Intel Xeon E5-2603 1.8 GHz 10 MB 80 W switch module

Intel Xeon E5-2603 quad-core server processor

This Intel Xeon E5-2603 processor delivers four cores running at 1.8 GHz with 10 MB of L3 cache. It uses a 32 nm manufacturing process and fits the FCLGA2011 socket with a 6.4 GT/s QPI link. The 80 W thermal design power suits dense rack environments where consistent throughput matters more than peak frequency. It is not intended for workloads that demand higher core counts or faster single-thread speeds.

Sustained load behaviour and thermal envelope

Under continuous load the 80 W TDP keeps heat output predictable, allowing standard server cooling to maintain the 1.8 GHz base clock without throttling. The 10 MB shared L3 cache helps reduce memory latency during long-running tasks such as database indexing or virtualisation host duties. Builders needing higher memory bandwidth or more PCIe lanes should evaluate other options.