Yeah, it's for looks only, obviously. That kind of cooling is never as effective, otherwise more would use it.
Nice, here we see a decent core overclock, yet that memory is where the sweet spot is as you can take it to 1600 MHz easily, this little tweak will bring you another 10% overall performance and bring the card close to GeForce 7900 GTX 512MB performance !
I love it when people throw out generalizations like these. As if you can't overclock the GTX and widen the gap in performance again?