I don’t keep up with computer specs.
Try it and see. It won’t break anything
It’s mostly a matter of how well your computer can handle streaming video and how much. My laptop can handle 25-30 substreams running 1024 pretty well. Maybe 2-4 main streams before stuttering
SmartPSS will/should out if the box display your camera grid in low res substreams. When you double click a stream it should go to full screen using the main stream