AVC 112C81 Copper-Core Heatsink
Extruded
aluminum heatsinks are loosing their foothold as processors have increased in
heat output past the point where they can really cool "well." Or at least,
that's the indication for simple heatsink extrusion designs. In an effort to
extend the usefulness of the otherwise good extrusion dies, manufacturers have
taken to adding copper cores. The copper core in
the AVC112C81 extends roughly 5mm into the base in a pre-drilled hole, bringing better thermal conductivity into the
equation.
With the core of the silicon chip in direct contact
with the 30mm diameter copper core insert, heat energy can be transferred from the
microprocessor and spread out to a larger surface area before being picked up by
the aluminum extrusion. In that sense, the copper core enlarges the working
section of the extrusion, and that can help make the heatsink more efficient.
This cooling technology is also useful as the core
size of today's chips continues to shrink. A heatsink cannot cool a small 180mm
(squared) patch as efficiently as it can a much larger sized heat source. With
sizes that small, issues of lateral heat flow within the base of the heatsink
come into play, and that can hamper things.
The AVC 112C81 is AMD approved for processors along the lines of the AthlonXP 2600+ so we already know that performance is acceptable, but the real question remains - "just how good?"
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