Fastest Xeon for 5,1 ?

[macguru9999]

Is the W3690 and the X5690 the fastest processor that will work in a 5,1 cpu tray ?

I gather its a 1366 socket, will the X5687 (4 cores, 3.6 GHz) and X5698 (2 cores, 4.4 GHz) work as well ?
how about the core i7 960 and 970 ?

 

[mikas]

It's all covered quite thoroughly in the first page of this sticky thread:
Mac Pro CPU Compatibility List

 

[Ludacrisvp]

I don't recall if the guide calls out the i7 processors, but no real point to use them in the mac pro. They usually cost more and don't support all the same stuff that the Xeon does.