i7-4990 and E5 v2

Discussion in 'Mac Pro' started by malana, May 9, 2013.

  1. malana macrumors member

    Joined:
    Dec 10, 2009
    #1
    question for the tech-savvy:
    is there any difference between the xeons and the i7s besides the multi-cpu ability of the xeons?

    i7-4990 could be a nice singlecore in a mac pro - and probably cheaper than the E5 v2.
     
  2. Umbongo macrumors 601

    Umbongo

    Joined:
    Sep 14, 2006
    Location:
    England
    #2
    Not all Xeons support multi-CPU configurations. There are Xeons with the same specifications as the i7-3820, 3930K and 3960X. The i7 allowing overclocking and the E5 supporting ECC memory being the main differences for workstation usage.

    For example: http://ark.intel.com/compare/63697,64601

    The i7-4990 was only a rumoured processor and doesn't appear to exist. Intel have 3 i7s as they have for years. The i7-4920k, i7-4930k and i7-4960X. So expect the E5-1620V2, E5-1650V2 and E5-1660V2 to match them specification wise with the differences as they are now.

    Which means the E5-1620V2 and E5-1650V2 are the only two worth using. A Mac Pro wouldn't be cheaper if Apple used i7s and would then not support 16GB and 32GB DIMMs. The 200MHz clockspeed and 3MB L3 cache you get from the E5-1660V2 aren't worth $600.
     
  3. malana, May 9, 2013
    Last edited: May 9, 2013

    malana thread starter macrumors member

    Joined:
    Dec 10, 2009
    #3
    thank you for your answer, the lack of ECC makes the i7 unlikely.

    according to this intel roadmap, there are some cpus coming in Q3/2013 - one of them seems to be the i7-4990, at least that's what all pages write (although they prolly copy from each other).

    edit: well, that might be the rumour you were talking about. damn, only 3 new i7s :( http://chinese.vr-zone.com/61446/in...k-4820k-will-available-on-september-04302013/

    http://www.legitreviews.com/news/14815/

    quoted from there:
    It's believed that four CPUs will be launched, bearing the following names: Core i7-4930, Core i7-4960, Core i7-4970 and Core i7-4990.


    [​IMG]


    singletreaded they won't be much faster than nowadays cpus, but a 12core single cpu would do the trick for me for 3d rendering.

    well: not in this year, it seems.

    [​IMG]
     
  4. Umbongo macrumors 601

    Umbongo

    Joined:
    Sep 14, 2006
    Location:
    England
    #4
    Yeah I believe it was this site that claimed those part numbers, with no source. Others went with it as they do these days.
     
  5. lewdvig macrumors 65816

    Joined:
    Jan 1, 2002
    Location:
    South Pole
    #5
    6 cores + HT < 12 cores
     
  6. malana thread starter macrumors member

    Joined:
    Dec 10, 2009
  7. thekev macrumors 604

    thekev

    Joined:
    Aug 5, 2010
    #7
    It wouldn't budge pricing anyway. If you look at those i7s and find the Xeon 16xx equivalent, they're usually identical in pricing. Sometimes there's a difference of $10-20 retail.
     
  8. malana thread starter macrumors member

    Joined:
    Dec 10, 2009
    #8
    jsut got offered a lenovo dual c20 system with 2x 5650 hexacores for 1200 euros (with receipt). I think I'm gonna join the dark side after all these years (win7), everything there is much cheaper. a quadro k2000 and I am sorted for the next 6 months. only 24 gigs of ram tho.
    (successors of) apple, why you do this to me :/
     
  9. thepawn macrumors 6502

    thepawn

    Joined:
    May 27, 2009
    #9
    From what I remember in the discussion about these a while back there was a difference in the heat sync plate on the top of the CPU that made the i7 a slight challenge to get installed with Apple's heat syncs.
     

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