I plan to write it up for my site soon, until then read this topic taking note of my posts in the thread...
http://forums.procooling.com/vbb/sho...387#post102387
I'll take some measurements from this card, but as said you should take it as a guide only, (read the linked topic above for why).
saying that this Asus sink is one of the best fitting, combined VPU / Ram units I've come across, (on my sample at least). Past attempts by Asus and other makers were mostly poor in contacting either ram or GPU.
That is not to say it is a particularly good sink design imo, alu sinks to copper base have no thermal paste, and the cooper plate is just bent down to touch the ram meaning no direct contact to the sink over the ram area... pretty poor.