TechSpot

AMD showcases dual-GPU Radeon HD 7990 at GDC

By Shawn Knight
Mar 27, 2013
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  1. AMD launched the Radeon HD 7790 late last week to cover the mid-range market which left many looking to see when the company was planning to tackle the high end. We now have some solid answers as AMD showcased the...

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  2. amstech

    amstech TechSpot Enthusiast Posts: 881   +231

    As cool and powerful as they are, I have never been impressed by dual GPU cards. I get why they make them with all the possible accomodations/certain space needs etc etc. I consider the fastest single GPU to be the real king. Just my take.
     
    Skidmarksdeluxe likes this.
  3. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    About time. I really wanna see this vs a Titan or a 690.
     
  4. Footlong

    Footlong TS Rookie Posts: 22

    The best part is that this card will only cost you a kidney. After all you can live (presumably well) with just one, right?! One question though, didn't AMD partners released this already with the name of 7970 X2?
     
  5. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    I don't believe so.

    GTX 690 vs Radeon HD 7970 X2
    Edit:
    On second thought it does look to be the same card.
     
  6. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    I wanna see updated benchmarks before I judge. The drivers will be more optimized for the newly released 7990.
     
  7. dividebyzero

    dividebyzero trainee n00b Posts: 4,909   +716

    The Devil 13 (and the other TUL branded cards like the VTX3D, Club3D, and PowerColor standard card) are all full fat (2048 shader core) Tahiti XT, triple slot, 3 x 8-pin PCI-E power. The reference HD 7990 is dual slot, 2 x 8pin (as per the card shown a year ago)...and apparently, 1792 shader/core/stream processors per GPU- which if still a Tahiti GPU (likely) would make it equivalent to a dual HD 7950 card (Tahiti Pro)
    [​IMG]
     
    cliffordcooley likes this.
  8. Skidmarksdeluxe

    Skidmarksdeluxe TS Evangelist Posts: 3,178   +764

    +1 although I never realized they were cool, All the reviews I've read about them they seem to run rather hot.
     
  9. lucasepiphany

    lucasepiphany TS Rookie

    Screw all this dual GPU crapp, my SLI 580s stil rule and I spent too much and enuf wit upgrading everytime they tell us Kepler this titan that
     
  10. Skidmarksdeluxe

    Skidmarksdeluxe TS Evangelist Posts: 3,178   +764

    Yeah most enthusiast's tend to overspend on their parts although they vehemently defend their purchases as an investment and a necessity.
     
  11. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    My friend has 2 heavily OCed and watercooled 580s, they perform well @ max settings on all games except Crysis 3, where he had to tone down the settings. As for the 7990 and dual slots in general, yes they are weaker than 2 of the same GPUs in SLI, but it creates less heat and takes up less slots.
     
     
  12. dividebyzero

    dividebyzero trainee n00b Posts: 4,909   +716

    What looks to be a legitimate HD 7990 up for sale on eBay.

    950 MHz core frequency (presumably with some sort of boost option), 6000 MHz effective memory
    [​IMG]

    Price looks steep considering the retail card is rumoured to launch next week ( 22nd April).
     
  13. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    Well, couldnt that also be the FirePro S10000? It is literally the same exact thing. Do the stickers on the fans say Radeon?

    [​IMG]

    Edit: The 3 Stickers on the Radeon card and then lack of FirePro branding near the fan make me think that is legit as you said Zero.
     
  14. dividebyzero

    dividebyzero trainee n00b Posts: 4,909   +716

    The shrouds are somewhat different which would be a significant differentiator - note the double row of cooling slots on the S10000. They are present on both sides of the shroud:
    [​IMG]

    Another indicator would be pricing. An S10000 is a $3200-3500 card. It's worth a great deal more as a FirePro than a BIOS modded (the S10000 is 825M core/5000M effective memory) Radeon
     
    JC713 likes this.
  15. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    Hmm. Interesting. Does the FirePro have ECC memory? Isnt that what drives up the price.
     
  16. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    What drives up the price is the reason behind owning one. It's a professional graphics card. The phrase "It takes money to make money!" definitely applies here.
     
  17. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    I know it is professional. But the thing that separates the Quadro K5000 and the GTX 680 is the 4 GB of ECC memory. $500 vs $1800.
     
  18. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    Do you honestly think it cost 1300 more to produce ECC memory?
     
  19. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    No, but that is the main factor. It is also for the drivers I guess. I really dont know lol:eek:
     
  20. dividebyzero

    dividebyzero trainee n00b Posts: 4,909   +716

    The FirePro does have 72-bit ECC memory, but the main reason the card should be more expensive is the 24/7 support. Technically, drivers make up a large part of a pro cards extra cost. This is a moot point with AMD pro cards since AMD pro drivers are basically non-existent.
    Both Nvidia and AMD pro GPUs generally undergo a more stringent binning process for voltage, since many applications rely upon passive solutions (at least as far as the card goes) and a tighter power usage envelope.
     
    JC713 and cliffordcooley like this.


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