Bare Feats Posts Memory Report

[JimGoshorn]

While doing research for a new Mac Pro (coming from G5 Quad) I found this new post on Bare Feats:

http://www.barefeats.com/nehal02.html

Seems that according to people in the know, the new Mac Pros are supposed to work best with memory in 3's and that's why the new Octos come with 6 sticks.

Jim

 

[Igantius]

At the moment though there is some debate what impact utilising the additional slots has, so it'll be interesting to see what BF finds.

 

[barefeats]

Yup. We plan to test using 6 versus 8 slots. Also plan to test using mixes like 1GB mixed with 2GB modules as well as 2GB mixed with 4GB modules.

We have two memory stress benchmark apps that will show the transfer rate in and out of memory in GB/s.

 

[ncc1701d]

Thanks for the post Jim. So it looks as though you can't mix ram dimms...

EDIT: whooops! Barefeats must have read my mind and just beat me to it and is gonna test for it! Thanks - looking forward to that

 

[Umbongo]

Has it been confirmed if ECC RDIMMs, non-ECC UDIMMs and ECC UDIMMs all work? I assume this is in the manual, though the digital version isn't up yet.

 

[Jouhne]

from anandtech :
"Remember back to our original i7 review; we didn’t find a big performance benefit from three channels of DDR3 versus two." Here and MaximumPC

 

[Abidubi]

Old.