On Gabes Virtual World I read an article with the title ‘Unbelievable Hyper-V performance ‘. At first I was a bit shocked by the title. Hyper-V good performance? That the complete opposite to my own experience with Microsofts virtualization attempt. But luckily what Gabe ment was ‘Unbelievable BAD Hyper-V performance ‘.

You can read the complete article here.

Conclusion
A max score of 1,875 VMs per core where VMware ESX on the same hardware does 3,5 VMs per core. Maybe the test is not 100% accurate but with these scores maybe someone should step up and do a real hypervisor performance comparison (same hardware, load, etc).