Author: Bo Persson
Date: 12:17:56 04/16/05
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On April 16, 2005 at 12:32:53, Mike Byrne wrote: >On April 16, 2005 at 02:48:03, Bo Persson wrote: > >>On April 16, 2005 at 01:21:40, Mike Byrne wrote: >> >>>On April 16, 2005 at 00:16:58, S J J wrote: >>> >>>> >>>> ... what is the expected impact to chess programs. Must they be re-written >>>>for the new processor, or simply re-compiled? >>>> >>>>http://www.theinquirer.net/?article=22556 >>>> >>>> >>>>Steve >>> >>>A dual core processor has two processor cores on one die essentially like having >>>a dual processor system in one processor. >>> >>>Any program that is SMP aware will be able to take advantange of a dual core >>>system. If you favor a Windows OS, that also means you must have a Windows >>>"Pro" Edition versus a "Home" edition. >> >>It actually does not. Microsoft licenses their software per chip, not per core. >> >>XP Home is the same code as XP Pro, it is just a configuration issue. And a >>price difference. >> > >Are you sure ? > >Direct quote from Microsoft.com > >"Windows XP Professional supports symmetric multiprocessor (SMP) designs that >employ up to two CPUs. If you install Windows XP Home Edition on an SMP system, >it will not use the second processor." But this isn't a second processor, it is a second core. :-) XP Home does support Hyperthreading, with 2 logical processors on one physical CPU. For all we know, a dual core chip will work the same. Of course there cannot be any official MS support for the products until they are actually released. :-) Here is a link to another guy trying to sort this out: http://forums.amd.com/index.php?s=62e453bfcdd0c6273e729cfa234c3d2d&showtopic=44003&st=0&#entry388503 On the other hand, to get the full performance out of these chips we need Windows XP *x64* anyway. That one only seems to come in one variant, Professional. Bo Persson
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