iMac 27" i7(old) vs i5(New)

Discussion in 'iMac' started by penduboy, May 21, 2011.

  1. penduboy, May 21, 2011
    Last edited: May 22, 2011

    penduboy macrumors member

    May 9, 2011

    I am looking to buy my first iMac. The refurbished deal on old 27" iMac seems very tempting but want to get some expert opinions before I go ahead an make my purchase. I am holding my purchase for iPod promotion deal with 27" iMac (Higher end). Could you please advice me which of the following two models works best for me (or offer best value for money).
    OK, question . . .

    I'm looking to get a 27" iMac. The "older" models are on sale and come equipped with a video card with twice as much ram. So I'm wondering, which of these will "appear" to be faster?

    2.93GHz Core i7 Quad-Core (Refurbished) Last years model
    4GB (2x2GB) RAM
    1TB 7200rpm Hard Drive
    ATI Radeon HD 5750 1GB Graphics
    Price $1569

    3.1GHz Intel Core i5 Quad-Core
    4GB (2x2GB) RAM
    1TB 7200rpm Hard Drive
    AMD Radeon HD 6970M 2GB GPU
    Price $2099 - $100 (student discount) - $200 (for iPod sale) = $1799

    I am planning to use it mostly for Photoshop, lightroom, HDR work, and some time after effects. Am I going to notice any difference in performance between these two?
  2. penduboy thread starter macrumors member

    May 9, 2011
    WoW 71 views but no response!

    Is it a hard question? or already answered? I have searched this forum but couldn't find any thread where I can find this answer.

    Please help me to make my decision.

    Thanks, Pendu
  3. leman macrumors G3

    Oct 14, 2008
    Well, the 2011 iMac has a faster GPU, CPU-wise they are more or less even. The new i5 will beat the old i7 in many common tasks, and the old i7 may be a bit faster for video encoding and other HT-friendly tasks.

    The 2011 iMac will be clearly faster for gaming, and may be faster in everyday work (but nothing noticeable).
  4. penduboy thread starter macrumors member

    May 9, 2011
    Thanks for your comment. This means the newer iMac 3.1ghz i5 is a better processor than last years 2.93ghz i7. I have no doubt about the GPU, 6970m in new iMac is one of the top line GPU available.

    Thanks once again for your response.
  5. azax456 macrumors newbie

    May 6, 2011
    Scottsdale, AZ
    Did you mean a 3.1 i5, since you can't upgrade the graphics on the 2.7 i5..?
  6. penduboy thread starter macrumors member

    May 9, 2011
    Thanks for pointing this out....yes I mean i5 3.1....and corrected it in my post as well.

    Thanks again......Pendu
  7. flipster macrumors 6502a

    Mar 14, 2010
    I would get the new one, just for the new option of thunderbolt.

    Granted nothing uses it yet, but it's still a very new technology and who knows what we could get out of it.
  8. TheNakedMan macrumors member

    May 20, 2007
    I pulled the trigger on 27inch i7 last tuesday. My refurbished is be delivered next Wednesday.

    I'm getting a 1GB video card in it. I think it's a great value with the i7.

    The 1gb card in the older iMac I think will be on point for most things I do.

    I took the savings and I might be picking up an ipad2. I'm not looking for thunderbolt...if USB3 was on the new one, I'd go for the new one.

    That's my thoughts.
  9. penduboy thread starter macrumors member

    May 9, 2011
    Thanks for your responses. I really appreciate that, I think I have made up my mind to buy a new one as it is worth the upgrade for graphic card, sandy bridge processor and thunderbolt.

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