Originally posted by: lopri
Are you asking for a choice of HSF?
If you're interested in OC limit under air-cooling, I currently go with this:
While performance here is extremely strong, we also haven't even touched on the overclockability of Conroe; from what we've seen, hitting above 3.5GHz on the highest end parts isn't too far fetched on air cooling alone. The absolute highest we've seen on air is 3.8GHz from a Core 2 Extreme X6800 processor. By the time Conroe officially launches, we'll be able to provide a full set of performance tests but so far we're seeing even more data to support the idea that Intel really has a winner on its hands.
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2771&p=6
3.5GHz on air would be like 2.7~2.8GHz to dual-core Opterons, is my guess.
Edit: Oh it's about HSF. Why don't you post @C&C forum? You may get better inputs.