In his case, since he isn't running substreams, he probably needs HA in order to bring the CPU down. It is only when running substreams that the CPU% to offload video to the GPU exceeds the CPU% savings by going to a GPU. Worth trying, but I think he needs it.
Sure adding a GPU may bring his CPU down, but it will also draw more power than he is currently using.
Personally at the CPU% he is running at, I wouldn't upgrade.
Sure adding a GPU may bring his CPU down, but it will also draw more power than he is currently using.
Personally at the CPU% he is running at, I wouldn't upgrade.