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Nova ATI 8500 MAXX

Discussão em 'Novidades Hardware PC' iniciada por jdma, 9 de Julho de 2002. (Respostas: 1; Visualizações: 835)

  1. jdma

    jdma Power Member

    Aqui vão specs sobre esta placa que parece já estar em produção:


    "A little birdy handed me some information about the new Radeon 8500 MAXX from ATi - As far as I know, this is what you can consider scoop.

    R8500 MAXX

    Features
    Truform™
    Smartshader™
    AFR™
    DirectX 8.1® support
    OpenGL® 1.3
    Smoothvision™ Anti-aliasing
    Hyper Z™ III
    Charisma Engine™ II
    Pixel Tapestry™ II
    Video Immersion™ II
    High Performance Memory Support
    Dual Display Support
    Integrated Transformation, Clipping and Lighting
    Triple Cache Architecture
    SuperScalar Rendering
    Single-Pass Multi-texturing
    True Color Rendering
    Triangle Setup Engine
    Texture Cache
    Bilinear/Trilinear Filtering
    Line & Edge Anti-aliasing
    Full-Screen Anti-aliasing
    Texture Compositing
    Texture Decompression
    Specular Highlights
    Perspectively Correct Texture Mapping
    Mip-Mapping
    Z-Buffering and Double-buffering
    Emboss, Dot Product 3 and Environment bump mapping
    Spherical, Dual Paraboloid and Cubic environment mapping
    Fog effects, texture lighting, video textures, reflections, shadows,
    spotlights, LOD biasing and texture morphing
    Dual 400Mhz RAMDACS'

    A popular rumour about the ‘Radeon II’ was that it would feature two
    Radeon256 GPUs, like the Rage Fury MAXX. As you know ATI brought out the
    Radeon 8500, which I think you will agree is a much better GPU than the
    Radeon256 and featured a lot more performance than two Radeon256 GPUs.
    However, with the R300 in development, and the Radeon 8500 doing so well, it
    makes sense to release a dual Radeon 8500 board. A Radeon 8500 MAXX if you
    will, so we have more time to spend on the R300 where as the R250 isn’t
    going to be as much as an architectural change as the R300 will be. With the
    improved AFR™ technique used, we can almost double performance, without any
    of the negative effects attributed to SLI. This is the biggest new feature
    of the Radeon 8500 MAXX, but there are a few tweaks to the Radeon 8500 GPU.

    The card has updated Hyper Z™ to make more effective use of available memory
    bandwidth. It now is 100% effective at removing hidden surfaces. Also as
    part of it we have given it an extra cache (hence the Triple Cache
    Architecture). This third cache stores the Z-Buffer coordinates of the
    previous scene; I can’t go into detail on it, but it effectively compares
    the cached Z-Buffer to the new one, this in conjunction with our new HSR
    algorithm allows for much quicker removal of hidden surfaces. For example in
    UT2003 you may be walking down a path, and in front of you is a large
    structure. No matter, which way you look, you can’t see the inside of the
    structure, only the front. With HSR, the polygons you don’t see are chucked
    away before they are rendered. With the help of the cache, it will be easier
    to see that those polygons are still behind the front and can be chucked
    away straight away, before using our complex algorithm to see fully if the
    polygon can be removed, thus saving a lot of computational power, and
    leaving more room for the actual rendering of the game. (We had begun
    optimising this further but the development of the drivers was
    problematic...they might just sort out for the planned release date.)

    The dual 400Mhz RAMDACS are integrated in the Radeon 8500 GPU, but only one
    in each. The primary GPU houses the primary RAMDAC, and obviously the
    secondary GPU houses the secondary RAMDAC. This allows for all Radeon 8500
    MAXX boards, regardless of manufacturer, to support dual 24” monitors. With
    the R300 we managed to integrate the 2D filters into the GPU as well, that
    way we can ensure all R300 boards have the best 2D quality available to
    users, regardless of who makes the card. The reason for this is a lot of
    customers have expressed their desire for much sharper text at high
    resolutions, as well as more vibrant colours. (my emphasis: We have managed
    to gain some improvements from this, but its still not great.)

    We also have a daughter card that will be made available. This daughter card
    will feature full VIVO functions, expanding the features of the MAXX. The
    way the daughter board will be attached to the Radeon 8500 MAXX is currently
    still to be decided.

    A prime concern with customers was texture quality. The devs at ATI have
    taken this very seriously, and have taken great lengths to make the texture
    quality of the Radeon 8500 MAXX the best of any other 3D product, and from
    working development cards it is noticeable better than the 8500. Only other
    comments I will give on the R300 are 8 pipelines, and DirectX 9 support."


    o link da informação é:
    http://forums.tweaktown.com/showthread.php?s=&threadid=3313
     

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