Dell PowerEdge R650xs — Full Technical Specifications

The comparison that decides this purchase is a single line — memory slot count — and everything else in the table follows from it. If your workload is bounded by memory capacity or bandwidth, the fuller model is the honest answer and the saving here is illusory; if it is bounded by cores or by the network, this is the same machine for less. The bay row offers a large-format and a small-format build, and the smaller one is what almost every cluster buys. Power supplies stop lower here than on the flagship, which is a real limit once the processor and the drives are both at the top of their ranges.