What is the Difference between Hyper-V 2.0 and Hyper-V 3.0

What is the Difference between Hyper-V 2.0 and Hyper-V 3.0
The maximum number of virtual machines per host that can be powered on at any given time

Hyper-V 2.0
384

Hyper-V 3.0
1024


Maximum number of virtual machines in a cluster

Hyper-V 2.0
1000

Hyper-V 3.0
4000

Maximum number of hosts per cluster

Hyper-V 2.0
16

Hyper-V 3.0
63

Maximum RAM per host server

Hyper-V 2.0
1 TB

Hyper-V 3.0

2 TB