I'm just as curious and would like to see 4.6Ghz+ stable screenie as well. Many people are just giving baseless claims. I guess for normal usage, the max. these chips can do are only around 4.3Ghz.

It doesn't make sense to spend around $200 for only a Super PI screenie. I rather get a E6550/E6750 and overclock the hell out of it. Only a 400-500Mhz difference.