Guys, whose who own GTX TITAN, have you tried to enable full DP calculation mode?
I'm not sure, but i think that it will increase hasrate, because by default TITAN uses only 1\24 of his DP modules.
the TITAN always uses 100% of its DP modules.
First, the titan is 1/3 DP, unlike the rest of nvidia lineup which is 1/24 DP
What this means is that out of every 3 stream processors on the titan, 2 are SP only and 1 is DP.
A DP stream processor CAN operate in SP mode, but not vice versa.
As a result, the titans DP mode performance is 1/3rd that of its SP performance.
AFAIK that is irrelevant because CUDAminer runs using SP processors anyways.
I can tell because the GTX780 Ti outperforms the titan by 25% yet the GTX 780 Ti has 1/24th DP while the Titan has 1/3rd DP. Had it been a DP process the ittan would have effectively 896 DP stream processors compared the GTX780 Ti's 120 DP stream processors.
See
http://www.anandtech.com/show/7492/the-geforce-gtx-780-ti-reviewfor info about the two