"Our tests demonstrate fairly little difference between a $225 LGA 1155 Core i5-2500K and a $1000 LGA 2011 Core i7-3960X, even when three-way graphics card configurations are involved. It turns out that memory bandwidth and PCIe throughput don't hold back the performance of existing Sandy Bridge-based machines. "
http://www.tomshardware.com/reviews/gaming-cpu-review-overclock,3106-4.html

The usual game issue is the GPU, not so much the CPU. But consumers are programmed that the i7 is king.

The Samsung or similar model was in a recent reply at http://forums.cnet.com/7723-19680_102-579928/needing-advice/?tag=contentBody;threadListing

Not bad to ask. My only comment is that you must be ready for shorter life spans as we are cramming a lot into a small space. Figure a year or two earlier repairs.
Bob