Will 6 cores be enough to run a homelab and local AI agents at the same time?

A homelab operator reported running eight virtual machines concurrently for over a week on an Intel i7-9750H with 6 cores and 12 threads and 64GB of DDR4 3200 memory, including one Ubuntu 26.04 VM with 16GB RAM, 4 host cores and a passed-through RTX A2000 12GB running llama.cpp, plus seven Windows 11 Enterprise IoT VMs with 8GB and a single core each sharing an i915 iGPU split via mdev to run the Heaven benchmark. The operator said the hardware "will likely get it done" for a similar workload, though they could not speak to another user's power envelope or use case.