not that much my uncle,s been using that cpu paired with a 3870 for a while know and been playing games at 1080p for a while know with no hiccups .yes it would bottlneck it but not by a lot .if he,s looking at a upgrade and only a casaul gaming id go with the i3/i5 or one of amd,s apu,s .something long the lines of a a8 5600k paired with a asus f2a55-m-lk as budget might be tight this is one option butt if not. an i5 setup would be ideal .that said though the gtx 630 isnt really a great card and the a8,s apu graphics would most likely be a better option .plus the abaility to overclok the gpu and cpu within the bios is a plus .as you dont need to worry about messing around with anything else