Hi I'm putting a new system together and I chose the GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB 256-bit GDDR5 PCI Express card. Over in the new builds I asked if everything looked OK and I got a response :" That Gigabyte cooler on the GTX 670 pumps air back into the case, where the fans have to deal with it. Don't get it, get the Asus GeForce GTX 670 2GB ." I saw in Toms comparison awhile back that it was highly touted as the best all around GTX 670. Should I go for it or is it problematic ?
Most aftermarket/custom heatsinks(Like gigabytes 3 fan monster) blow air back into the case. So long as your case has good ventilation(1 rear/top 120/140mm fan should be enough), I do not think it will be an issue.
The lower temps of this type of cooler also help it have less impact on case temps.
While not as "Good" as blowing all the hot air out(but in many cases the video card temps are still lower with this type of heatsink because they move lots of air), it should still work fine for most users.