> So e.g. smaller ARM CPUs don’t use micro-ops at all. But that also means they cannot do things such as OoO. Perhaps I'm picking nits, but the second sentence

> So e.g. smaller ARM CPUs don’t use micro-ops at all. But that also means they cannot do things such as OoO. Perhaps I'm picking nits, but the second sentence is not true. The dependency/resource-tracking and scheduling required for OoO execution do not depend upon using micro-ops.