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Impact of OBFF on Platform Power70%BaselineOBFFUtilizationNear-term PlatformFuture Platforms% Deep Package C-stateresidency60%50%40%30%20%10%0%% decrease in PlatformPower0%-5%-10%-15%-20%-25%-30%5% 10% 15%5% 10% 15%-35%Utilization•Data from prototype in Intel® Xeon® Processor 5500 based server platform running Linux* 2.6.18•Source: Intel Corporation• Meaningful increase in deep package C-state residency for server platforms• For Client platforms, baseline C-state residency is high. OBFF givesadditional power savings of ~>= 200mW on DMA scenarios (network/diskfile transfers)– Still significant for battery operated mobile devices– Savings increase when idle floor is lower13Increase in platform low power state residency

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