So, do we know anything about RV670 yet?

Discussion in 'Architecture and Products' started by nicolasb, Jul 11, 2007.

  1. ECH

    ECH
    Regular

    Joined:
    May 24, 2007
    Messages:
    682
    Likes Received:
    7
    The real question for most folk will be how well the 3870 beats the 2900. Even if it's a bit slower to the GT it would slide by as long as it's faster then the 2900. Specially in AA department without the needed to for deferred rendering.
     
    #801 ECH, Nov 1, 2007
    Last edited by a moderator: Nov 1, 2007
  2. trinibwoy

    trinibwoy Meh
    Legend

    Joined:
    Mar 17, 2004
    Messages:
    10,561
    Likes Received:
    601
    Location:
    New York
    Cool, is it possible to just install NVPerfKit and see those numbers for the commercial build of any third party application/game or do you need a special version of the application as well?
     
  3. ECH

    ECH
    Regular

    Joined:
    May 24, 2007
    Messages:
    682
    Likes Received:
    7
    I also have to ask..why is there any delay in the 3870 benchmarks? What is there to be discrete about at this point? Nvidia has released the GT and it's available at most stores (and appears to be doing well). The GTS 128 SP will be release within weeks and benchmarks are forth coming. What I don't seem to comprehend is why ATI is still withholding 3870 benchmark results? Someone help me understand this enigma? If nvidia is the only current competitor what other factor am I missing here? Nvidia is moving forward with 2 very nice cards yet we don't have a clue if the 3870 truly exist other then the fact there is information about DX10.1!
     
  4. AlphaWolf

    AlphaWolf Specious Misanthrope
    Legend

    Joined:
    May 28, 2003
    Messages:
    8,957
    Likes Received:
    967
    Location:
    Treading Water
    How about because you plan a launch and then you follow through... you don't undercut your event by leaking numbers to sate the appetites of a few rabid forum goers who act like impatient children.
     
  5. ECH

    ECH
    Regular

    Joined:
    May 24, 2007
    Messages:
    682
    Likes Received:
    7
    Name calling isn't really an answer but an incite to argue. But on the same note, being able to be flexible regarding job duties or being able to handle situations as they occur is something that should be part of most performance reviews. So, having said that maybe you have a better understanding of my question? :grin:
     
    #805 ECH, Nov 1, 2007
    Last edited by a moderator: Nov 1, 2007
  6. Arty

    Arty KEPLER
    Veteran

    Joined:
    Jun 16, 2005
    Messages:
    1,906
    Likes Received:
    55
    Reviewing media need time with the card, so far no one has claimed they have even recieved it yet.
     
  7. ECH

    ECH
    Regular

    Joined:
    May 24, 2007
    Messages:
    682
    Likes Received:
    7
    Yeah, that's what I am hearing...so what's the hold up then?
     
  8. Shtal

    Veteran

    Joined:
    Jun 3, 2005
    Messages:
    1,344
    Likes Received:
    3
    Nvidia’s is more efficient way to get maximum performance out of 128 stream processors; ATI on their other hand is more complex in the way for squeezing maximum performance out of 320 streams. But the concern is in my opinion it has to do with texture units; the R600 has 16 which are running approx ~740MHz where the G80 has 64 running at 575MHz, simply ATI does not have enough texture units; this is where I see the main problem for the HDRadeon2900XT. In my opinion, the 320 streaming processors using a VLIW architecture is too complex for a graphics card. They eat up too many transistors, which is why it doesn’t have enough texture units or AA resolve units. To compensate for this, they boosted its clock speed, which makes it run hotter and use more power, and thus necessitate a louder fan. I like Nvidia’s idea of having the shaders running at a higher clock than the rest of the chip, because then you get extra performance without eating into your transistor count and die size on a chip. Using lots of transistors is very bad, because it increases size and complexity of the chip. The wafers on which chips are made are fixed in size and if you have a chip with lots of transistors, it takes up lots of space, and you can’t make so many of them from one wafer. Having big complex chips can really hurt how much it cost to make. But RV670 built on 55nm tech changes the picture dramatically; what I mean is, it will not run as Hot and it will be cheaper to produce as well shrink from 512bit to 256bit memory, but as far tweaking the core itself will be interesting if it ever happens.
     
  9. OpenGL guy

    Veteran

    Joined:
    Feb 6, 2002
    Messages:
    2,357
    Likes Received:
    28
    There are benefits to each. G80 may be easier to program, but it also has lower peak ALU power. Hence this is debatable.
    How much area do you suppose to takes to run your shaders at 1150 mhz vs. 575mhz? Doubling the clocks isn't free.
    And as I said earlier, G80 is larger than R600. Hence, G80 is more "bad".

    P.S. Please use paragraphs. Replying to a wall of text is not enjoyable.
     
  10. Shtal

    Veteran

    Joined:
    Jun 3, 2005
    Messages:
    1,344
    Likes Received:
    3
    Not worth to debate. :) Lets get back to RV670!


    Hint: NV30 had to much transistors on 130nm tech!

    Edit: Sorry :(
     
    #810 Shtal, Nov 1, 2007
    Last edited by a moderator: Nov 1, 2007
  11. Dave Baumann

    Dave Baumann Gamerscore Wh...
    Moderator Legend

    Joined:
    Jan 29, 2002
    Messages:
    14,081
    Likes Received:
    651
    Location:
    O Canada!
    This, of course, also isn't a developer issue as we do the groundwork with the shader compiler.
     
  12. Shtal

    Veteran

    Joined:
    Jun 3, 2005
    Messages:
    1,344
    Likes Received:
    3
    So far I see very slow progress in that direction.
     
  13. Dave Baumann

    Dave Baumann Gamerscore Wh...
    Moderator Legend

    Joined:
    Jan 29, 2002
    Messages:
    14,081
    Likes Received:
    651
    Location:
    O Canada!
    And what tests have you run?
     
  14. Arty

    Arty KEPLER
    Veteran

    Joined:
    Jun 16, 2005
    Messages:
    1,906
    Likes Received:
    55
    There is no holdup.:roll: Launch has been scheduled and accordingly samples will be sent out.
     
  15. Jawed

    Legend

    Joined:
    Oct 2, 2004
    Messages:
    10,873
    Likes Received:
    767
    Location:
    London
    Funny how people forget that RV670 has supposedly been brought forward a couple of months, and then another week or two...

    Mmm, that ixbt data looks tasty.

    Jawed
     
  16. Karma Police

    Regular

    Joined:
    Sep 2, 2004
    Messages:
    433
    Likes Received:
    6
    Location:
    192.168.2.1
    Penstarsys is saying the RV670 has about 100 million more transistors than the R600. This is rumor (or at least without confirmation), but why would the RV670 have more than the R600 if it was "just" a die shrink?

    Penstarsis: State of 3D: Q4 2007
     
  17. Sound_Card

    Regular

    Joined:
    Nov 24, 2006
    Messages:
    936
    Likes Received:
    4
    Location:
    San Antonio, TX
    That's a out dated artical. You can tell because he still uses G92, and RV670 as names.
     
  18. Karma Police

    Regular

    Joined:
    Sep 2, 2004
    Messages:
    433
    Likes Received:
    6
    Location:
    192.168.2.1
    Well, it's dated October 29th, 2007. I don't think 2-3 days is out dated.
     
  19. Sound_Card

    Regular

    Joined:
    Nov 24, 2006
    Messages:
    936
    Likes Received:
    4
    Location:
    San Antonio, TX
    ahh your right. He never used HD 3870 though... Kind of weird.

    I kind of agree with the artical though.
     
  20. Karma Police

    Regular

    Joined:
    Sep 2, 2004
    Messages:
    433
    Likes Received:
    6
    Location:
    192.168.2.1
    So do I, but the possibility of 100 Million more transistors means some functional changes to the R600/RV670 core.

    Nov 19 can't come soon enough.
     
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...