You don't give the rest of your computer parts like your free ram, motherboard, hard disk in the forum and no one can help you.
Anyway don’t worry so much about benchmarks in the real world computing the most games are using only 1 cpu, you will not find enough x64 applications either or games that use more than 3.5 Gbytes ram! In Tom’s hardware cpu reviews are running a large number of test and they end up saying this cpu is 5% or 15% faster!
Even if you though many money and fix the perfect work station this will not help you playing gaming so much as you expected.
A Raid 0 with 2 ssd’s will improve your speed even in idle is the best choice you have to make.