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Explore the differences and similarities between the current version and prior versions of Red Hat® Enterprise Linux® Desktop.

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  Version 4 Version 5 Version 6
  Workstation Desktop Desktop Desktop with Workstation option Desktop with Multi OS option Workstation Client
Desktop architecture support

x86, AMD64, Intel 64

Yes Yes Yes Yes Yes Yes Yes
Itanium 2 Yes No No No No No No
Desktop support limits as defined by Red Hat Enterprise Linux product subscription
Maximum physical CPUs/sockets1 2 1 1 2 1 2 1
Maximum memory Unlimited 4GB 4GB Unlimited 4GB Unlimited 8GB
Maximum virtualized guests/instances2 N/A N/A N/A N/A 4 1 1
Storage virtualization (with Red Hat GFS and Cluster Suite) N/A N/A No No No No No
Included Red Hat Network modules Update module Update module Update, Management, and Provisioning modules Update, Management, and Provisioning modules


  1. Red Hat defines physical CPUs equivalently to sockets, so a multicore and/or hyperthreading CPU is counted as a single socket when determining which subscription to purchase.
  2. Using the virtualization technology included with Red Hat Enterprise Linux.