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What is the difference between VT-d and VT-x in terms of virtualization support?

gateguard asked
Last Modified: 2013-12-10
I want to buy a Dell server and run ESXi but I want to make sure I get the right chip.  Under the system requirements for vMA (vSphere Management Assistant), it says that VT-d technology is required on the chip.

On the chip I am looking at (Xeon E5630), the Intel site says it has VT-x technology.

In a Wikipedia article on the subject it seems that VT-d is newer than VT-x.  

What I care about is that the Xeon E5630, with VT-x support, is everything I need for full 64-bit ESXi and vMA.

If anybody has any opinion on this I'd appreciate it.


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