Hi!
 
What do you think is better for folding, a dual Opteron 6262 HE (16 x 2 @ 1.6GHz "Interlagos") or Opteron 6166 HE (12 x 2 @ 1.8Ghz "Magny-Cours")?
 
I want a low watage rig for 24/7 folding, so CPUs will run at stock speed. Thanks for all!

MC will do better in folding but it won't be able to finish bigadv units (which will be gone come January anyway).

I turned my Folding EVGA 2P to a Crunching EVGA 2P rig with 2x Opteron (16-Core) Model 6274 2.2 GHz 16 Cores and one GTX 660-Ti. I was Crunching on 30 Cores and Folding on the GPU. For the most part on the older Non GK110 cards it took 20+ hours to complete one Project for about 34,000 a Day, not worth it for me. So I stopped Folding altogether on my 2P Rig. For Crunching on the CPU Cores they do day 2 times or longer then an Intel CPU Running at 4200MHz.
Now on POGS one project take 3.5 Hours on the Opteron to the 1.5 hours on the Intel CPU, but then I can only run 12 Projects on the Intel to the 30 Projects on the 2 Opteron CPUs.
I now do the same on my 4P, it Crunches 62 Cores and I run MilkyWay@Home on the one GTX 650Ti GPU installed.
I now have a single Rig Folding with two AMD GPUs for about 400,000 Credits a day and Crunch on the 10 Cores, left 1 core for each GPU. I look at Folding now if you have I high end AMD R9 290 or a GTX 780 or higher then you are set for Folding on GPUs, I never really Folded non BigAdv Projects. Folding for me was starting to stress me out and was not longer having fun doing it, But Crunching for me is a Blast.

megalolman
Hmmmm...
 
Another idea is to use a low TDP CPU paired with 1, 2 or 3 GTX750Ti (60Watts each). I think that they are super efficient and two or three of them can make some serius output at a good pricepoint. What do you think?

I think that would be a pretty good idea if low wattage and high PPD/watt is desired.