I really think there is no point to argue further more on irelevant statements who says then and that,and make solid facts on the table and finish this debate because clearly u wont give up atleast for 3 more pages on irelevant discussion.
http://www.notebookcheck.net/Review-Intel-Ivy-Bridge-Quad-Core-Processors.73624.0.html
Intel appears to have increased the idle speed from 800 to 1200 MHz, which will presumably impact energy draw. Nevertheless, we ascertained a reproducible increase of approximately 2 watts in all Ivy Bridge models compared with the old i7-2760QM likely still a BIOS issue or peculiarities of the pre-production CPU. We will examine the upcoming production models closely for confirmation.
And finnaly
However, if you are the owner of a Sandy Bridge notebook, you will likely see little reason to upgrade to Ivy Bridge.