http://www.tomshardware.com/reviews/best-gaming-cpu-core-i5-760-core-i7-970,2698.html Here you go.. even though it says "gaming cpu" it still applies. It's 2 months old but you can research your CPU from there when you select a price you are willing to spend.
You might look at some other non gaming CPUs too like the AMD 6 cores.