I hate to link to the Register but that is where I saw the story originally.
Fan-free...
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Following our report last week that AMD was experimenting with a new pure form of silicon (later confirmed by AMD Zone), news reaches The Reg of Chimpzilla's progress with the upcoming Palomino.
A new natural substance that disspates heat much better than ceramics is being tested and a Palomino prototype is reported to be running in AMD's Fab25 in Austin at 1.5GHz with a simple passive heatsink.
Details of temperatures have yet to leak, but the test chip is said to use aluminium, rather than copper interconnects.
A Fab 25 insider said Palomino was "looking good". ®
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Looks interesting, laptops, quiet computers.