OCIA.net takes a look at the Sytrin KuFormula VF1 Plus VGA Cooler in their latest review.
I don't know about anyone else, but after running these tests I was left speechless. I have always considered Thermalright heatsinks as the best in the business, and here it just got trounced by the Sytrin VF1.Sytrin KuFormula VF1 Plus VGA Cooler Review
For the maximum overclock run I even replaced the Thermalright's stock fan with 2 high-speed 80mm fans pushing 150cfm total, and even so the Sytrin easily outperformed it in both temperatures and maximum overclock. With the stock V-1 fan the max overclock on the core was only 570.