GTX 680MX is practically a Desktop 680

Discussion in 'iMac' started by boto, Oct 24, 2012.

  1. macrumors 6502

    boto

    Joined:
    Jun 4, 2012
    #1
    If you look at this spec sheet on Nvidia's website, you will notice the value of cuda cores is the same as the desktop version. This will ultimately make the iMac top of the line model a true gaming machine. Sure, Apple will probably underclock the settings, but it will perform somewhat equivalent to a desktop 680, which is a big deal in my opinion. I'm very surprised Apple would offer an even higher graphics card that just recently released, rather than using the GTX 680m, which we all expected.

    I hope we see more details of this GPU. It would be interesting to see the benchmark comparison between this and the GTX 680m, although Nvidia claims it is up to 30% faster than the AMD 7970m so we can expect maybe 5~7 FPS game increases for intensive games like BF3. Nonetheless, it is incredible that Apple has figured out a way to manage a high-end GPU in such a slim design.
     
  2. macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #2
    It is an under-clocked version of the desktop GTX 680. Whether Apple chooses to muck about with the core or memory clocks remains to be seen. There are quite a lot of comparisons between the 7970M and the 680M out there already.

    http://www.anandtech.com/show/6343/avadirect-clevo-p170em-amds-hd-7970m-got-game

    http://www.anandtech.com/show/6369/avadirect-clevo-p170em-part-2-gtx-680m-grudge-match

    [​IMG]

    The 680MX should be even faster, but no benchmarks since it only appeared on Nvidia's site today and I've never heard of it until yesterday.
     
  3. macrumors 6502

    Joined:
    Aug 25, 2010
    #3
    It looks unbelievable! can't wait to get my hands on it...

    Seems odd that so many people are disappointed with the iMac update, I think it's the biggest update it's ever had!
     
  4. macrumors 601

    GermanyChris

    Joined:
    Jul 3, 2011
    Location:
    Here
    #4
    It looks to be pretty good that is until next year...

    The inherent problems with AIO..
     
  5. macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #5
    If they can keep the thermals within acceptable ranges, then the 2012 27" BTO will be an absolute monster.
     
  6. macrumors 6502a

    spcdust

    Joined:
    May 6, 2008
    Location:
    London, UK
    #6
    That would be my concern, the current iMac with the AMD Radeon HD 6970M gets very hot when gaming or doing any GPU intensive tasks, hence I use SMC Fan control to give the fans a boost. Some have claimed that it's the heat from the GPU that has caused screen discolouration requiring a screen replacement - on my part on both my 2009 and 2011 iMac I've had to have the screen replaced and at work we have had two iMac screens replaced.

    Apple have in the past done some serious under clocking to reduce heat, or have been sneaky with their naming conventions of the GPU's which would be a serious blow to everyones hopes of a decent GPU. I guess until a proper tear down it's all up for debate - however how much of a premium price is the 27" iMac going to be with the configuration required to make it a truly great iMac?
     
  7. macrumors newbie

    Joined:
    Oct 24, 2012
    #7
    Heat

    I will be curious to see if they use the new fan design that's in the macbook pro retina's. I like the white noise in mine it definitely is loud when playing a game , I took back my i7 air because it sounded like a hair dryer when working for a while in a virtual machine.
     
  8. macrumors member

    Joined:
    Nov 10, 2009
    #8
    As someone who has made 3 trips to the Apple Store a year since 2009 (and also owned every 27" iMac released since 09) to have my screen replaced due to "black smudges", I do not believe my specific issues ever had anything to do with heat.

    It always seemed to be dust of some sort getting behind the LED. My hope is that the new model iMac, with essentially no visible vents or entry ways for dust, will actually improve on this longstanding issue.

    From what I can tell, it seems to be the most "sealed off" iMac ever created. I would guess this would lead to a hotter running system, but if it means no more screen replacements due to smudging, I will be ecstatic.
     
  9. macrumors regular

    Joined:
    Feb 9, 2010
    #9
  10. macrumors 65816

    henrikrox

    Joined:
    Feb 3, 2010
    #10
    They have removed the gap between the glass and the display on the new imac.

    Therefor, now you wont be getting dust between the glass and the display anymore :)
     
  11. theSeb, Oct 24, 2012
    Last edited: Oct 24, 2012

    macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #11
    That's just the GTX 680M, which is an under-clocked desktop GTX 670. The GTX 680MX is too new for benchmarks. It's faster than the 680M and is actually an underclocked desktop GTX 680. It appeared on Nvidia's pages today.

    In a nutshell, the GTX 680MX is even faster than the benchmark you've just posted. However, I have my issues and reservations about using PassMark for any kind of comparisons. That's a topic for another day though.
     
  12. Gauntlet, Oct 24, 2012
    Last edited: Oct 24, 2012

    macrumors newbie

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    Aug 17, 2010
    #12
  13. macrumors regular

    Joined:
    May 4, 2007
    #13
    Anyone know how this will compare with my iMac with a 5750 in it? Time for an update soon I guess.
     
  14. macrumors 6502a

    Joined:
    Oct 4, 2006
    #14
    Wonder when it'll be on notebook check and well see what setting we can play games on.
     
  15. macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #15
    The 680M is currently the fastest mobile GPU there is. It's just slightly slower than the desktop 670. The 680MX, which is not in any device right now and appeared on Nvidia's product pages this morning is even faster than the 680M.

    Your 5750M is very far behind and many times slower.
     
  16. macrumors 68000

    Joined:
    Jan 10, 2008
    #16
    IT's a great update, but buying an Imac for gaming ...not so great.
     
  17. macrumors regular

    Joined:
    Oct 24, 2003
    Location:
    Hong Kong
    #17
    I posted on this earlier today, and would like to state clearly that some of you posting seem to have more money than common sense!

    On the benchmark links I provided earlier today on mobile GPU's between the top end AMD Radeon mobile and NVIDEA GTX680m, overall, it was considered that the NVIDEA card pipped the AMD Radeon - although in tests conducted on 15 games, the AMD bested 10 of them and in CAD benchmarks was far superior to the GTX680m.

    The conclusion was thus, yes overall the GTX680m was a better performing card, but not by much, the major complaint being that the GTX680m carried a US$300 price premium over the AMD offering - now thats huge folks and how much of a premium will Apple charge us to install said card.

    In a nutshell, I'd have preferred the AMD with 2GVRAM at a reasonable upgrade cost, rather than the probable US$250-400 premium we can expect from Apple on the BTO.

    For these prices, I think the Hackintosh is the way to go, if not pure PC builds if its gaming you are interested in.
     
  18. macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #18
    The CUDA cores will make it great not just for gaming.
     
  19. macrumors 68030

    forty2j

    Joined:
    Jul 11, 2008
    Location:
    NJ
    #19
    I disagree.. the DirectX->OpenGL gap is narrowing; it could actually be closed in a couple years. You can also throw Windows on it if you really want DirectX performance. This won't give you exactly the performance of dual desktop GTX 680's, but it will scream. If you're willing to sacrifice about 10-15% performance for a better all-around OS, an iMac with 680MX will be a fantastic choice.

    I'm assuming they have a heat solution; if they don't, they'll be hearing from me quite often. ;-)
     
  20. macrumors 6502a

    spcdust

    Joined:
    May 6, 2008
    Location:
    London, UK
    #20
    The dust was never between the glass and the display - several people have removed the glass and confirmed this otherwise it would be a simple case of wiping the inside of the glass. The issue is the rear of the of the LCD matrix not being sealed /isolated from the innards of the machine. I believe the fans pull the dust through and then deposit it in the screen matrix. This may be exacerbated by airflow patterns, which fans are pulling the strongest and possibly dust being "burnt" by the heat.


    The new iMac has the vents all along the bottom if you look at the pictures - my concern would be it's still pulling dust through and unless the screen is now completely isolated at the rear from the machines innards we may see the same issue occurring. Hopefully Apple have addressed this on this revision but the screen lamination, as they have outlined so far, may not have any effect on this issue.
     
  21. macrumors 6502

    Joined:
    Apr 30, 2012
    #21
    I've heard that the nvidia 6-series GPU's runs much cooler than the previous generation, is this true?
     
  22. macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
    #22
    The 675MX is slightly slower than the 560Ti according to notebookcheck. The 680M is slightly slower than the 580. I would suspect the 680MX to fall between a 670 and 680, probably nearer the 670. Its amazing what they have done with the power budget considering that the desktop 680 is well over 200W under load.
     
  23. macrumors 68030

    forty2j

    Joined:
    Jul 11, 2008
    Location:
    NJ
    #23
    The Kepler ones, yes. There are some 6-series Fermi chips out there just to keep us confused, but as I expected Apple is steering clear of those.
     
  24. macrumors member

    Joined:
    Aug 26, 2010
    Location:
    Bochum, Germany
    #24
    What do you think will the 680MX BTO upgrade cost?
     
  25. karpich1, Oct 24, 2012
    Last edited: Oct 24, 2012

    macrumors regular

    Joined:
    Dec 18, 2007
    #25
    If that is the post I'm thinking of.... you weren't comparing apples to apples (so to speak) if you took the Alienware into consideration.

    The benchmarks listed one nVidia laptop by Schenker, one AMD laptop by the same Schenker, and ANOTHER AMD laptop manufactured by ALIENWARE

    CAD, no contest. AMD blew nVidia away.

    Games though, comparing only Schenker to Schenker (ignoring Alienware) it was nVidia 6 / AMD 9. Most the wins/losses were relatively close (a couple of percent). Though each had 1 or 2 insane wins that I attribute to nVidia or AMD tailoring their drivers to do really well in Game X for benchmarks.




    Price wise though, I don't know if one is better than the other. Since finding stable/good Prices for Mobile cards is kind of odd.
     

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