1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

AMD Radeon HD 7970 3072 MB

Discussion in 'Reviews' started by W1zzard, Dec 21, 2011.

  1. Trackr New Member

    Joined:
    Mar 18, 2011
    Messages:
    265 (0.20/day)
    Thanks Received:
    15
    Am I the only one who's disappointed here?

    It's 8-15% more powerful than the GTX 580.

    Seriously?

    Only 2000 ALUs.. on 28nm, when they got 1536 on 40nm.

    What gives?
     
  2. the54thvoid

    the54thvoid

    Joined:
    Dec 14, 2009
    Messages:
    3,372 (1.90/day)
    Thanks Received:
    1,603
    Location:
    Glasgow - home of formal profanity
    Nice summary from Anand.

    http://www.anandtech.com/show/5261/amd-radeon-hd-7970-review/25
    This is regards to its gaming prowess. Anand is very optimistic about GCN for compute and thinks with proper coding it will be a barnstormer.
     
  3. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    So a 30% increase from HD6970, like I said it would happen based on specs.

    I told you so guys. Now where's the people that called me names for pointing out the obvious?
     
  4. HellasVagabond New Member

    Joined:
    Jan 19, 2007
    Messages:
    3,404 (1.20/day)
    Thanks Received:
    162
    Location:
    Athens , GREECE
    Well that's why i asked. A few months back AMD admitted to having used lower IQ in the default settings than they used to in the past so i was wondering if they reverted that to the original state or they left it as is with the 7970 series.
     
  5. Dj-ElectriC

    Dj-ElectriC

    Joined:
    Aug 13, 2010
    Messages:
    2,219 (1.45/day)
    Thanks Received:
    845
    1200Mhz core clock with air cooling isnt a dream?
    look on the OC of HH

    [​IMG]
    (No-one's lookin) *fap* *fap* *fap* *fap* *fap* *fap* *fap*
     
  6. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,683 (6.86/day)
    Thanks Received:
    2,984
    Location:
    some AF base
    Mature AMD drivers normally boost a few more percents across the board. 50% I don't think has ever happened in a single generation jump most two generation jumps don't offer that.
     
    WarEagleAU says thanks.
  7. arnoo1

    Joined:
    Oct 15, 2009
    Messages:
    746 (0.41/day)
    Thanks Received:
    124
    Location:
    Netherlands
    Now crossfire that damn thing and see some real numbers xd
     
  8. Kaotik New Member

    Joined:
    Dec 22, 2011
    Messages:
    24 (0.02/day)
    Thanks Received:
    0
    Any chance of double checking the numbers?

    I can see how 590 would jump over 6990 with different games and drivers, same obviously with 570vs6970, but 5850 going over 6870, both are even VLIW5 chips, simply shouldn't happen.
    It seems that whole HD6-lineup performance is lower than it should be.
     
  9. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    What is this selective memory or what? Most generation jumps have been well over 50% increase and often times close to 100% increase, especially when a new process is used.
     
    w3b and qubit say thanks.
  10. W1zzard

    W1zzard Administrator Staff Member

    Joined:
    May 14, 2004
    Messages:
    14,962 (3.92/day)
    Thanks Received:
    11,768
    hd 5850 is high-end, hd 6870 is mid-range. remember, amd boosted their model numbers for hd 6000 series.
     
    w3b says thanks.
  11. Trackr New Member

    Joined:
    Mar 18, 2011
    Messages:
    265 (0.20/day)
    Thanks Received:
    15
    Wow, Qubit agrees with this?

    You're suggesting the HD 4870 had the performance of an HD 5870 when the latter was released?

    How unfathomably absurd.
     
  12. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    Whaaaaaaat?! You need to get some reading skills ASAP.

    I said that most generation jumps have a 50% to 100% INCREASE in performance. The HD5870 was ~80% faster than the HD4870 so it falls in that range.
     
    w3b, NAVI_Z, bucketface and 2 others say thanks.
  13. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,683 (6.86/day)
    Thanks Received:
    2,984
    Location:
    some AF base
    Review your facts again


    6870->6970
    18%
    5870->6870 -7%
    4890->5870 26%
    3870->4870 46%
    2900XT->3870 -2%
    Overall performance summaries

    As I don't see anything that exceeded 50% let alone came close to 100%.
     
    H82LUZ73 and WarEagleAU say thanks.
  14. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    Most of those are not generation jumps.

    HD3800 was not a new gen. HD6870 is not a new gen and it's not even the same market segment as the HD5870. HD6970 is the same gen and forms part of the same lineup as the HD6870. Pff I'm sure you can do better.

    Plus you need some math skills. For example is the HD3870 is 64% as fast as the HD4870 that means that 100/64*100= 156%. So the HD4870 was 56% faster. On the exact same 55nm process BTW.

    EDIT: With the HD4890 vs HD5870, you are mostly correct, except for the failed math, that is. I totally forgot about the HD4890.
     
  15. qubit

    qubit Overclocked quantum bit

    Joined:
    Dec 6, 2007
    Messages:
    9,830 (3.91/day)
    Thanks Received:
    3,485
    Location:
    Quantum well (UK)
    "Boosted", I like it. :) One could say "did an nvidia", too. ;)
     
    w3b says thanks.
  16. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,683 (6.86/day)
    Thanks Received:
    2,984
    Location:
    some AF base
    The 5870->6970 still isn't a 50% bud. The 5870->6870 still represents a core change and a lateral performance change between generations. The 6970 later took the top spot without pulling off 100% performance increase.
    I just went off percent difference.

    It's not really failed math its just not the way you were phrasing it. If the 5870 is 100% and the 4890 is 74% the 5870 still has 26% higher performance.
     
    WarEagleAU says thanks.
  17. badtaylorx

    badtaylorx

    Joined:
    Aug 19, 2011
    Messages:
    481 (0.41/day)
    Thanks Received:
    152
    point being this card is going to be a great one....considering amd blew their wad 3 weeks early and we still get performance this good means nvidia is in for a world of hurt untill 6xx

    :nutkick:
     
  18. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    HD5000 to HD6000 is NOT a new gen, unless you really fall for AMD's (and Nvidia's) tactics. It was also made on the same 40nm process.

    With a new process, and all the additional transistors that you can use, a lot more is expected.

    No, that's failed math, plain and simple. Let's go with round numbers. 50% and 100%. According to you 100 is 50% more than 50, and that's false. 100 is 2x, or double of 50. 100 is also a 100% increase or 200% as much as 50.

    50 + 50% == 50 + 1/2 * 50 == 75 != 100
     
  19. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,683 (6.86/day)
    Thanks Received:
    2,984
    Location:
    some AF base
    Was a 65nm althon x2 the same generation as a 65nm phenom?


    You could call it lazy after work math not to mention the magarita and couple of beers ;). My point that no generation was a 100% or 2x increase still stands. Also I was using the card at 100% as the starting point meaning card A at 100% and card B at 75% card A has a 25% performance lead while also being 50% faster.
     
    Last edited: Dec 22, 2011
    Ev1LrYu, heky and WarEagleAU say thanks.
  20. Aleksander

    Joined:
    Dec 2, 2009
    Messages:
    3,254 (1.82/day)
    Thanks Received:
    304
    Only the price ruins this card. You get power for noise so it is normal i think.
    I think it was much better than gtx 580, but still it needs to evolve as a 28nm gpu
    so would not get dissapointed for being the best single gpu
     
  21. Dj-ElectriC

    Dj-ElectriC

    Joined:
    Aug 13, 2010
    Messages:
    2,219 (1.45/day)
    Thanks Received:
    845
    People are used to being spoiled with AMD products, always expecting X5 performance for 150$ like its some kinda of freaking magic they can perform
     
  22. Benetanegia

    Benetanegia New Member

    Joined:
    Sep 11, 2009
    Messages:
    2,683 (1.44/day)
    Thanks Received:
    694
    Location:
    Reaching your left retina.
    Different situation, but mainly yes. many Athlon X2's are the same generation as Phenom. Athlon II is same generation as Phenom II, etc.



    If you use the faster card as the starting point, you can only say that card B is x% slower than card A. No matter how you word it, it's not correct to say it's x% faster unless the slower card was used as the baseline.

    And not trying to bring you down completely, but 100% would be 33% faster than 75%, not 50%. ;) I suggest a cup of coffee and/or a little bit of sleep. :toast:
     
  23. Kaotik New Member

    Joined:
    Dec 22, 2011
    Messages:
    24 (0.02/day)
    Thanks Received:
    0
    Yes I'm fully aware of this, however I'm also aware that 6870 has been always faster than 5850 (while 6850 has been slower)

    Previously the difference has been something around 6-7% in favor of 6870 on average at 1920x1200, and now suddenly 5850 is supposed to be nearly 4% faster at same res?

    That's just not right, if 6800's were VLIW4's it could possibly be explained by some driver optimizations just working for VLIW5's and not VLIW4's, but since they're both VLIW5's it's just not right.
     
  24. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,683 (6.86/day)
    Thanks Received:
    2,984
    Location:
    some AF base
    On that note an Athlon X2 is a K8 and a Phenom I would be a K10. Those are two completely different cores. Same thing as saying a Pentium 4 65nm is the same as a Core 2 Duo 65nm chip. Fab means shit as far as generations go if the core is new its a different generation. Not to mention there are plenty of cards of the same generation that received die shrinks 9800GTX vs GTX+ for example same exact core with a die shrink.

    I was comparing % difference which is Card A-Card B and my post reflects that.
    Fuck it I am having another beer.
     
    heky, WarEagleAU and magibeg say thanks.
  25. Andrei23 New Member

    Joined:
    Dec 30, 2010
    Messages:
    243 (0.17/day)
    Thanks Received:
    25
    Came here to read the review first, great job w1zz
     
    W1zzard says thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page