If [NAME]'s budget means keeping the 790, going from a Pentium to an I7-2600 should be a nice upgrade.  Prices for it are a little more than I'd like to pay on eBay, but the I7-2600 and I7-2600k are close in prices.
i currently own a dell optiplex 790 and upgrading it to a budget gaming pc im planning to upgrade the pentium G640 to a I7 2600K And The Spec Info Shows Intel I7 Quad Core Series All The Core I7 2600's [IMAGE]
Can i upgrade a dell optiplex 790 to a intel core i7 2600k