When I unlocked shaders with those settings my improvement was around 4 extra average FPS in games like Aliens v/s Predator and Resident Evil 5. In Heaven Benchmark my increment was 1 FPS :( However, I have not yet valid conclusions about the increase of min FPS (the most important for me)...
How safe is unlock shaders and raise the clocks 840/1325 (CCC overdrive limits)???
Improvement the min FPS, worth for Crossfire, decrease the life time???
Thanks.