ultra low

Hello guys! I'm writing this in a state of utter despair. I just got my Watch_Dogs 2 and my desktop has 4 GB VRAM installed, that's Nvidia GT 610 (pretty old). I just checked on "DXDIAG" and it also says that total graphics are 4019 MB, close to 4 Gigs, no problem, but both GTA 5 and Watch_Dogs...