A little less than a year ago, I assembled a PC for computationally intensive applications (primarily electromagnetic sims) using New Egg available components. The heart of the system was a pair of Athlon 64 FX-74 processors on an Asus L1N64-SLI motherboard (http://www.newegg.com/Product/...Item=N82E16813131146).
I need to build another such machine, or better yet something slightly better at the same or lower cost. As the 64 FX 74 and the associated Asus MB have been relegated to "deactivated" status by New Egg (my, how quickly things change), one can assume that these have been superceded/ are deemed to be on the trailing technological edge. Obvious replacements would seem to be the Athlon 64 X2 6000+ uP and its associated Asus MB = CROSSHAIR AM2 NVIDIA nForce 590 (http://www.newegg.com/Product/...Item=N82E16813131593).
The problem I have, though, is that I would be going from (2) dual core FX processors to a single dual core X2 by virtue of the MB configurations (see above Asus links). I'm not sure why a dual processor MB version is not available for the X2 6000+. For that matter, there do not seem to be any signficant differences between the FX and X2, according to AMD's site (http://www.amd.com/us-en/Proce...13041%5E13043,00.html:
X2 = socket F at top; FX = socket AM2 directly below it).
So where I had a pair of Athlon 64 dual core uP's, my apparent replacement would be a single 64 dual core uP. Am I missing something? Yes, I'd save some $$$'s, but at what cost (performance wise)?