There is some increase in reported speed. Before, i was using 28x8 with a GTX560Ti 448 core and peaking around 210khash/s. Now using F14x16 im getting up to 218khash/s.
Not much more but still more. Great work, thanks.
First, congrats for being able to set up compilation on Windows. This certainly is no piece of cake.
That windows compilation issue has been fixed meanwhile, also the x16 warps issue you noted.
Try passing the flag -H1 for a bit more speed. I get 225 kHash/s on 560Ti 448 core. The default is -H 0 which uses a non-parallel approach on the CPU to do the SHA256 hashing - while it reduces CPU load by about a third it also takes some percent off my kHash values on the fastest cards.