMORY for your iGPU so I'm not clear how you run anything when you have 2GB... that means if you assigned 512MB as VRAM you'd have just under 1.5GB for both Windows and the game.
At the very least I'd try to:
a) get more system memory (DDR3), and
b) get a used of inexpensive graphics card
Seems a shame to spend money on games that must really run horribly. Probably stutter and lag like crazy.
If you can find a 4GB stick of DDR3 for $20 and used card similar or better to GT1050 2GB performance that might be a way to go unless that's too much money.