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The GeForce 9 series is the ninth generation of NVIDIA's GeForce series of graphics processing units, the first of which was released on February 21, 2008. Products are based on a slightly repolished Tesla microarchitecture, adding PCIe 2.0 support, improved color and z-compression, and built on a 65 nm process, later using 55 nm process to reduce power consumption and die size (GeForce 8 G8x GPUs only supported PCIe 1.1 and were built on 90 nm process or 80 nm process).

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