Diogenes2 i dn't get what u mean. i still don't get why 3820 is cheaper. ...
The OP needs to read some CPU / platform reviews available right at this web-site.
They are multi-page descriptive articles of architecture / market target / price.
http://www.anandtech.com/tag/cpus
Intel Releases Core i7-3820
Intel Core i7 3820 Review: $285 Quad-Core Sandy Bridge E
Why Ivy Bridge Is Still Quad-Core
Ivy Bridge Desktop Lineup Overview
Intel Core i7 3960X (Sandy Bridge E) Review: Keeping the High End Alive
