Oakley wrote:Go for Intel Core i5-processors if you want to run games like GTA SA.
I also prefer i7, but its up to you.
For the GPUs go for GeForce GTX 770 and look for 4GB vRAM or 2GB ++.
RAM you'll need more than 8 GB.
MY SPECS:
CPU: Intel Core i7 3770
GPU: GeForce GTX 660Ti 2GB (graphics clockspeed in boost is 1084 MHz and 1006 MHz in base)
RAM: DDR3 16GB
He doesn't need more than 2GB VRAM if he's playing on 1920x1080 resulotions, which I even doubt he does.
And, he doesn't necessarily need an i5 nor i7 to run a specific game, he can still run a specific game with almost the same FPS with either an AMD or an Intel processor. Some games and applications work better with different platforms, that's fact.