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PCI Express 2.0 Graphics Cards Tested

The PCI Express interface has been around for almost four years, and is in the middle of transitioning to its second generation. PCIe 2.0 effectively doubles bandwidth and offers better flexibility, while maintaining compatibility with PCIe 1.1. When PCI Express was first introduced, it provided more throughput, scalability and flexibility than the aged AGP bus, and it allowed the graphics companies ATI and Nvidia to create multi-card solutions for further 3D acceleration and quality improvement. The second generation of PCI Express was introduced with Intel's X38 enthusiast chipset, and is being carried on by Intel's X48, AMD's 790/770 family and Nvidia's nForce 7 series. But do we really need PCI Express 2.0 today?

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