Can the MP being upgraded with this

Discussion in 'Mac Pro' started by waloshin, Mar 16, 2009.

  1. phairphan macrumors 6502a


    Sep 21, 2005
    Reject Beach
  2. MadisonTate macrumors member

    Jun 8, 2008
    That would be a downgrade, technically. 6 cores < 4 cores with HT (8 threads)
  3. tobyg macrumors 6502a

    Aug 31, 2004
    Yeah, not possible... but also wouldn't be necessarily be a downgrade in terms of cores.

    6 full cores vs. 4 cores + 4 hyperthreaded, I'll take 6 cores.

    I don't know how much more improved hyperthreading is in the newer cpu's but in the old p4 days, a P4 with hyperthreading vs a dual core P4, the dual core would of course win every day. Hyperthreading, depending on the application, was advertised to get you up to 30% improvement. Another core gets you 100%.

    It is a downgrade in terms of everything else as the 7400 series is based on older architecture. No integrated memory controller, no quickpath, no sse4.2, etc.
  4. Tesselator macrumors 601


    Jan 9, 2008
    Me too! The virtual cores only add about 20% and not 100% like an actual core.

    So 6 is greater than 8 in this case! :D

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