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    AMD's Desktop 78xx/77xx Families Fully Detailed. 79xxM/78xxM speculation may now begin.

    Discussion in 'Gaming (Software and Graphics Cards)' started by Kevin, Dec 29, 2011.

  1. Kevin

    Kevin Egregious

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    [​IMG]
    [​IMG]

    I think it's safe to guess that this is the launch lineup:

    7870 = 7970M
    7850 = 7950M
    7790 = 7870M
    7770 = 7850M

    Then the 7890 releases in Q2, later to be seen as the 7990M?

    If I'm right, this next generation will truly be a huge leap ahead of the current 6000M.
     
  2. Star Forge

    Star Forge Quaggan's Creed Redux!

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    Looks good. Hope they are still in MXM 3.0b format.
     
  3. Devenox

    Devenox Notebook Evangelist

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    Seems like that's a possibility, but 7890 will never be a mobile chip, 384bit+GDDR5 is out of control for notebooks, even for fat 18" models. Also keep in mind they will have 28nm for the next 2 years, so they possibly want to do something like they did with the 5870M and 6990M.

    Looking forward to see a Cape Verde mobility chip in my next notebook!
    I would also like to see a 192bit+GDDR5 mobile chip
     
  4. Kevin

    Kevin Egregious

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    Good point on the 384-bit. Though I suppose they could easily just chop it down to run on a 256-bit interface instead, more suitable more the mobile environment.
     
  5. Zymphad

    Zymphad Zymphad

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    I think the 7850 will be the 7970M underclocked at 800/1000. I just hope Asus uses it in their next G series. Or I'll be looking at a Clevo instead this year.
     
  6. maxheap

    maxheap caparison horus :)

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    oh no, I misread it, I think 7870 is 7990m, well, it is still ridiculously good for mobile environment :)
     
  7. Kevin

    Kevin Egregious

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    I will be incredibly disappointed if the 7850 is the 7970M, as that's barely an improvement over the 6990M's core count.

    And I wouldn't expect to see Asus using an expensive, 100W card in their notebooks, as they haven't done it yet.
     
  8. maxheap

    maxheap caparison horus :)

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    well, current lineup looks that way unfortunately :( I don't think they will change their lineup all of a sudden.. well, who knows :D
     
  9. Devenox

    Devenox Notebook Evangelist

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    Shaders would be clocked higher + you cannot compare the old 5VLIW and the new GCN architecture from ATI. The last one is MUCH faster with the same core count
     
  10. Zymphad

    Zymphad Zymphad

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    7870/7850 will not be GCN, GCN will only be in the 7900 desktop. The VLIW 4 was only used in the 6900 desktop series, so it will be new for mobile.

    Unfortunate even with 7970 shipped for review, AMD still does not support Driver Command Lists! Nvidia has supported it for over a year now.
     
  11. Phinagle

    Phinagle Notebook Prophet

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    You'd need to compare the HD7970M to the HD6970M though, in which case the percent increase in cores is the same as what the HD7970 got over the HD6970 on the desktop cards. TMUs would also almost get doubled if the HD7970M was based on the HD7850, and while there would be fewer ROPs compared the HD6970M efficiency has been improved with GCN and 1:1 each unit is performing better.

    What's more it's important to note that there are still three unaccounted for mobile GPU code names and Pitcairn and Cape Verde should only match up with two of them. Thames ended up being a rebrand/rework of HD6700M but it remains to be seen what Wimbledon will be based off of. Wimbledon isn't due out until Q2 '12....which I don't know if it's just a coincidence happens to be when Tahiti LE is due out. ;)


    It's been confirmed by multiple sites that HD7700 and HD7800 will also be GCN based, which coincides with the leaked info taken from the drivers some while back that Cape Verde, Pitcairn, and Tahiti all shared the same architecture. The only VLIW4 based GPU will be the IGP on Trinity APU.
     
  12. Devenox

    Devenox Notebook Evangelist

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    7700/7800/7900 will all be GCN...
    The 6990M doesn't have VLIW4 either, still the old VLIW5
     
  13. midzi

    midzi Notebook Guru

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    True.

    Radeon HD 7770 benchmarks and test leaked

    896 sp, clocked 1 GHz +, 2 GB GDDR5, 128-bit

     
  14. Kevin

    Kevin Egregious

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    Interesting tidbits. My stock 6970M scores a 2934 Graphics Score in 3DM '11.

    It's impressive that a 128-bit GPU can top that so effortlessly. I can't wait for mobile GCN to become available; I just pray that they are compatible with my P170HM.