In comparison to its predecessor the rev 2 gx 7 included the slim 12 pl blue fan which is more compact allows for better ramsink clearance and even easier installation the slim 12 pl blue has a hydro dynamic bearing and a dimension of 120x120x158 mm in addition the fan features blue ledacirceurotrades the fan also includes a premium pwm control so the temperature can be controlled precisely by the bios further high end gcextreme thermal compound is included in the package traditio