Is 700-1200RPM ±10% good enough for cooling pad?

That's the rated speed for my 140mm dual pad fans, which I assume is better at cooling my laptop than my dual 70mm fans spinning anywhere from 0-6144RPM. The ± symbol basically means more or less/give or take, and after it is 10%; thus, the actual speeds can range from 630-1320RPM depending on ambient temperature and airflow. I know there exists cooling pads out there that go up to 3000RPM and even larger fan diameter, but I really don't need those.