More RAM vs ECC memory: Extra RAM wins for VM performance

Going from 16GB to 32GB helps VMs more than switching to ECC. ECC corrects single-bit errors for stability but adds tiny latency overhead—no speed gain. The real win is the extra 16GB: no more starving VMs, overcommitting memory, or swapping to disk. Your VMs will stop gasping for RAM, but don’t expect a magical speed boost.