R520 - talk, rumours, speculation; the lot!

Discussion in 'Pre-release GPU Speculation' started by digitalwanderer, Jul 23, 2005.

Thread Status:
Not open for further replies.
  1. KimB

    Legend

    Joined:
    May 28, 2002
    Messages:
    12,928
    Likes Received:
    230
    Location:
    Seattle, WA
    Well, not exactly the same since the program's going to be less GPU-limited on a faster GPU, but it still would seem plausible that if one score is correct, the other could also be.
     
  2. _xxx_

    Banned

    Joined:
    Aug 3, 2004
    Messages:
    5,008
    Likes Received:
    86
    Location:
    Stuttgart, Germany
    It is important if every node should be able to communicate to every other node anytime. In case of this über-bus-ring, the internal bandwidth would not be the limitation for something like that anymore. Just from the top of my head. And if it should be something like that in the first place, which I have no idea of.
     
  3. trinibwoy

    trinibwoy Meh
    Legend

    Joined:
    Mar 17, 2004
    Messages:
    12,058
    Likes Received:
    3,116
    Location:
    New York
    It's not that CPU limited - adding a second GTX gives a decent boost in 3dmark05.

    So you're saying the score could be true, but the reported specs are wrong?
     
  4. Carl B

    Carl B Friends call me xbd
    Legend

    Joined:
    Feb 20, 2005
    Messages:
    6,266
    Likes Received:
    63
    I've always wondered about the SLI jump as well, honestly. Word is an Athlon FX gives you a good boost over, say, a 3500+ in a single card configuration. Not sure how the SLI seems to circumvent that. But it's true, the implication would be it's not *that* CPU limited.

    Also since VR-Zone and HKEPC worked on that article in HKEPC jointly, I would - if we're going to accept the numbers out of HKEPC - at least feel inclined to accept the pipeline configurations coming out of VR-Zone as well.
     
    #1584 Carl B, Sep 12, 2005
    Last edited by a moderator: Sep 12, 2005
  5. KimB

    Legend

    Joined:
    May 28, 2002
    Messages:
    12,928
    Likes Received:
    230
    Location:
    Seattle, WA
    Which isn't important for current-generation graphics hardware. Communication is quite limited (output from the vertex shader goes to the triangle setup, which goes to the pixel shader, etc.).
     
  6. _xxx_

    Banned

    Joined:
    Aug 3, 2004
    Messages:
    5,008
    Likes Received:
    86
    Location:
    Stuttgart, Germany
    Maybe HDR+AA? :razz:
     
  7. KimB

    Legend

    Joined:
    May 28, 2002
    Messages:
    12,928
    Likes Received:
    230
    Location:
    Seattle, WA
    How is that related at all?
     
  8. Skrying

    Skrying S K R Y I N G
    Veteran

    Joined:
    Jul 8, 2005
    Messages:
    4,815
    Likes Received:
    61
    Isnt 3DMark05 vertex limited more than anything else? I'd say that's where the good boost of having SLI comes in handy. I dont really think 05 is CPU all that much at all, thought it may be a tiny bit.

    In the end I think it has little at all matters, even less if it really is vertex limited, I dont see much popularity in vertex shaders, its all about the pixels....
     
  9. Kombatant

    Regular

    Joined:
    May 29, 2003
    Messages:
    639
    Likes Received:
    19
    Location:
    Milton Keynes, UK
    Is your enthusiasm rising again Dig? :)
     
  10. digitalwanderer

    digitalwanderer Dangerously Mirthful
    Legend

    Joined:
    Feb 19, 2002
    Messages:
    18,990
    Likes Received:
    3,529
    Location:
    Winfield, IN USA
    Well, my interest has definately been tickled and piqued at least. ;)
     
  11. Neeyik

    Neeyik Homo ergaster
    Veteran

    Joined:
    Feb 6, 2002
    Messages:
    1,231
    Likes Received:
    45
    Location:
    Cumbria, UK
    In SLI mode, 7800 GTX are CPU limited and not vertex shader limited in 3DMark05 - ask ChrisRay, as he's done some tests to verify this where he disabled various quads and VS pipes.
     
  12. Skrying

    Skrying S K R Y I N G
    Veteran

    Joined:
    Jul 8, 2005
    Messages:
    4,815
    Likes Received:
    61
    You're not taking what I said correctly. I know its CPU limited to a point, but I have also heard a lot that 3DMark05 is heavily vertex limited, and adding another 7800GTX would logically increase the speed? If a single 7800GTX was already CPU limited in 05 then I'd expect the gains to be much less when moving to SLI.
     
  13. Neeyik

    Neeyik Homo ergaster
    Veteran

    Joined:
    Feb 6, 2002
    Messages:
    1,231
    Likes Received:
    45
    Location:
    Cumbria, UK
    Yes it's heavily vertex limited for single card systems, but as I said for a 7800GTX SLI setup it's not.
     
  14. Dave Baumann

    Dave Baumann Gamerscore Wh...
    Moderator Legend

    Joined:
    Jan 29, 2002
    Messages:
    14,090
    Likes Received:
    694
    Location:
    O Canada!
    Why is anyone continuing to link to anything from VR-Zone on this subject?
     
  15. Neeyik

    Neeyik Homo ergaster
    Veteran

    Joined:
    Feb 6, 2002
    Messages:
    1,231
    Likes Received:
    45
    Location:
    Cumbria, UK
    Probably because people don't want to read 160 odd pages of stuff! Whadda think boss - time for a quick summary and a lock?
     
  16. Carl B

    Carl B Friends call me xbd
    Legend

    Joined:
    Feb 20, 2005
    Messages:
    6,266
    Likes Received:
    63
    I think it's because they've been dealing with actual samples - if only through HKEPC - which certainly raises their credibility in my mind. I mean if there's some definitive reason why we shouldn't be linking to them, by all means don't hold back. :)
     
  17. Dave Baumann

    Dave Baumann Gamerscore Wh...
    Moderator Legend

    Joined:
    Jan 29, 2002
    Messages:
    14,090
    Likes Received:
    694
    Location:
    O Canada!
    How on earth do I make it more obvious without actually meeting each of you in person and hitting to in the face with a frying pan before and after actually saying it?
     
  18. digitalwanderer

    digitalwanderer Dangerously Mirthful
    Legend

    Joined:
    Feb 19, 2002
    Messages:
    18,990
    Likes Received:
    3,529
    Location:
    Winfield, IN USA
    I don't know, mebbe you could TELL US!!! :???:
     
  19. Ailuros

    Ailuros Epsilon plus three
    Legend Subscriber

    Joined:
    Feb 7, 2002
    Messages:
    9,511
    Likes Received:
    224
    Location:
    Chania
    Uhmmm that I would like to see LOL :D
     
  20. trinibwoy

    trinibwoy Meh
    Legend

    Joined:
    Mar 17, 2004
    Messages:
    12,058
    Likes Received:
    3,116
    Location:
    New York
    bwahaha!! :lol::lol:
     
Loading...
Thread Status:
Not open for further replies.

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...