Originally posted by jgnfld Improved high ISO performance likely due to addition of additional processing chip. Higher max ISO. Higher fps rate. 4 mpix--19%--more pixels (24mp vs 20mp).
I don't consider 6 FPS vs 5.2 or 24MP to be significant difference. I think if one doesn't check the numbers, and use both camera in a blind test for normal use, one will never see the difference. Remember that in photography we speek in EV: double the shutter speed, or light gathering through 1 apperture stop and so on.
The high iso may make a visible difference at time, But only if you don't sacrify on lens to get that. If getting even a mere K50 allow you to get an f/2.8 zoom instead, you get much better results with that.