The latest cards, which all offer Shader Model 4.0 support, were introduced so that professionals on a budget could still keep up to speed with changing 2D and 3D technologies. The previous leader in the Quadro FX entry-level product line was the FX 560, which offered 128MB of RAM and 19.2GB/sec graphic memory bandwidth. The new FX 570 bumps the memory an additional 128MB to 256MB, but throttles down on graphic memory bandwidth to 12.8GB/sec. The low-end Quadro FX 350, unlike the other cards, uses PCI Express and does not require PCI Express x16.
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