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Yes, according to Wikipedia, IBM was shipping 5.0GHz POWER6 processors by 2008: https://en.wikipedia.org/wiki/POWER6 https://en.wikipedia.org/wiki/POWER6 The a
by profquail 13y ago
Yes, according to Wikipedia, IBM was shipping 5.0GHz POWER6 processors by 2008: https://en.wikipedia.org/wiki/POWER6 https://en.wikipedia.org/wiki/POWER6
The article cited in the Wikipedia entry is dated 08-Apr-2008: http://www.theregister.co.uk/2008/04/08/ibm_595_water/ http://www.theregister.co.uk/2008/04/08/ibm_595_water/
- apaprocki 13y agoDon't let the numbers fool you, though. POWER6 achieved those speeds due to a change in chip architecture that actually wound up making them worse processors than the much lower clocked POWER5s in a lot of situations. IBM reversed course and changed the chip architecture back for the POWER7s, which are clocked lower and outperform the POWER6s.
- bretpiatt 13y agoI'm not an expert here but it looks like IBM is back up to shipping 5.5Ghz chips in the EC12 as of December 2012. Are these still POWER6 chips as an option or fixed and faster POWER7? PDF Redbook reference: http://www.redbooks.ibm.com/redbooks/pdfs/sg248050.pdf http://www.redbooks.ibm.com/redbooks/pdfs/sg248050.pdf
- wmf 13y agoSystem z mainframes use z/Architecture processors, not POWER. POWER7 runs around 4 GHz.
- apaprocki 13y agoAs sibling mentions, they're not POWER. The max Ghz for each rev is POWER5 2.3Ghz, POWER6 5Ghz, POWER7 4Ghz.
- filereaper 13y agoapaprocki, you've been absolutely spot on. Highest clocking POWER processor offered is the 4.42 Ghz P7+ System p 780: http://www-03.ibm.com/systems/power/hardware/780/specs.html http://www-03.ibm.com/systems/power/hardware/780/specs.html And yea, POWER 6's design was a bad decision.