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Sunbeamtech Twister 120 Heatsink Review
Sunbeamtech Twister 120 Heatsink Review
Abstract: the Sunbeamtech Twister 120 heatsink is built around three 8mm diameter copper heatpipes which are exposed at the base. The heatpipes pass through the raw aluminum fins in a chevron shape.

 Manufacturer  Category  Published  Author 
Sunbeamtech   Cooling / Heatsinks   Jan 12, 2011   Max Page  

Home > Reviews > Page: 360° View - Sunbeamtech Twister 120 Heatsink

360° View - Sunbeamtech Twister 120 Heatsink

Information on Frostytech's test methodology is available here.

Both 120mm fans spin at 2000-1000RPM and draw power from separate 3-pin motherboard fan headers. Eight rubber vibration absorbing posts are used to hold the fans. The three 8mm diameter copper heatpipes rise up through raw aluminum fins which have a dimpled surface texture on each side. Fins measure 0.4mm thick and are spaced 2.0mm apart.

The Twister 120 heatsink stands 154mm tall, the bottom-most fin is 41mm above the CPU socket for clearance. The three heatpipes are positioned side to side where they make direct contact with the processor and angle outward slightly to form a chevron as they pass through the raw aluminum fins. The base incorporates a 10mm thick aluminum section to provide support for clamping, with a further 10mm of extruded fins for a little extra cooling.

Looking at the Sunbeamtech Twister 120 heatsink from the top you see the dimpled aluminum texture fins. The chevron pattern of heatpipes helps to ensure equitable heat conduction to the location receiving the most airflow from the fans. The base measures 45x41mm in size and features three exposed copper heatpipes.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineers straight edge or proven flat surface, in two axis.

The base of Sunbeamtech's Twister 120 heatsink has a surface roughness of approximately 16 microinches, which is considered very good. The base is machined perfectly flat in both axis, with a slight grooved finish from the tooling. The copper and aluminum parts are flush.

Sound level measurements are coming up next on Frostytech...

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Table of Contents:

 1:  Sunbeamtech Twister 120 Heatsink Review
 2: — 360° View - Sunbeamtech Twister 120 Heatsink
 3:  Sound Level Measurements: Which Heatsink is Quietest?
 4:  AMD Heatsink Temperature Comparisons
 5:  Intel LGA775/1156 Heatsink Temperature Comparisons

List all Sunbeamtech heat sinks that Frostytech tested?

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