I have read a few of the threads here trying to find out which app I should use for my Xeon machines. These are not necessarily the HT Xeons - in fact I know one is a fairly old Xeon system but since I have two systems with dual procs, I would love to get the most crunching power out of them.

According to CPU-Z:

System One:

2x Intel Xeon Prestonia core Brand ID 11 2.4 GHz Family F Model 2 Stepping 7 - socket 604 mPGA

Each processor has ONE Core and ONE thread

it will run MMX, SSE, SSE2

System Two:

2x Intel Xeon Prestonia core Brand ID 11 2.0 GHz Family F Model 2 Stepping 4 - socket 604 mPGA

Each processor has ONE core and TWO threads

It will run MMX, SSE, SSE2

Also, on older AMD procs (such as plain Athlon, etc.) - if they only support MMX and SSE, is it better to run the MMX or the SSE? And for the older Intel processors that do the same - run the SSE or the MMX?

I apologize for all the questions; but I have been crunching SETI for too long and have a bunch of systems running and figure I might as well get the most out of each one.

Thanks so much for the help.

Trever

Thanks so much for the info Joe.

Now, lets see if I can get a bump in performance on those wonderful Xeons.