I'm thinking of putting a gtx 750 ti in my current pc. Would my CPU matter on graphic preforming. It has a Duel core intel pentium D 3.00 ghz CPU. What kind of settings would be playable and look decent for example Crysis 3 on medium graphics 1080p with so and so frames per second. or what cpu would i be able to upgrade to thats around $100 with the same socket as my current cpu.