F_I_N
Yes the 10471 WU's and also the 7626 WU's
 
Been praying for the core 17 wu's but seem to be getting a mixed bag of wu's

So is everyone, and until Stanford does something about core15/18 pretty much anyone on a decently powerful nvidia gpu is going to have their pdd swing back and forth all over the place. 

Any updates?
 
I ask because I believe I'm seeing a similar issue after the addition of the old 680 into my main machine (which now houses both 970 FTWs, and the 680).
All three GPUs pulled 9201's, and up until roughly 10% completion, all had a TPF of under 2 minutes. However, shortly afterwards, one 970 jumped to 9:30 TPF, and stayed there, even after all other WUs finished. Didn't get a chance to look into it too much last night, but will when I get a chance, so I'll be paying attention to this thread to see if any suggestions help.
 
OP (F_I_N), does this sound anything like what you were seeing as well?

I assume you're using an eVGA motherboard F_I_N? 

I don't recall anything similar in the BIOS of the Asus Sabertooth X79 board's BIOS, but will see what I can find.