It's got two heatsinks so I doubt it doesn't outperform the VF700. I almost ordered the older brother recently, but decided to wait and stick with my 7900GT stock cooler to see how cool it would run on my new system, and I'm glad they did because they put the VF900 on the site. I'd definitely get it for those five extra bucks. Oh, and did I mention that the VF900 comes with Fanmate 2 too?
the vf900 is sick, i use it on my voltmod'ed 7900gt and its cooler than when i had the card at stock clock speed, stock voltage, with the stock cooler.