I just started getting some AVX tasks with the new app. I previously was only getting SSE2. There is a comment about FMA on the forums as a test version. AVX on my 2670v1 is maybe 30s-1min faster. Only 4 completed so far. Maybe CPUs with AVX2 or FMA will see more improvement.
I had just gotten 1k hours in the app so I'm all over to Denis atm.