NSX-T(ransformers) is a multi-hypervisor (ESX/KVM) cousin of NSX-V.
Same SKU (if you own NSX-V 6.x, you own NSX-T 2.x).
One NSX-T Manager can have multiple vCenters as “Compute endpoints”
Standalone HTML5 client (not WebClient)
NSX-T Edges can be VMs or run on bare metal
Supports 8-way Edge ECMP but limited services on the Edge (vs V)
More/better BGP support/options/settings incl BFD
Uses Geneve instead of VXLAN for overlay due to extensible header
Protects cloud-native apps and container-level microsegmentation. The Google/Kubernetics project is protected by NSX-T