sgolds,
don't forget that large numbers of wafers will be needed to build inventory for Athlon64 for end of year sales.
There is no reason to package any A64s if you are selling out Opterons. If AMD keeps selling out Opterons, A64 can be a low volume launch or postponed launch.
There is just no reason to be supply constrained on Opteron (unless the SOI just completely doesn't work). So basically, AMD first allocates wafers fir all the high end Opteron chips that can be sold and goes down from there.
I don't have any numbers to make a reasonable estimate of how many wafers will be needed for each processor but I am having a hard time believing that AMD will be able to produce enough Opterons this year to be market constrained.
Well, I gave you one ballpark number. Here is another. AMD allocates half its Dresden capacity 2500 wpw to Opteron, achieves 60% yield, or about 90 good die per wafer and produces 2.9 million Opterons per quarter, and achieves 100% market share and on top of that places 400,000 to inventory.
Now think about which one is within realm of possibilities, ability to produce this many chips or ability to sell this many chips.
If the demand is there for Opteron it makes no sense to forgo selling 1 $500 Opteron in favor of 2 or 3 $60 chips. There is no reason for Hector to leave revenue of $1.25 billion per quarter, even if it took 100% of the wafer starts to produce these 2.5M Opterons per quarter.
The obvious answer is that AMD is (and has been for long time) demand limited. Even at prices lower than Intel, AMD has hard time selling out the products, and Opteron is no different.
The reason why there are no more OEMs selling Opteron is not supply (well, some may be waiting to see proof that AMD can produce them, since it is a brand ne chip) but other reasons.
Joe