Table Updated: Feb 2017

vSphere 4.0 vSphere 4.1 vSphere 5.0 vSphere 5.1 vSphere 5.5 vSphere 6.0 vSphere 6.5
Hypervisor ESX & ESXi ESX & ESXi ESXi ESXi ESXi ESXi ESXi
CPUs per host 64 160 160 160 320 480 576
RAM per host 1 TB 1 TB 2  TB 2  TB 4 TB 12 TB 12 TB
vCPU per VM 8 8 32 64 64 128 128
vMEM per VM 255 GB 255 GB 1 TB 1 TB 1 TB 4 TB 6 TB
VMDK Size 2TB 2TB 2TB 2TB 62 TB 62 TB 62 TB
Cluster Size 32 32 32 32 32 64 64
FT Max vCPU 1 vCPU 1 vCPU 1 vCPU 1 vCPU 1 vCPU 4 vCPU 4 vCPU
VM Hardware Version 7 7 8 9 10 11 13
VMFS Version 3.33 3.46 5.54 5.58 5.60 5.61 6.81
New Features – Distributed Switch
– Update Manager
– Fault tolerance
– Host Profiles
– Storage vMotion
– Linked Mode
– Enhanced vMotion – Compatibility
– Distributed Power Management
– Hot Add VM CPU/Memory
– VMDirectPath
– VMXNET3
– Boot from SAN
– Scripted Installation
– Storage I/O Control
– DRS Host Affinity
– Memory Compression
– Array Integration
– Network I/O Control
– Auto Deploy
– Storage DRS
– vSphere Storage Appliance
– Profile driven storage
– vSphere Web Client
– vCenter Server Appliance
– ESXi Firewall
– Single Sign-On
– Enhanced vMotion
– Sparse Virtual Disks
– Single-root I/O Virtualization
– vSphere Replication
– vSphere Data Protection
– vShield Endpoint
– vSphere Flash Read Cache
– Virtual SAN
– Reliable Memory Technology
– vSphere Big Data Extensions
– vCenter Single Sign-On 2.0
– vSphere App HA
– 40GBps NIC Support
– Virtual Volumes
– vMotion across vSwitches
– Cross vCenter vMotion
– Native Linked Mode
– Platform Services Controller
– Certificate Authority (VMCA)
– Content Library
– vCenter Migration
– vCenter Server High Availability
– vCenter Backup and Restore
– REST API
– Virtual Machine Encryption
– Encrypted vMotion
– Audit Logging
– Proactive HA
– HA Orchestrated Restart
– Automated UNMAP
– vSphere Integrated Containers
Management C# Client C# Client C# Client
Web Client
C# Client
Web Client
C# Client
Web Client
C# Client
Web Client
Web Client
HTML5 Client
Authentication Management Single Sign-On Single Sign-On 5.5 Platform Services Controller Platform Services Controller
Backup Strategy VMware Data Recovery (VDR) vSphere Data Protection (VDP)
vMotion Support – Boundary: Datacenter
– Shared Storage required
– max. 5ms RTT
– Boundary: Datacenter
– Shared Storage required
– max. 10ms RTT
– Boundary: Datacenter
– max. 10ms RTT
– Boundary: Datacenter
– max. 10ms RTT
– vMotion across vCenters
– vMotion across vSwitches
– max. 100ms RTT
Virtual SAN VSAN 5.5 VSAN 6.0
VSAN 6.2
VSAN 6.5
HA Agent AAM
Automatic Availability Manager
FDM
Fault Domain Manager
VAAI Primitives – Atomic Test & Set
– Cloning Blocks
– Zeroing File Blocks
– Atomic Test & Set
– Cloning Blocks
– Zeroing File Blocks
– UNMAP
– Quota Exceeded Behavior
– TP LUN Reporting
– NFS Full File Clone
– NFS Space Reservation
– NFS Extended Stat
– NFS Space Reclaim
– NFS Fast File Clone
vCenter Type Windows Windows Windows
Linux (vCSA)
Windows
Linux (vCSA)
Windows
Linux (vCSA)
Windows
Linux (vCSA)
Windows
Linux (vCSA)
vCSA Scale (vPostgres) 5 Hosts
50 VMs
5 Hosts
50 VMs
100 Hosts
3000 VMs
1000 Hosts
10000 VMs
2000 Hosts
25000 VMs