For parallel applications, speedup is typically defined as

• Speedup(code,sys,p) = $T_1/T_p$

Here $T_1$ is the time on one processor and $T_p$ is the time using $p$ processors.

• Can Speedup(code,sys,p) become larger than $p$?

That means using $p$ processors is more than $p$ times faster than using one processor.