Looks like a great VGA heatsink, would love to see some other reviews considering noise.
"The noise level quoted by Thermalright is 31 dBA. However, I believe the fan to be almost silent and I do not imagine it would be noticeable once in a case."
Could be very different results for different people.
As far as the silencer/vf700 results, in all reviews you'll see the silencer series hitting almost exactly the same temperatures at load across the board, but the vf700 having huge swings in temp results. It's all based on the case's air cooling...if you aren't able to maintain a low case temp with proper airflow, the Zalman's going to choke in every case (pun not intended). It's fan is just too small to create sufficient airflow for itself if the case is already clogged with hot air. This new thermalright, using an 80mm fan, will take care of that but at the expense of being louder.
Of course, this isn't the first heatpipe/fan combo for a VGA, and for $50 and ~31dba I'll stick with my Zalman until I get a hotter video card.
-z