No Nvidia GPUs support SR-IOV per say. There are some cards with an equivalent feature called vGPU, but it is not based on SR-IOV. For newer (ie actually relevant) software and hardware, this requires expensive licensing.
Some AMD cards do have SR-IOV. There are a number of caveats to these, mainly driver support for the host. The s7150 supports ONLY ubuntu 16.04 as the host for KVM virtual machines, or you have to pay for the high priced versions of xen or vmware.