Whats the real world power difference between E5345's and X5355's?

Discussion in 'Mac Pro' started by GermanyChris, Feb 10, 2013.

  1. GermanyChris macrumors 601


    Jul 3, 2011
    My Mac Pro has a pair of x5355's with a 120W TDP. After looking around the internet I ordered a pair of e5345's with an 80W TDP. The benchmarks show around 10% performance difference between the processor sets. How much less heat and less out of the wall can I expect in the real real world?

  2. PowerPCMacMan macrumors 6502a


    Jul 17, 2012
    PowerPC land
    Processors - E and X


    The wattage is lower using the "E" series processors and they have a lower TDP compared to the extreme, or "X". The performance would be negligible and not noticeable unless you are doing extreme video editing and or rendering + decoding.

    The E series are also energy efficient as they don't give off much heat compared to the X series. If heat is a concern for you then I would stay with the E series versus X series, but even I use X series on my 2010 Mac Pro and I have no problems with heat at all. Your milage may vary of course.


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