Second time you've asked this question - second time I'll give you the same answer.
From before:
This is something I got back after a quick Google search:
"Well, 720p HDTV, the most bandwidth-intensive format broadcast today, requires 37MHz of video bandwidth. So, in theory, any A/V receiver with more bandwidth than that will not affect the video quality of the high-def source. While manufacturers' bandwidth numbers may not be completely accurate or take into account the whole system, in practice, a receiver with 40MHz of switching or conversion bandwidth should preserve all of the source's information."
So, the difference in video quality between the two receivers for the best HDTV material will be zilch.