Very interesting, that looks like a Dual Quadro 4000 extender performance to me.
Cant wait to get my 470 :)
Also very interesting is the 6-GB-only information.
It seems its all about the cores.
A slice of color...
DaVinci 7.1.2 OSX 10.6.7
MacPro 5.1 2x 2,4 24GB
RAID0 8TB eSata 6TB
GTX 285 / GT 120
Extreme 3D+ WAVE
http://www.saschahaber.com