hopefully u havent bought anything yet. here a processor with better performance.
you goona need socket s939 motherboard.
do this decide on two computers one intel and one amd .when u have the items u want picked out, post then here and we can give some more advise.
google this processors and video cards for benchmarks. some u can make a more informed decision.
And the difference between the 2 processors is that 1 has a bigger l2 cache and EMT64 which it can do 64 bits code. the ohter can only do 32 bit code.