There are many differences between Azure Virtual Desktop (AVD) and Remote Desktop Services (RDS) and the four important ones are:

1. Control plane. The access controls, or things like authentication, authorisation, encryption, resource allocation, happen in the RD Gateway or the connection broker in an RDS deployment. They need to be hosted on some sort of server. However, in an AVD scenario, the control plane is provided by Azure PaaS. 
   
   
2. Session host. In RDS, Windows Server desktop version is the actual host session provided to the end users. In AVD, the session can either be Windows Server desktop or Windows 10 session depending on what configuration you choose. This kind of flexibility in AVD is very useful to give your users the same desktop experience that they are used to on their own home or corporate PC. 
   
   
3. Auto scaling. This really doesn't exist natively in RDS but it can be achieved via comprehensive scripting. In an AVD environment, resources automatically scale up and down on demand. If more users come in and the server struggles with the resources, AVD automatically puts more service at the back end and can shut down afterwards when users log off. This feature significantly reduces the ongoing cost of AVD hosting. 
   
   
4. Office 365 app integration. OneDrive, Teams, Microsoft Office and other Office 365 apps integrates from the beginning with AVD whereas in RDS, you have to achieve that by means of software installations such as FSLogix, containers, and etc.  

Got more questions about Azure Virtual Desktop? Please contact us at 1800 126 499 or email us at [email protected].