What is the performance impact of running the ATI Radeon™ E2400 discrete graphics on x1 PCIe® lane vs. x16 PCIe?

Article Number: emb-365-e2400-gpu-pcie
It depends on the application and if it stores all the data in the LFB (Local Frame Buffer). The ATI Radeon™ E2400 discrete graphics is not high performance enough for it to make a drastic difference. For 3DMark™06 HDR/SM3.0, the E2400 x1 performance is about 2/3 of x16 performance.

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