Linked by Nicholas Blachford on Wed 9th Jul 2003 16:43 UTC
Talk, Rumors, X Versus Y This article started life when I was asked to write a comparison of x86 and PowerPC CPUs for work. We produce PowerPC based systems and are often asked why we use PowerPC CPUs instead of x86 so a comparison is rather useful. While I have had an interest in CPUs for quite some time but I have never explored this issue in any detail so writing the document proved an interesting exercise. I thought my conclusions would be of interest to OSNews readers so I've done more research and written this new, rather more detailed article. This article is concerned with the technical differences between the families not the market differences.
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RE: Nicholas Blachford
by Roy on Thu 10th Jul 2003 15:21 UTC

Yes there are low power x86s but the latest G4s (7447) go down to 7.5 Watts at 1GHz. There's nothing in the x86 world that even comes close to that level of performance at such a low power consumption."

Thermal Design Power of a ultra-low voltage PentiumM at 1GHz is 7 Watts. While TDP is not equal to power usage, it does scale fairly linearly, so I doubt its power usage is above 10 Watts (could be wrong). The PentiumM performs better per clock than a P3, so it shouldn't be too far off from the G4 (though certainly not quite as fast per clock). While not quite as fast and possibly not quite as energy efficient, this is certainly in the same ballpark as the G4.

RE: G5 Cube
I too would like to see a G5 Cube. It would probably need a fan (no convection cooling), but I think it could be kept fairly silent. BTW, I've heard that the Shuttle XPCs are NOT terribly silent. :-( You could probably mod it to be silent, but it might require lowering the clock and possibly the voltage of the CPU. Apple pretty much has the market cornered on cool looking AND quiet.