[quote=@DarkwolfX37]
<Snipped quote by Meta>

Dude I have a AMD Phenom II X6 1045T, HPE-410y with 8gb and it's NOWHERE near enough to play even Hitman or Doom. 
[/quote]

Your RAM isn't your bottleneck.

Looking up your prebuilt model, your problem is the fact that you have an ATI Radeon HD5570 (and the fact that it's still ATI instead of AMD is telling, considering this was made before AMD bought ATI). Games are almost entirely GPU-bound, and this one isn't good.