Ow man ! I just installed 67.66 and got me a good 6 to 18 fps boost in the demo over the old 61.77 (all 66.xx gave my pc issues) IQ looks better now too and so does the sm.3.0 HDR. No more framerates below 24 now. yum.
I'm NOT going back to 1.1 anymore heheh
Those comparison pics are nice, but you really gotta see it in motion to appreciate it. The HDR effects are dynamic and dependant on the angle of your point of view to the lit surface.
Now, I just hope Ubi tweaks the final code some more so it'll add another 10 or more fps