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NZXT Respire T20 Heatsink Review
NZXT Respire T20 Heatsink Review
Abstract: On the dock today is NZXT's Respire T20 heatsink. The Respire T20 stands 160mm tall, putting it in the class of full tower CPU coolers. At the heart of this 510 gram heatsink are three heatpipes; two 6mm diameter and one 8mm diameter, all exposed at the base for efficient heat conduction.

 Company link  Category  Published  Author 
NZXT   Cooling / Heatsinks   Jan 01, 2013   Max Page  
Home > Reviews > Page Title: 360° View - NZXT Respire T20 Heatsink

360° View - NZXT Respire T20 Heatsink

Information on Frostytech's test methodology is available here.

NZXT's Respire T20 heatsink ships with a 120mm fan. The 160mm tall cooler has two 6mm diameter copper heatpipes and one 8mm diameter heatpipe. All three are exposed at the base of the cooler to make direct contact with the processor IHS. Each aluminum fin measures 0.4mm thick and is spaced 2.0mm apart. The bottom-most fin is elevated 3mm above the base for motherboard clearance.

The copper heat pipes are set into a 12mm aluminum base plate and exposed at the base. The base pate provides support for the mounting brackets which clamp over it. From the rear you can see the bend in the middle of the aluminum cooling fins.

The exposed heatpipes on the base of the NZXT Respire T20 create a usable surface area of 35x36mm. Looking at the top of the heatsink, we see the heatpipes are spaced 5-8mm from each other and 67mm across so as to be in the highest airflow region.

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 engineer's straight edge or proven flat surface, in two axes.

The exposed heatpipe base of NZXT's Respire T20 heatsink has a sanded finish, with a surface roughness of approximately ~64 microinches. The base is slight convex in one axis and generally flat in the opposite.

Up next, heatsink sound level comparisons....

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Table of Contents:

 1:  NZXT Respire T20 Heatsink Review
 2: — 360° View - NZXT Respire T20 Heatsink
 3:  Heatsink Sound Level Comparison
 4:  AMD Heatsink Temperature Comparisons
 5:  Intel Heatsink Temperature Comparisons

List all NZXT heat sinks that Frostytech tested?

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