I understand perfectly why a heatsink with a 120mm fan can beat one with only a 92mm fan, but the CNPS9500 still does a very good job with a 92mm fan. The only problem I would have with a Scythe Ninja would be the addition of a 120mm fan onto it. Because of the size of the heatsink, the fan would infringe onto the RAM modules, and even if I were to change the slots, there may still be some problems, which is why I picked the CNPS9500 over the Ninja, because I knew the 9500 would fit inside my rig.