PowerPC Processor Roadmap

ezavada writes "Motorola has posted their PowerPC Processor Roadmap. Looks like they expect the G4 to go to 1 GHz, and the G5 to 2+ GHz. There is also a story about this in MacWeek. " The current road map goes out until 2009, while another interesting tidbit is that Motorola expects to continuing making G4s even with the introduction of the G5 and G6-embedded chips perhaps?

Comments

Re:Microwave processor emissions

[Jordy]

From what I understand, prolonged exposure to low wattage microwaves can be damanging to exposed soft tissues in your body (such as eyes), but the output of a CPU probably won't do it.

There are studies on metabolic, reproductive, and neurological changes associated with low intensity EMR.

Anyway, here are a few facts from the WTO study on EMF:

• RF Fields above 10 GHz are absorbed at the skin surface, with very little of the energy penetrating into the underlying tissues.
• For adverse health effects, such as eye cataracts and skin burns, to occur from exposure to RF fields above 10 GHz, power densities above 1000 W/m2 are needed. Such densities are not found in everyday life. They do exist in very close proximity to powerful radars. Current exposure standards preclude human presence in this areas.
• RF fields between 1 MHz and 10 GHz penetrate exposed tissues and produce heating due to energy absorption in these tissues. The depth of pentration of the RF field into the tissue depends on the frequency of the field and is greater for lower frequencies.
• An SAR of at least 4 W/kg is needed to produce adverse health effects in people exposed to RF fields in this frequency range. Such energies are found tens of meters away from powerful FM antennas at the top of high towers, which makes these areas inaccessible.
• Most adverse health effects that could occur from exposure to RF fields between 1 MHz and 10 GHz are consistent with responses to induced heating, resulting in rises in tissue or body temperatures higher than 1C.

Anyhow, for more information visit the WTO EMF web site.

It might also be noteworthy to know that a lot of cases today probably won't shield well against frequencies above 1 GHz so you might start having problems with phones, radios and the like.

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