Quote:
Originally Posted by rowan
Plus the more recent ones seem to be less chunky and more cheaply made... the one on the left is from a Pentium D circa 2005, the one on the right from a more recent dual core CPU. It's about a third of the weight and has no copper.

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The recent ones seem less chunky because the Core family CPU's run much cooler than Pentium D's. And the Core 2 Quad heatsinks do have a copper base...