Quote Originally Posted by informal View Post
snip
When the i7-965 significantly outperforms the QX9770, its power consumption is around the same - thus giving us much better performance per watt. When the i7-965 can't really outperform the QX9770, for example in some of the gaming benchmarks, the total system power consumption is much lower.
http://www.anandtech.com/cpuchipsets...spx?i=3453&p=3