How are they different?

What will be an ideal response?

In the Linux scheduler, a process’s effective priority can differ from its static priority
by at most 5, meaning that high-priority processor-bound processes can potentially preempt
I/O-bound processes. The Linux scheduler also prevents low-priority processes from being
indefinitely postponed.An interactive process with high priority can be requeued in the same level of run queue after its quantum expires.