I current have a e7200 @ 4ghz and 4gb of ram on an ASUS P5K - pro ( p35 chipset fyi ). I'm looking at getting a 4850 as an upgrade for my 8600gt. I might place an additional 4850 in at a later date but for starters it will be a single gpu solution. My main question is will by system be severely limited by the gpu in a single card setup and if i get a second gpu will it perform well on my motherboard. I know that my second slot will only have 4x speed but will this be a limiting factor on a 4850 as i know it would be on a higher end card. Thank you in advance.