Scythe Ninja 5 CPU Air Cooler Review The Scythe Ninja 5 is a very big CPU heatsink with a lot of cooling fin area, so we expect a lot out of it. The Ninja 5 also comes in a push / pull configuration out of the box. It has cutaways for taller DIMMs and professes to be "ultra silent." Let's put it on this highly overvolted Ryzen 7 and see how it handles over 140 watts of power. If you like our content, please support HardOCP on Patreon. Scythe has informed us that the MSRP of this unit has been changed to $59.95 for North America.