The OVF templates for VMmark 2.5 are compatible with vSphere 5.1 and later. VMmark 2.5 is compatible with hosts as old as 4.1. To run VMmark on vSphere prior to 5.1, please configure the virtual machines from scratch as described in the VMmark Benchmarking Guide. We provide the OVFs for your convenience, and the OVF VMs are equivalent to configuring the VMs from scratch.
Thanks,
Rebecca