VMmark virtualization benchmarks

Hi,

We have to make a decision to buy 10 new servers for MS Exchange/Domain Controller running virtual tiles and for hardware we have choice of HP Proliant DL380 G6, Dell PowerEdge R710 & IBM X3650 M2, somebody sent me comparison of VMmark virtualization performance benchmark which states that HP Proliant performs best among these, I just want to know if anybody has used VMmark and how reliable it is?

HP has posted some very impressive VMmark scores for the DL385G7:

30.60 @ 21 tiles for a 24x2.3Ghz Core , 128GB RAM box. This is a lot higher than the estimate of 26 used in the Anandtech-MC-Westmere comparison and is actually higher than the 24x2.8GHz, 128GB Istanbul result for the DL585G6.

The two posted Westmere results are higher but do have 192GB of RAM installed. Now it may or may not be that Westmere can make more use of that additional RAM in VMmark (small VMs) but looks like AMD has done very well indeed.