Here is a small collection of links to tools for measuring and evaluating mobile and desktop processors, along with some marketing hype from Intel about Sandy Bridge.
CPU-Z info for 45nm Core i7 930
Geekbench results for 45nm Core i7 930 with 12GB of RAM
Geekbench results for 32nm Core i7 2600K with 16GB of RAM
My little Core i7 2600K system just dominates my Core i7 930 system that I use at work on the Geekbench benchmark. That Bloomfield Core i7 is still a very fast system that I am pretty happy with, but Sandy Bridge is significantly better.