I'm new to building a PC but will try finally to build a gaming PC. I see in these forums i5 used for gaming builds but my question is wouldn't a i7 3930k be better then an i5 for gaming? also 4 cores vs 6 cores has no differences for gaming? and 8mb cache vs 12 or 15 mb cache I dont even knwo what those are but do they make a difference in gaming?
you are right they hardly make adifference what i would suggest you is that save some money on the cpu for a great gpu and motherboard.most games utilize maximum form the gpu......even an core i3 runs games at high settings smoothly at 50-55 fps...........but the best option for you will be core i5 3570k its the lates built on the ivy bridge which makes more power efficient and loww on heat + its got support for the pci 3 slot........you cn also check this chart for your reference http://www.tomshardware.com/reviews/gaming-cpu-review-overclock,3106-5.html