I received this email from a client. Can anyone give me any input on this?

I am considering purchasing a new server down the road for our FoxPro based application. Based on your experience with FoxPro do you believe our DB would run faster on a Dual processor 2.0+ ghz or faster machine with 4-5GB of ram or a Quad processor 700-800mhz with the same Ram. I haven't seen a good analysis on the benefits of dual vs quad with FoxPro and was wondering if you had seen any real experiences that might lead me in the right direction. Thanks