The long and short of the new Lynnfield-based Intel Core i7 and Core i5 desktop chips: Nehalem power for cheaper than ever, and all you’re losing is triple-channel memory (in new i7 and i5) and hyperthreading (in i5). [Anandtech]
https://gizmodo.com/giz-explains-why-intels-core-i7-processor-is-a-beautif-5099060