5D3 Vs. D800 DR @ 3200ISO+

Hi All,

I've spent hours looking at threads here without finding a definitive answer to this question, so sorry in advance if it's buried somewhere in the flames: I mostly shoot at 3200+ ISO at low lit night events and while I've read many posts about the greater DR of the D800 at low ISO I'm not quite clear if that advantage falls away as the ISO rises. I could post this in the Nikon forum, but I am a Canon shooter without any Nikon experiences, so I thought I'd start here as it is surely the most unbiased of forums

So in a nutsehell: At higher ISOs does the DR advantage of the D800 at low ISO (which most people seem to accept) falll away?

Thanks in advance,

Mart

PS. Have a 5D III and love it to death - AF is killer