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The heatsink itself has the sex appeal of a football star: It's
big, and solidly built. The 120mm model in
particular has envy-inspiring proportions, perfect for those who like overcompensation
(I'm talking about cooling Intel's extra-hot Extreme Edition processors of course
what were you thinking?)
A giant apartment block of a heatsink.
Both the large and small models use the same basic heatsink structure. Four heatpipes bent into a U-shape are clamped to the base so that two sets of four heatpipe extensions rise from each end of the copper base. The width between the two clusters is the same for both models.
The two models are identical except for fin size and height.
In spite of the differences in size and weight, the two models have the same number
of fins: 38. This means that the smaller model will suffer not only because
of its size, but also because the individual fins are more closely spaced, by
~0.7mm. The fin spacing could have a real impact on how it performs under low airflow conditions.
It's not all bad for the smaller model though; it's quite a bit lighter (read:
safer) than its larger cousin and its smaller size makes it easier to use.
This building has 38 floors.
The practical effect of using the same heatpipe structure in both models is
that the position of the heatpipes relative to the fins is a bit different. Compare
the two models in the photo below:
The heatpipes are more centrally located in the larger model.
In the larger model, the two clusters of heatpipes are located quite far in
from the right and left edges of the fins, whereas the smaller model has the
heatpipes right near the edge. This means that the larger model should be able
to rely more heavily on system airflow to supplement the airflow from the main
fan, as there is less impedance along each edge.
The top-down comparison makes it quite easy to see where surface area has been
added to the larger model. The two models have exactly the same depth; the only
difference is in the width of the fins.
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