Price is an important factor. Xeons are very expensive, even in volume purchases. The Xeon dual core processor (2.8 GHz) sells for about $1100 to $1200 (retail).ChrisA said:Why does Apple ned a high end CPU in an XServe? What do those run that needs it? They are mostly used as file servers. or maybe directory services and light duty web hosting. You don't see high CPU usage for these tasks
On the other hand people sometimes use PowerMacs to render hD video wich is typically 100% CPU bound.
XServes are used in high-performance clusters for industrial and scientific purposes. Virginia Tech isn't the only institution that has built a supercomputer out of XServes; we have as well (but I cannot say who 'we' are). Servers are used for many other purposes than web hosting.
For the desktop Macintosh, price is important. Apple will most likely price the new machines at the SAME levels as existing PowerMacs. Woodcrest will be too expensive, I think, to achieve those price points. And it's not necessary.
I haven't seen a reference from Intel that rules out SMP on Conroe (but then I haven't looked), but it's understandable given that Pentium does not support SMP, but Xeon does.
So if Conroe==Pentium and Woodcrest==Xeon, it's possible that only the top end PowerMac replacement will get Woodcrested.