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Maximum GPU Density, Familiar 2U Rack Simplicity
Last Updated: Aug 25, 2026
The Lenovo ThinkSystem SR650a V4 is an ideal 2-socket 2U rack server for customers who want to maximize GPU compute power while retaining a traditional 2U rack form factor. It supports up to four double-wide GPUs or eight single-wide GPUs at the front of the chassis, paired with one or two Intel® Xeon® 6 processors (up to 86 cores, 350W TDP) featuring Intel® Advanced Matrix Extensions (Intel® AMX) acceleration for deep learning training and inference.









