Some people are OK with breaking their NDA. Such a guy, OC_Windforce, showed some overclocking results of Intel’s upcoming Core i7-3770K Ivy Bridge based processor. He used an Engeenring Sample of Core i7-3770K and MSI Z77A-GD65 motherboard along with LN2 to take the upcoming Ivy Bridge processor all the way up to 6.2 GHz (1.776 vCore). He also mentioned that the CPU sample he got isnt really a good one and 5 GHz is possible on air with 1.42v.
He showed the performance of Core i7-3770K in a couple of benchmarks and he broke the PiFast world record by scoring 11.77 sec with 6.1 GHz CPU clock and 4 GB of G.Skill memory running at 2440 MHz (8-11-7-28). In other benchmarks, the results were either really close to respective world records or they were better than the Core i7-2600K/2700K.
Source: XtremeSystems Forums