I think AMD has absolutely no chance to take back the crown until their 45nm chips (Shanghai/Deneb) are out, and even then I think it will be a close competition with Nehalem, which will be coming out around the same time (end of this year). It will be a race to see who is first to arrive and take the crown. The good news for AMD is that despite Intel's claims that Nehalam will beat Penryn by 20-30%, I doubt it will be anywhere close to that, since the biggest performance-improving factor known is the integrated DDR3 memory controller and Quickpath bus (Intel's version of Hypertransport). Most also I think there will be a 10-20% improvement, which was what was seen when AMD moved from K7 to K8. Also, Deneb will have a substantially larger cache than Agena (last I heard, ~6mb total L1, L2 & L3 combined), so this removes one of the largest stumbling blocks for AMD (AMD loses big time in anything that uses lots of cache-gaming, multimedia encoding/decoding, benchmarks).
2nd good news for AMD is that its unlikely that Nehalam will clock higher than Penryn, even on extreme cooling Penryn doesn't clock much higher than Conroe (though it produces so little heat that you can hit 4Ghz on air cooling). This shows that there is a major technological block to achieving more than 4Ghz on current silicon technology, and its highly unlikely that it would be solved by the time Nehalem is out. For point of reference, the max overclock for Conroe hasn't changed much since it came out over a year ago, and Penryn hardly improves on that. AMD has a chance to work on their design and produce a chip that can match Intel on clockspeed, but they much get it done within the year or things will get difficult. Clockspeed should improve when AMD goes 45nm, and I'm praying they will start using Si-Ge in Deneb, though I doubt it will happen though research is underway at AMD. Si-Ge integrated circuits can clock spectacularly higher than pure Si circuits, for identical designs a pure Si circuit that maxes out at 4Ghz can reach 6-12GHz when built on Si-Ge.
Another plus for AMD platforms is that they will not require any big system changes, while its unavoidable for Intel users that they'll have to change their motherboard for sure (the circuit is 100% different). Last I heard, even AM3 processors will be able to run on AM2 boards and DDR2, even though they're supposed to run DDR3. Nehalem will almost surely run only DDR3.
The bad news for AMD is that Intel will have plenty of experience with 45nm production by the time Nehalem arrives, and its unlikely Intel will make any mistakes for AMD to take advantage of. Any mistake by AMD will be fatal at this point, and it doesn't help that AMD is having financial troubles due to the Barcelona TLB screw up and the overpriced purchase of ATI.
Thats quite interesting, I need to try it out on my nview. Seem to be getting a slightly worse overclock than most of the F3 users, though its partly because the place where I overclock is pretty warm.
Last I heard, the highest clocked dual core Phenoms (kuma) are clocked similarly to the quad core Agenas. In general though, as I recall most of the kumas are clocked higher than the agenas.
will post ice wc result in 2 days~