Originally posted by: bryanW1995
I've seen many reports that agena will launch at 2.4-2.6. that's not a confirmation of a new stepping, but considering that they're stuck at 2.0 at barcelona's launch it seems reasonable. also, viditor has inside amd info
Just to be clear, this isn't something I've seen myself (though it does come from engineers whose word I trust).
What was told to me was that Rev B0 was originally to be the production stepping for shipping in Feb/March and launch in early June. It looked like it was going to test well, but then they started to find the broken bits...for instance they could only get one of the dual 128 bit loads to work at a time, especially when they went past 1.6 GHz. This is the stepping that they demoed earlier this year, and it was a pig!
The B1 rev is probably what most review sites now have and what will have been shipped in the first batch (remember that the first chips are the HE and SP versions...not the SE).
The B2 rev is all about getting the clockspeeds up for the SE versions, and they are due to ship in Nov (which means that production has already started).
The B3 rev is for Agena and will include the HT3 memory controller (which isn't in Barcelona) as well as the tweaks from B2.
I understand and agree with Toadster's skepticism, and as I am getting this secondhand I am keeping the salt shaker handy as well...that said, I believe these sources well enough to make investments based on what they say. I can't really say more than that...