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(new set of) Nvidia G80 specs leaked?

Discussion in 'ATI' started by AirRaid, Oct 5, 2006.

  1. AirRaid

    AirRaid Guest

    NVIDIA G80 specifications leaked?
    05-Oct-2006, 17:35.29 Reporter : Uttar
    DailyTech has leaked apparently reliable specifications for NVIDIA's
    upcoming G80. They claim it will be hard launched in the second week of
    November and that the initial line up consists of the GeForce 8800GTX
    and the GeForce 8800GTS. Both cards are apparently based on an unified
    design, with the full chip consisting of 128 "stream processors", while
    the GTS will have only 96 enabled for yield reasons. The information
    further confirms other tidbits originally revealed by some
    this made the front page of beyond3d.com



    NVIDIA G80 specifications leaked?
    05-Oct-2006, 17:35.29 Reporter : Uttar

    leaked chinese powerpoint slides, including a 384-bit memory bus for
    the GTX and a 320-bit memory bus for the GTS, with 768 and 640MB of
    video memory for the two SKUs.

    The specifications also claim that the unified stream processors are
    clocked at 1.35GHz for the GTX and 1.2GHz for the GTS, while the
    control logic, schedulers, ROPs, etc. are clocked at 575MHz and 500MHz
    for the GTX and the GTS, respectively. Other DailyTech news pieces
    published today reveal power requirements of 400W to 450W for a
    G80-based system, and 800W for one based on SLI G80s. As always, these
    numbers tend to be highly exaggerated in order to reduce potential
    problems with subpar OEM PSUs. Other related articles claim FP32 HDR
    and 16x AA support, both of which have been hinted at in the past, and
    the former actually being a requirement for D3D10. To be more precise,
    FP32 blending is a requirement, while FP32 filtering is optional. A
    fourth article on the site also speaks of NVIDIA's "Quantum Physics"
    engine, which is most likely a marketing name for the better
    acceleration G80 delivers to physics computations.

    It should also be noted that DailyTech lists some rather unlikely
    numbers in terms of memory clocks and texture rate. They list the GTX
    as having 86GB/s of bandwidth, and the GTS only 64GB/s. However, they
    also claim both have 900MHz GDDR3, which is highly unlikely. It should
    be relatively clear that this was a simple typo, and that the GTS
    actually sports 800MHz GDDR3. As for texture rates, they give the
    number of 38.4GPixels/s for the GTX, but few logical ways exist to
    attain such a number with the specified clockrates. As such, it seems
    much more likely that this part of the specification relates to the
    GeForce 8800GTS and its 1200MHz stream processors.

    AirRaid, Oct 5, 2006
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  2. AirRaid

    DaveW Guest

    Do you know if it's DX 10 capable?
    DaveW, Oct 6, 2006
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  3. AirRaid

    John Lewis Guest

    Of course. And Shader model 4.0 too.

    see Anandtech Daily News.

    John Lewis
    John Lewis, Oct 6, 2006
  4. AirRaid

    Richard Guest

    [Please do not mail me a copy of your followup]

    (John Lewis) spake the secret code
    I'm waiting for an SM 4.0 capable laptop, but given how much heat this
    thing is putting out, it looks like its going to be a while.
    Richard, Oct 7, 2006
  5. AirRaid

    jukka Guest

    I wonder how noisy that sucker will be considering the two external
    power connectors on the board!?

    Can't leave computers on these days if not using them - wife is
    complaining about the noise! Nice energy saving trick, good job NV and
    jukka, Oct 13, 2006
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