The 95mm PWM fan is probably the most important aspect of the Arctic Cooling Alpine 64 Plus heatsink, the 9-bladed impeller utilizes AC's Fluid Dynamic bearings. Default fan speed is 2000RPM, the lowest rate is 600RPM. Power is supplied via a standard 4-pin PWM motherboard connector. The extruded aluminum fins are ~30x90mm in size. Each fin is 0.8mm thick and spaced 1.5mm apart.

The 95mm fan exhausts air out through a 75mm swath of continuous aluminum fins which are angled slightly away from the center-line of the cooler and also arched at the top (hidden behind the fan frame). The aluminum base plate is also arched, ranging from 10mm thick at the center to 5mm at the edges. There is a stepped overhang on either side of the Alpine 64 Plus for capacitor clearance. The stainless steel clips are each held in place with a single screw so we'd advise tightening it down tight when you install this heatsink.

The effective base area of the Alpine 64 Plus heatsink measures 75x65mm in size. The base has a linear sanded finish and comes with a pre-applied patch of grey thermal compound. The aluminum is generally flat, but not perfectly so.