SweetFX is a program that helps refining how your game looks, you can control effects like blur, AA, SMAA, FXAASMAA (anti aliasing), sharpening, vibrance, tonemap, curves, HDR, bloom – and more!
It seems that the frames per second drops is minimal.
Various links:
Official Site?
Link to Database profiles for games
This news was sent by user Satrincha, now my personal opinion about this.. I saw some screenshots around the net and tbh i don’t see any noticeable change, apart the bloom effects which is notable, Have you ever used this program? If so tell us if you were satisfied, if it worked good etc etc… in the comments..