If your case has low airflow, do not get the Gigabyte Windforce model
. They require a good bit of airflow (or at the very least efficient exhaust) otherwise they will dump oodles of heat into the case. The WindForce design is fantastic for moderate to high airflow cases, but in cramped spaces and low-airflow environments they just are not ideal. They have heatsink fins that run perpendicular to the length of the card which causes heat to exhaust toward the motherboard and toward the case side panel. I believe that heatsink fins that run parallel to the length of the card and exhaust heat from its front and back are more efficient in lower airflow situations as it allows some heat to exhaust outside of the case or at least to cooler areas of the case.
I won't be satisfied until GTX 670 models are released with slightly longer PCBs and radial, GTX 560 Ti-esque coolers, which is more than doable thanks to its 175w or so TDP. (GTX 560 Ti TDP is 170w) The performance with these cards is fairly epic, but I'm a bit cheesed off at nVidia for the cooling and PCB design.
My two cents, anyway. Disregard if you have solid airflow or do not mind higher noise levels that result from using this style of cooler in a low airflow environment.
Also, Galaxy is a fine brand Edited by staryoshi - 5/12/12 at 1:12pm