dude i am at computex, i went to the suite, i talked to Deepak Savadatti of IR(he was there monday, very nice guy we had an awesome chat) and I talked to the GB engineers.
http://www.irf.com/whats-new/nr110308.html So i asked what is different than DrMOS, first off, DrMOS doesn't use the same full body metal clip which reduces switching losses, they said optimal frequency for 60A output is 400KHz, but they can do it at higher frequencies, higher frequency usually means higher losses and lower current, so some companies will rate high, but only at 90% efficiency and that is usually around or under 300KHz.
UP7 has the IR3550, say DriverMOSFET to IR and they get kind of sad people don't know that DrMOS is an Intel protocol which isn't a class it i just a branding scheme and protocol. I bet Intel wouldn't like it either if you called these things DrMOS. UP7 doesn't have the 60A chokes however, the UP5 and UP4 do though, they are much bigger chokes, and cannot fit that many on the UP7. However the UP7's chokes are very good too, just lower current capability than UP5's and UP4's. If you would like I can show you the marketing stuff that clearly states 60A chokes. I understand your skepticism, as many manufacturers will advertise something, however not state how much current their chokes can handle which in the end is the limiting factor in a sense. GB isn't joking around, they really mean business with these new parts, UP5 has a freaking serious VRM.
