14th Generation Comparison - R640, R740, and R740xd Posted by Ryan Brown on Feb 22, 2019 xByte Technologies and ITPro.tv team-up to provide this video that covers the 14th generation Dell EMC R640, R740, and R740xd servers. Upgrades from previous generations and differences between the server models are among the items discussed. #Dell PowerEdge R640 #Dell PowerEdge R740 #Dell PowerEdge R740xd #Servers