The one you linked....i doubt GTAV will even launch at all due to not meeting minimum requirements.
As for upgrades, likely out the window for a quad due to chipset used.
Its gona take something a lot more powerful to even start the game up.
An FM2 AMD quad at minimum i would say, i talk from playing GTAV on an AMD quad overclocked.
For peak as you say then i would say get an Intel i7 build?GTX 970/ 290X