The Dell EMC PowerEdge R640 server is a 2-socket, 1U platform designed for dense scale-out data center computing. With Intel Xeon scalable processors and support for up to 24 DIMMs, 12 of which can be non-volatile DIMMS (NVDIMMs), the scalable architecture enables you to customize the configuration to optimize your workload performance. With the PowerEdge R640, you can maximize storage performance with a non-volatile memory express (NVMe) cache pool of up to 10 NVMe drives or an array of twelve 2.5 in. drives. For more information, see Dell EMC Online Support.
The Dell EMC PowerEdge R740xd server is a 2-socket, 2U platform designed for scalable, high-performance, software-defined storage. The versatile system architecture of the R740xd server allows you to mix any drive types to create the optimum configuration of NVMe, SSD, and hard disk drive (HDD) to meet your storage needs. With support for up to 24 SAS SSD drives or up to 12x NVMe drives, you can ensure that the storage performance scales to meet application demands. For more information, see Dell EMC Online Support.