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NVIDIA RTX 4080 12GB & 16GB Based on Different Chips, Vastly Different Shader Count

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    NVIDIA RTX 4080 12GB & 16GB Based on Different Chips, Vastly Different Shader Count

    Different strokes for different folks.

    It looks like NVIDIA is debuting the RTX 40-series with at least three models—RTX 4090 24 GB, RTX 4080 16 GB, and RTX 4080 12 GB. The RTX 4090 is the top-dog part, with the ASIC code "AD102-300-xx." It's endowed with 16,384 CUDA cores, a boost frequency of up to 2.52 GHz, 24 GB of 21 Gbps GDDR6X memory, and a typical graphics power (TGP) of 450 W, which is "configurable" up to 600 W. The RTX 4080 16 GB is based on the AD103-300-xx" comes with 9,728 CUDA cores, a boost frequency of 2.50 GHz, and 16 GB of 23 Gbps GDDR6X memory across a narrower memory bus than the one the RTX 4090 comes with. This card reportedly has a 340 W TGP configurable up to 516 W.

    The GeForce RTX 4090 12 GB is positioned a notch below its 16 GB namesake, but is based on the smaller AD104 chip, with 7,680 CUDA cores running at speeds of up to 2.61 GHz, 12 GB of 21 Gbps GDDR6X memory, and a TGP of 285 W that's configurable up to 366 W. It's interesting how the leak includes not just TGP, but also maximum configurable TGP. The various board partners will utilize the latter as their power limits to achieve overclocked speeds. Even the NVIDIA Founders Edition board is technically "custom design," and so it could feature higher-than-stock TGP.


    Sources: techPowerUp!, VideoCardz.com

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