Intel® Ethernet 700/800 Series
Windows Performance Tuning Guide
RSS Load Balancing Profile
Setting the RSS load balancing profile, Advanced Setting, to ClosestProcessor can significantly reduce CPU utilization. However, in some system configurations (such as a system with more Ethernet ports than processor cores), the ClosestProcessor setting may cause transmit and receive failures. Changing the setting to NUMAScalingStatic resolves the issue.