AMD: Southern Islands (7*** series) Speculation/ Rumour Thread

Discussion in 'Architecture and Products' started by UniversalTruth, Dec 17, 2010.

  1. ECH

    ECH
    Regular

    Joined:
    May 24, 2007
    Messages:
    682
    Likes Received:
    7
    When will we start seeing more reviews showing time to render though? Couldn't they just use frapscalc and cap the game at 30 fps (to see what happens when the frame rates are to low), 60 FPS and 90 FPS (even if you have to reduce the resolution to get it). Just to see what the results would show. It wouldn't be a test to see which CF/SLI setup is the fastest. It would be to only show how long it took to render.
     
  2. Man from Atlantis

    Regular

    Joined:
    Jul 31, 2010
    Messages:
    753
    Likes Received:
    79
    7850 & 768SPs

    [​IMG]

    http://www.techpowerup.com/165334/Production-Radeon-HD-7850-Packs-768-Stream-Processors.html
     
  3. Dave Baumann

    Dave Baumann Gamerscore Wh...
    Moderator Legend

    Joined:
    Jan 29, 2002
    Messages:
    14,081
    Likes Received:
    651
    Location:
    O Canada!
    The marking is "ENG" I.e. engineering sample. This should not have been sent for review.
     
  4. lanek

    Veteran

    Joined:
    Mar 7, 2012
    Messages:
    2,469
    Likes Received:
    315
    Location:
    Switzerland
    Damn i have not see it .... I was mostly absorbed by gpu-z.

    Anyway, who is AFOX, never heard about them...
     
  5. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,515
    Likes Received:
    934
    HardWare.fr has a review of the GTX 690 here and, interestingly, the HD 7970 is now faster than the GTX 680.

    Damien says that's because:
    1. He's now using a retail GTX 680 instead of a press sample,
    2. AMD has finally fixed their MSAA problem in Batman Arkham City,
    3. NVIDIA has a problem with Total War Shogun 2,
    4. Because it's a review for a dual-GPU card, he's used very high settings, with which the GTX 680 has trouble (memory bandwidth & capacity constraints).

    So going by HFR's results, the GTX 680 used to be faster and cheaper, now the HD 7970 is faster and cheaper. Gotta love competition. :D
     
  6. Silent_Buddha

    Legend

    Joined:
    Mar 13, 2007
    Messages:
    17,044
    Likes Received:
    6,339
    Glad to see he's using a retail card instead of an Nvidia provided card. Still going to be a matter of luck whether he gets a high clocking representation or a lower clocking representation of the card, however.

    Basically makes most reviews with GTX 6xx relatively worthless, IMO.

    Regards,
    SB
     
  7. gkar1

    Regular

    Joined:
    Jul 20, 2002
    Messages:
    614
    Likes Received:
    7
    Glad I picked up another pair of Sapphire OC 7970s for $449 after rebate + 3 free game coupon (x2). I can sell each of those for $20 at least sweetening the deal.
     
  8. lanek

    Veteran

    Joined:
    Mar 7, 2012
    Messages:
    2,469
    Likes Received:
    315
    Location:
    Switzerland
    In 10 years i have never get so much headache reading the " different reviews" for compare them... ( i like read different ones, like that i get a better figure ), But theres so much difference from one to another.
    The result on Hardware.fr are really different of what you can find on Hardwarecanuck ( for the example, and it was the first name who was come to my mind. ).

    I was going to post this one in xtremesystem, and finally decided to not... i will be call for trouble it seems. lets wait someone else do it.
     
    #3488 lanek, May 3, 2012
    Last edited by a moderator: May 3, 2012
  9. trinibwoy

    trinibwoy Meh
    Legend

    Joined:
    Mar 17, 2004
    Messages:
    10,582
    Likes Received:
    625
    Location:
    New York
    Given 690 vs 7970CF performance and power consumption do you guys think AMD will still launch a dual-Tahiti part at ~$750?
     
  10. Sinistar

    Sinistar I LIVE
    Regular Subscriber

    Joined:
    Aug 11, 2004
    Messages:
    660
    Likes Received:
    74
    Location:
    Indiana
    Maybe I missed something, it is a long thread, where did the $750 come from?
     
  11. trinibwoy

    trinibwoy Meh
    Legend

    Joined:
    Mar 17, 2004
    Messages:
    10,582
    Likes Received:
    625
    Location:
    New York
    Random number between 7970 and 690 pricing.
     
  12. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,515
    Likes Received:
    934
    I think they'll just go for twice the price of the 7970, i.e. $899.99, maybe even $949.99 if it really has "good" power-efficiency. They will probably clock it just high enough to beat the 690—otherwise, what would be the point?—and call it a day.
     
  13. mczak

    Veteran

    Joined:
    Oct 24, 2002
    Messages:
    3,018
    Likes Received:
    114
    Beating the 690 would require at least same clocks as HD7970 (of course depending on the actual games used in benchmarking but that's about the lowest I could see it happen as an average).
    Given that 2x7970 would have somewhat too high power draw but the 7970 clearly has some headroom left for lower voltage that seems doable but probably not much more.
     
  14. CarstenS

    Veteran Subscriber

    Joined:
    May 31, 2002
    Messages:
    4,936
    Likes Received:
    2,269
    Location:
    Germany
    I'd tend to agree only if the lower clocks were true for the majority of cards sold in retail.
    FWIW - reviewers get send selected samples every time. Our 680 hits 1124 until 70°C where it drops to 1093. Our 7970 otoh is way more silent than any retail card with reference cooler we've had in the lab. :)
     
  15. UniversalTruth

    Veteran

    Joined:
    Sep 5, 2010
    Messages:
    1,747
    Likes Received:
    22
    That's exactly the price range where both 6990 and 590 were sold at. Nothing random.

    And also, fixing the awful micro-stuttering crossfire is characterised with, and the applications' support out of the gate, not fixes every now and then with new CAPs, etc
     
    #3495 UniversalTruth, May 4, 2012
    Last edited by a moderator: May 4, 2012
  16. no-X

    Veteran

    Joined:
    May 28, 2005
    Messages:
    2,336
    Likes Received:
    297
    check reviews of GTX 690, micro-stutering is still present; it isn't an AMD's speciality
     
  17. Mianca

    Regular

    Joined:
    Aug 7, 2010
    Messages:
    332
    Likes Received:
    10
    Given AMD's upcoming HSA plans and the fact that the Tahiti die - even after taking all the GPGPU stuff into account - still seems somewhat big, I actually hope for some kind of chip-to-chip interconnect and/or unified memory surprise in HD7990.

    A dual-GPU card that actually works like a single GPU-card, reaching nearly perfect scaling across all games (dropping the need of game specific crossfire profiles for good), featuring 6GB of shared address space (not 2x3GB) and solving all those bothersome dual-GPU micro stuttering alternate frame rendering problems and inconsistencies - now that would be card actually worth $1000. :smile:
     
  18. AnarchX

    Veteran

    Joined:
    Apr 19, 2007
    Messages:
    1,559
    Likes Received:
    34
  19. w0mbat

    Newcomer

    Joined:
    Nov 18, 2006
    Messages:
    234
    Likes Received:
    5
    Same here: http://ht4u.net/reviews/2012/nvidia_geforce_gtx_680_kepler_sli_evga_zotac_test/index56.php

    Seems like the HD7970 is a tad faster than the GTX680 when not using press samples. How's that one might ask? Did they give out the cards with the highest turbo clk? Seems kinda shady ;)
     
  20. lanek

    Veteran

    Joined:
    Mar 7, 2012
    Messages:
    2,469
    Likes Received:
    315
    Location:
    Switzerland
    this make zero difference in 2 games listed ( Skyrim, Dirt3 ), but in some case it goes to 10fps ( 64 > 54fps ). ( so the memory speed look even more important of the pure 3gb 384bits and high bandwith ) hard to say if it is only the memory speed, or in the case of Sykrim and BF3 ( high memory usage ), the 3Gb available negate this too.

    When you bench with the 7970 ( CFX or single ), you clearly see if you only increase the clock speed, passed beyond a certain point, the scaling decrease.. you need up the memory according...
    I believe 1520mhz is good till 1200-1250mhz, passed this point and specially over 1300mhz you want to increase to 1600-1700mhz the memory. Its really a parrallel scaling.

    I can be wrong i just base myself on the constation made when overclocking them..

    The thing is when AMD have release the 7970, they have choose really conservative core and memory speed.. they could have set it at 1005mhz and 6000mhz without worrry.. Now they had to make a choice, and the different Asic, TDP, production etc have push them in this direction. Without saying, i think they have really think the lineup, from the lower 7770 to 7970 from start... and so decided the 1ghz will be for the 7870 ..


     
    #3500 lanek, May 5, 2012
    Last edited by a moderator: May 5, 2012
Loading...

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...