@Sbertram: I tried this scene with the "4" renderer in all three versions. It doesn't have a lot of human figures, but the tree in the background is a complex item.  (I can always hear the computer's fan speed up when Poser hits this tree!)  The scene doesn't use any shaders, so it should be equivalent for all versions in that sense.

Times:

In P4 itself: 1:15
In P6: 1:40
In P7 after the service release: 2:10

I suppose this is "faster" in some mathematical sense, just as
texture filtering is "correct" in some mathematical sense.

Also, the SR didn't fix the main P7 feature, which is
that the Firefly renderer gives me a beautiful picture of a
polar bear in a snowstorm every time.  (i.e. pure white.)
I'm sure this is also more "correct" than the ugly random
stuff in the real picture.

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