AMD Radeon HD 7900 Reviews

Discussion in '3D Hardware, Software & Output Devices' started by Arty, Dec 22, 2011.

  1. Tridam

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    It actually works on 5000 and 6000 series.
     
  2. Jawed

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    Performance comparison time!
     
  3. Arty

    Arty KEPLER
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    http://www.anandtech.com/show/5458/the-radeon-hd-7970-reprise-pcie-bandwidth-overclocking-and-msaa/3

    Updated first post, review count has now crossed the 100 mark. :)
     
  4. fellix

    fellix Hey, You!
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    Doesn't run properly on my GTX570. The above quote is from the program's log.

    The demo is running, with audio, but the render output is mostly blacked out with very few objects visible. The frame-rate is in the upper 20's.

    Few bugged screens:

    http://img716.imageshack.us/img716/2007/leod3d11201201272119301.png
    http://img543.imageshack.us/img543/5615/leod3d11201201272119271.png
    http://img710.imageshack.us/img710/1343/leod3d11201201272119092.png
    http://img859.imageshack.us/img859/7800/leod3d11201201272119023.png
    http://img811.imageshack.us/img811/6419/leod3d11201201272118594.png
    http://img11.imageshack.us/img11/4118/leod3d11201201272118511.png
    http://img141.imageshack.us/img141/4603/leod3d11201201272118469.png
     
  5. Silent_Buddha

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    So, looks like IHV's are trying to get as much as they can while demand remains high.

    If it was either AMD or the retailer trying to get higher margins then it would be extremely unlikely to see any cards at the launch MSRP. If supply was too low, we'd see less availability. If supply AND demand were low, we wouldn't see most of the reference cards above MSRP. If supply were low and demand were high we'd see both lower availability and much higher price gouging.

    The funny one is the Amazon 3rd party sales. Where 3rd parties are trying to get a huge mark up. I wouldn't be surprised if some of those were regular users trying to resell the card they just bought for a profit.

    Regards,
    SB
     
  6. AlphaWolf

    AlphaWolf Specious Misanthrope
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    Amazon 3rd party pricing often mirrors ebay. They are often basement or single location sellers just trying to make a few $ on the side. It will be interesting to see what the 7950 availability (rumored to be very high, overclockers claim to have 500 units) does to the price of the 7970.
     
  7. fellix

    fellix Hey, You!
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  8. Kaotik

    Kaotik Drunk Member
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    Some temperature results comparing 2 cards with different default voltages at same voltage & clocks.
    Fanspeeds set to as close to each other as possible (60% fanspeed on Sapphire has different RPM compared to 60% fanspeed on Club3D, both are reference cooler cards)

    [​IMG]

    Also, overclockability of the said cards

    [​IMG]

    And some Dirt 2 benches at different MHz's, sadly I'm not sure how high clocks his 980X (watercooled) has.

    [​IMG]

    Thanks for graphs & tests for Damsteri @ MuroBBS
     
  9. no-X

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    Interesting test. But the ASIC "quality" isn't the only factor of limitation. Wrong thermal paste could ruin OC results more than bad GPU sample:

    RPM
    [​IMG]

    power consumption
    [​IMG]

    translation:
    - AMD reference HD 7970 + original paste
    - AMD reference HD 7970 + Noctua NT-H1 paste
    - Sapphire HD 7970 + white paste
    - Sapphire HD 7970 + Noctua NT-H1
    (both models have reference cooler)

    http://extrahardware.cnews.cz/sapphire-hd-7970-hlucnost-spotreba-pretaktovani-vykon?page=0,2
     
  10. Alexko

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    Is the "white paste" what comes from the stock Sapphire model? That would be an unfortunate oversight by Sapphire.
     
  11. OpenGL guy

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    Sample size of 1?
     
  12. Alexko

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    Point taken. Still, I think this warrants further investigation, at the very least.
     
  13. no-X

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    No, Sapphire 7970 with the white paste (probably cheapest silicon-based thermal grease) is more or less an example of a card, which was already tested by several sites and lent for one more review. It was disassembled many times, so the thermal compound isn't the original one. These "travelling" samples can result in pretty biased reviews.

    It's also a hint for users, who are going to repalce the stock cooler, to use the best available thermal grease...
     
  14. Alexko

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    OK, thanks. Nothing to worry about, then.
     
  15. Andrew Lauritzen

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    #255 Andrew Lauritzen, Jan 30, 2012
    Last edited by a moderator: Jan 30, 2012
  16. trinibwoy

    trinibwoy Meh
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    Is Jan 31 for the 7950 confirmed? Reviews tonight?
     
  17. Alexko

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  18. AlphaWolf

    AlphaWolf Specious Misanthrope
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    Newegg already has 10 models in stock, so I expect reviews soonish. (The Asus 3slot card is clocked at 900Mhz)
     
  19. thatdude90210

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    Bloody hell, that thing is a monster.

    Priced a little high, $459 to 499 so far. I was hoping to see the single fan ones at $399 and the o/c versions at $450. I guess I'll wait a little longer for the competition to show up, and drive prices down a little. They all look to dump hot air back into the case too, not liking that trend.
     
  20. AlphaWolf

    AlphaWolf Specious Misanthrope
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    I believe 1.5GB cards should come in at $399, assuming they intend to make them.

    As for the clocking, I wouldn't be surprised if they are similar to 7970 in terms of OC, depending how stingy the AiB's are with the PCB.
     
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