JoJoGabor
Expert
Expert

Initially I thought you were talking about server virtualisation, hence the lower figure. WHen I do capacity plans, setting thresholds of 80% CPU and 90% RAM, they usually come up with a consolidation ratio of no more than 15. Servers tend to average around 5% CPU utilisation. In reality we can usually get these up to 20ish as the tool is quite conservative.

Now for Virtual desktops most desktops average around 1% CPU utilisation and lower RAM utilisation so you can get more per host. Depending on the utilisation you will be able to get many more per host. Also remember that you can overcommit the memory on ESX (fine for a VDI solution, I wouldnt deliberately do it in a server environment) So you may run 50 VMs and give them 1.5 - 2GB RAM each on your 64GB host, as long as the total used memory doesnt exceed 64GB your perfromance will be good.

Sorry for the confusion between server and desktop

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