What is the difference between VM-Workstation, VM-Player and VM-Server?

What is the difference between VM-Workstation, VM-Player and VM-Server?

VMware Workstation, VMware Player and VMware Server seem like redundant products.
However, there are quite a few distinctions, that are quite apparent from their names already.
VMware Workstation is intended for "desktop use", for a user who creates and edits
Virtual Machines and uses them on his/hers desktop. It has features useful for product
development that no other VMware product has such as integration with MS Visual Studio
or VM teams, where the network between virtual machines in the team can be specified,
including bandwidth and packet loss. VMware Workstation usually gets the new virtual hardware
releases first and supports the widest guest OS range. It is optimized for interactive use and has
some Direct3D (DirectX 9) and OpenGL capabilities. The workstation is not free. More information:
http://www.vmware.com/products/ws/new.html

VMware Player is a stripped-down version of the workstation, so it offers the same virtual hardware
as Workstation. VMware Player 2.x and newer is free for non-commercial personal use only while
Player 1.x had no such restriction. In the latest version, it can both create and edit virtual machines
while it earlier could only possible to run pre-built VMs. The performance of VMware Player is very
similar to the performance of VMware Workstation. Even though Workstation 8 was released in
September 2011, we are still waiting for VMware Player 4 to be released. For more info see here:
http://www.vmware.com/products/player/features.html

VMware Server is meant for creating and editing virtual machines and running server-like loads.
It is optimized for IO rather than interactive use on the local terminal. Desktop intensive (graphical)
applications will not have too good performance when viewed through the interface provided in
VMware Server as all requests go through the network (even when you're working locally).
Server usually provides older or same generation of virtual hardware as Workstation or Player.
Server is a free product, but note that VMware Server is declared End of General Support at
06/30/2011. More information: http://www.vmware.com/products/server/features.html
http://www.vmware.com/support/policies/lifecycle/general/index.html#policy_server

VMware Server cannot be installed at the same time with Workstation/Player. This is most
likely due to conflicting, different kernel modules and cannot be circumvented.
Note that even if this article says that the intended use is something, this does not mean
that the product could not be used for something else. Just don't expect Player to be a good
Server or that you can play games on Server.

Feature comparison Feature/Product Workstation 8.0 Player 2.5 Player 3.0 Server 2.x Intended use Desktop use, test environments, Q&A, product development Run VMs made elsewhere Personal use: desktop use, testing Host production VMs Edit VM settings? Yes No Yes Yes Max RAM / VM 64GB 8GB 32GB 8GB  VSMP  Yes, 4x  Yes  Yes  Yes  Snapshots  Multiple, branchable, linked clone  No  No  Single  USB 2.0  Yes, and USB 3.0 for linux VMs  Yes  Yes  Yes  3D acceleration  DirectX 9 with Shader Model 3.0 OpenGL 2.1  DirectX 9 with Shader Model 2.0 DirectX 9 with Shader Model 3.0 OpenGL 2.1  No  Other -Integrates with MS Visual Studio / Eclipse / SpringSource - Remote replay debugging -Allows definition of properties of the virtual networks within VM teams - Record/replay functionality -Unity mode - Shared folders - Virtual disk encryption -Remote VMs -HD audio - Editing of .vmx settings by hand possible - Unity mode - Shared folders - Create / edit VMs - Unity mode - Shared folders   VMware Server is being discontinued "VMware Server was declared End Of Availability on January 2010. Support will be limited to Technical Guidance for the duration of the support term."  Cost  $199  Free

Source/Credit: VMWARE