Choosing a NIC for your VM in VMware ESXI

If you let VMware to choose a network adapter automatically while creating a VM, it will select a compatible NIC type, but it may not be the one with better performance. Each generation of virtual network adapter has different features and performance levels. Considering ESXI 5 or higher versions, following are the list of network adapters available in order preference best to worst.

-VMXNET 3
-VMXNET 2 (Enhanced)
-E1000

Reference :
VMware