KVM is very similar to XEN virtualisation in that each indivdual VPS boots its own kernel. Each virtual machine has private virtualized hardware; a network card, disk, graphics card and its own dedicated memory. KVM is sometimes prefered as resources are more dedicated, but in recent times it has become aparent that some unscruplous hosting companies have found ways to oversell on KVM. VPSNine does not oversell on KVM or OpenVZ plans.
Your VPS also comes with: