ASUS P4S800D-E Deluxe
 

I have to admit I was surprised. In apps that are memory
bound, the 655TX appears to be faster than Canterwood. The Springdale-PE
on the DFI, backed up by a capable PAT BIOS means that we were emulating
Canterwood. It has lower memory access latency, measured by Sciencemark,
and it appears to have a touch more available bandwidth too. It's not
much, but it's enough. With Canterwood the performance champion for P4,
it appears we have a new champion when your app is memory bound in any
way. Raw CPU performance is identical; 655TX ran the 3.2GHz Northwood
without issue.

Link:
http://www.hexus.net/content/reviews...lld19JRD03MTU=