Roger's Profile

Member since April 1, 2005

  • Name

    Roger Howorth

  • Location:

    United Kingdom

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  1. Comment - Microsoft Completes 64-Bit Windows

    (Apr 1, 2005 - 5:46 AM)

    you get 64bit wide registers and 64bit 'words' to and from memory using both Opteron and EM64T. You don't get a full 64bit address bus - no need uless you can afford to put hundreds of TB of RAM in a server. I'm not sure, but I have heard that this version of Windows uses only 36 or so bits for addresses, so while registers and chip level instructions can handle it, the OS might not handle addresses that are bigger than 36bits.