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    AMD releases HD 7000M - mobile 7700M/7800M/7900M series

    Discussion in 'Gaming (Software and Graphics Cards)' started by yknyong1, Mar 28, 2012.

  1. pastapvz

    pastapvz Notebook Geek

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    Micah the 7970M costed me more than GTX 675 around 100€, this is not a rumour it's a fact because i've allready paid for my machine on monday April 9th.

    Cheers bro
     
  2. yknyong1

    yknyong1 Radiance with Radeon

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    If AMD is charging more, then performance will be better in some way.
     
  3. SkittlesXD

    SkittlesXD Notebook Consultant

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    When you do get that laptop you may want to check that you weren't sold an engineering sample 7970M.
     
  4. moviemarketing

    moviemarketing Milk Drinker

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    That would seem to be the case:

    7970m
    Pipelines 1536 - unified
    Core Speed * 800 MHz
    Shader Speed * 800 MHz
    Memory Speed * 1200 MHz
    Memory Bus Width 256 Bit
    Memory Type GDDR5
    Memory Bandwidth 153.6GB/s
    Power Consumption 65-70 Watt
    technology 28 nm


    675m
    Pipelines 384 - unified
    Core Speed * 620 MHz
    Shader Speed * 1240 MHz
    Memory Speed * 1500 MHz
    Memory Bus Width 256 Bit
    Memory Type GDDR5
    Memory Bandwidth 96.0GB/s
    Power Consumption 100 Watt
    technology 40 nm
     
  5. Meaker@Sager

    Meaker@Sager Company Representative

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    The concept does not work for a GPU.
     
  6. awakeN

    awakeN Notebook Deity

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    EDIT: nvm lololo
     
  7. awakeN

    awakeN Notebook Deity

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    Holy batman 1536 piplelines
     
  8. micahmatthew

    micahmatthew Notebook Deity

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    Yeah if this is true it could be a solid 15-20% more powerful than the 675m, and generate 15-20% less heat [due to 28nm], while consuming 30% less power? 70 w vs. 100w. Man this card could be a complete beast. Also your price is inflated compared to USA prices because of extra 20% VAT and all that. Here it will probably be like $100 more than GTX 675m, so maybe from GTX 670m to AMD 7970m it will be $200, possibly $250. I will save up for this though as this is the most important part of the computer. Totally beast. Since it only consumes 70w could it be used on a P151EM?
     
  9. long2905

    long2905 Notebook Virtuoso

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    Maybe we can overvolt it and get even more performance 8-} (i hope to god the rumor is true though)
     
  10. pastapvz

    pastapvz Notebook Geek

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    It's used on P150EM

    P150EM DIY II | WSI Bytes & Gadgets - Portáteis à sua medida - Loja Online - Asus, Clevo, Sony, Toshiba, Dell, HP, Samsung, Compal, Apple
     
  11. micahmatthew

    micahmatthew Notebook Deity

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    Yeah I see that; but could it be used on a 120W power supply from the P151EM? Since its 70W isn't it possible? I'm not sure how it all works ha.

    I want the P150EM anyways though for the rubberized feel and new keyboard + stronger power supply. Hopefully this card doesn't break the bank and comes out in a few weeks!
     
  12. yknyong1

    yknyong1 Radiance with Radeon

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    Power supply is not a big issue as you can replace it easily. It is the support that is key.
     
  13. micahmatthew

    micahmatthew Notebook Deity

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    I see I see. Well either way I'll probably get the P150em so that later I can upgrade to 7990m if I have to ;) Haha. 7970 and IVy should be plenty for my needs for the next 3-4 years though. Throw in a hybrid drive and I'm good. Or even a 500GB HD and 120GB SSD. Either way.... Going to hurt my pockets for a few weeks but its worth it for a few years of fun and work and school on it ;P
     
  14. Phinagle

    Phinagle Notebook Prophet

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    Like previous generations HD7700M and HD7800M will have to fit in a 30W-55W TDP range to meet the requirements of the notebooks they're designed for.

    How is shaving ~15W off a HD6970M level GPU with new arch and a die shrink more unfathomable to you than jacking up the TDP of the mainstream GPU parts by as much as 35W? :confused:


    It's a no-brainer that Chelsea will be the HD7700M cards, and it's equally obvious that the only 28nm GCN GPU available to use for Chelsea is Cape Verde. With Chelsea set as Cape Verde, if you guess at Wimbledon being Pitcairn what GPU choices are you left with for Heathrow?

    The two known versions of the GPUs you're probably thinking of don't work with how AMD's made cards in the past. :nah:
     
  15. Botsu

    Botsu Notebook Evangelist

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    I was personally thinking

    7750/7770M : Cape Verde Pro (512 cores)
    7850/7870M : Cape Verde XT (640 cores). Possibly a rebrand of 6950/6970M, like they rebranded the 5850M to 6870M.
    7950/7970/7990M : Pitcairn Pro & XT (1024 & 1280 cores)

    It doesn't make sense to go with Tahiti chips. Trimming/binning Pitcairn XT to fit in the 100W TDP would result in both cheaper and more powerful chips compared to Tahiti I think. Because Pitcairn is fundamentally a better balanced and more efficient chip.

    Furthermore remember that Tahiti is ~350mm² (Pitcairn being 215mm², Barts@6970/6990M being ~240mm² iirc). It would be unusual to say the least and not very consistent with AMD's recent strategy and track record in the mobile high-end.
     
  16. Cloudfire

    Cloudfire (Really odd person)

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    Even the reseller says 1536 shaders..

    [​IMG]
     
  17. maxheap

    maxheap caparison horus :)

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    everywhere on the web says 1536, looks like amd has a neat surprise packed for nvidia :)
     
  18. Meaker@Sager

    Meaker@Sager Company Representative

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    800mhz + 1536 shaders? Errr No. That's the same core speed as the 7950 which has a 200W TDP.

    Why cripple the core down to below 7870 core levels of efficiency, you already lost the memory bandwidth advantage.
     
  19. Cloudfire

    Cloudfire (Really odd person)

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    Yeah lol. The resellers could atleast stick to real facts and not post rumors. That could hit them back in the face pretty hard.
    I stick to my previous calculations, around 22% improvement over 6990M and 60-80W. I`m hoping its correct because that is a pretty sweet performance. :)

    [​IMG]
     
  20. Meaker@Sager

    Meaker@Sager Company Representative

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    If we want the sweetest performance then an 750mhz 1280 shader part with 1000mhz 256bit mem would be lovely at 100W and a 675mhz 1024 shader part with 1000mhz 256bit mem at 75W would be nice.
     
  21. maxheap

    maxheap caparison horus :)

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    exactly! but I still don't get it, everybody believing this techarp straightaway, crazy..
     
  22. PaKii94

    PaKii94 Notebook Virtuoso

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    hahaha I think we all want to believe it but deep down we all know its not gonna happen :(
     
  23. yknyong1

    yknyong1 Radiance with Radeon

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    If that is true, then we should be pretty concerned on memory bandwidth.
     
  24. awakeN

    awakeN Notebook Deity

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    1536 shaders and only 65W consumption? Thats more shaders than a 580M SLI o.o
     
  25. maxheap

    maxheap caparison horus :)

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    nvidia shaders are much more powerful than amd shaders
     
  26. awakeN

    awakeN Notebook Deity

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    ok well then these numbers im looking at on notebookcheck make more sense now xD
     
  27. Meaker@Sager

    Meaker@Sager Company Representative

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    Actually it's ROPS.

    The 7870 and 7950 have the same ROP count, the 7870 gets close to the 7950 in some cases where the faster clock gives it more ROP power.

    Now take the 7950 and hack a 1/3rd of its mem bus off, well you just hacked off a 1/3rd of the ROPs.

    So you can either have 32 Rops at 700-800mhz or 24 Rops at 500-600mhz.

    I know which I wuld rather have.

    Wait a sec, you cant devide the rops by 3, so you cant de-active 128bits of the bus :/

    Ah I see, it goes into a crossbar so the ROPs might still be usable.
     
  28. rorkas

    rorkas Notebook Consultant

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  29. DEagleson

    DEagleson Gamer extraordinaire

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    Now that AMD finally got the competition its been waiting for all year they got to go into a more competitive price range.
    Doesent hurt that the bundled games this time doesent suck that much either. :D

    Dont think us mobile users will get much benefit from the bundled games though.
     
  30. ryzeki

    ryzeki Super Moderator Super Moderator

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    Well.. not exactly like that. They simply are different and perform different tasks. And since current kepler runs at 1:1 core and shaders clocks, you see how they approach into similar numbers. Like 1536 cuda cores at a fixed speed are slightly more powerful than 2048 GCN processors at the same speed. Before we would have 1600 stream processors being quite weaker than 512 cuda cores etc, besides clockspeeds.

    Then again the GCN cores now perform a wide variety of general purpose processing tasks.

    but before, with fermi having massively faster cuda core clocks and AMD's stream processors being much less efficient and effective, yeah it was much more notable how weak a single stream processor was compared to 1 cuda core.

    In the end they are very different architectures so they are not exactly comparable as a 1:1 basic between them.

    and I want more info on these 7900m cards now. I really want to upgrade.
     
  31. awakeN

    awakeN Notebook Deity

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  32. kevmanw4301

    kevmanw4301 Notebook Deity

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    That would imply that they are not having those problems, as yields are good enough to lower prices and keep stock.
     
  33. yknyong1

    yknyong1 Radiance with Radeon

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    I really hope they have no problems because NVIDIA has soured their relationship with TSMC... ;)
     
  34. maxheap

    maxheap caparison horus :)

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    definitely I was just being simple, and yeah I was comparing Fermi, with Kepler we will forget the term "shader clock", sad :(
     
  35. awakeN

    awakeN Notebook Deity

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  36. ryzeki

    ryzeki Super Moderator Super Moderator

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    Excellent, it's inline with all the predictions some of us made, and makes total sense in the specs/performance ratio.

    except... well I don't know what other sacrifices they might have made, since it essentially has 85% of the core clocks of the reference card HD7870, I would expect more performance than 4000ish in 3dmark11 considering the HD7870 has what... nearly 7k?
     
  37. rorkas

    rorkas Notebook Consultant

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    It should be around 5k, since 7870 scores >6k.
     
  38. SkittlesXD

    SkittlesXD Notebook Consultant

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    We have to call in some favors from our comrades @ desktopreview. Need someone to downclock a 7870 by 150 Mhz and run some benches for us.
     
  39. Cloudfire

    Cloudfire (Really odd person)

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    So since 7970M = 100W, there must be some lower 79xx GPU coming too right?
    7950M?
     
  40. Kevin

    Kevin Egregious

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    Uh yeah, so I'mma go ahead and say that my original predictions of a minimum 40 percent increase in performance vs current gen cards is going to end up as correct.

    Holy crap.
     
  41. ryzeki

    ryzeki Super Moderator Super Moderator

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    I'd say it should be even more haha.

    Specswise, the rumored specs of the 680m are inferior to the HD7970m... based Desktop comparisons (being a rumored GTX660 vs HD7870). If we go by not-so-accurate numbering, if we assume 1536 cuda cores are similar to 2048 stream processors, the 680m having 768 cores would be figthing a 1024 stream procesor part. This would mean the 680m being rivals with HD7950m, and a 685m fighting the HD7970m?

    Just pure speculation based on some desktop specs and rumored mobile specs.

    I would expect a 3dmark score of 5400ish, considering the 7k nature of the desktop card. Damm...

    if true I could upgrade my old Hd5870m to over 100% performance increase :D
     
  42. SkittlesXD

    SkittlesXD Notebook Consultant

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    Likely a 7950M @ 75W with more or less the same 15% down clock of a 7850. Mabye just 10% actually, since the 7970M had to shave roughly 40 watts while the 7870 only needs to cut 25 watts.
     
  43. moviemarketing

    moviemarketing Milk Drinker

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  44. Karamazovmm

    Karamazovmm Overthinking? Always!

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    just say it that you liked a lot more now, thats kind of confirmed specs

    150mhz off the 7870 will make it one hell of a card
     
  45. moviemarketing

    moviemarketing Milk Drinker

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  46. _Josh

    _Josh Notebook Consultant

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    You guys think an m15x will accept a 7970 without too much trouble? :rolleyes:
     
  47. Threshold

    Threshold Notebook Consultant

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    PRT appears to be a GCN change, so architecture-wide. In other words, yes; 7750/7770/7850/7870/7950/7970 all have it, and so will any mobile variants thereof.
     
  48. moviemarketing

    moviemarketing Milk Drinker

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    That's great news! +rep

    At the moment the only games that would seem to benefit are RAGE and the upcoming DOOM4; however, AMD seems to be gambling that this is going to become much more common.

    I imagine if the rumors that the PS4 and Xbox720 will be capable of running games at 4k resolution / 3D 1080p have any truth to them, then doesn't it seem likely that we will see more games using partially resident, high quality textures in 2014 and beyond?
     
  49. DEagleson

    DEagleson Gamer extraordinaire

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    Numbers are looking good so i might squeeze some more performance on my Clevo P170HMx. ;)

    Sent from my GT-I9100 using Tapatalk 2
     
  50. Meaker@Sager

    Meaker@Sager Company Representative

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    Oh, so I was right then...... I would say I would be surprised, but I'm not.

    15% behind the 7870.

    Thats more powerful than a 6950 desktop card. I was worried they would have to cut clocks more but they must be getting some very efficient cores.
     
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