I have not used a DF-85. But from looking it over, its basically the same over all design, with the biggest different being the smaller top fans. (and quite honestly I find the look rather ugly) I wouldn't give up my top monster. It pulls a ton of air with no noise. -- Intel Q6600 @3400Mhz/GA-EP35-DS3P/4x 2048Mb G.Skill/WD Raptor 300Gb/3x WD20EADS 2TB/2x PNY GTX 260/Silverstone 850W/Custom water cooler
