VDI vs RDS

VDI vs RDS

An Overview of Virtual Desktop Infrastructure (VDI)
This flexibility provides an isolated environment for the user. As each user enjoys a dedicated Virtual Machine with an operating system, they can install or uninstall applications with full or partial administration rights within the VM. A connection broker is used to manage these VMs. VDI is particularly useful when businesses have to deal with critical and confidential data. V

An Overview of Remote Desktop Service (RDS)
Remote Desktop Service (RDS), a proprietary protocol of Microsoft, allows users to connect remotely to a network with a graphic user interface.
While the RDS client is installed on the user system, the RDS server software is installed on the server, and a remote connection is established with one or more terminal servers.
While users in the RDS network connect to the server using a VM, this VM is shared with other users and operates on the same server operating system (OS) for all users.

VDI combines some of the best aspects of the PC and terminal services.
the fact that each user gets a separate VM creates complexity for the IT staff, wherein it has to manage multiple instances of the OS, updating and patching them

On the other hand, RDS sessions involve multiple users using the same VM and server OS
As there are not many windows instances involved, managing and updating the software is easy.
Moreover, less CPU and memory resources are utilized, which facilitates having more users per system
By deploying a cluster of terminal farms, organizations can provide a high availability of services
By deploying a cluster of terminal farms, organizations can provide a high availability of services.
Based on the number of remote users, VMs can be created and disposed of as well.
However, RDS services do not provide complete administrative rights as resources have to be shared between multiple users.

VDI is a part of RDS networks.
As both RDS and VDI uses Microsoft protocols, the performance levels are almost the same
Any third-party software configuration would make a difference
however, when it comes to user-centralized environment, RDS networks are cheaper and less complex in nature. As it involves the same management and mechanism, RDS gains a slight edge over VDI.

http://www.2x.com/vdi-vs-rds-cloud-requirements/