The term "Quicksort" stands for this abstract algorithmic idea:
- Pick a value $x$.
- Partition the input into $\{y\mid y \leq x\}$ and $\{y \mid y > x\}$.
- Recurse on the partitions (if they are non-trivial) and append the results.
You may want to generalise to multiple pivots, or create a third partition for elements equal the pivot, but mostly that's it.
There are many, many implementations. All of them are called "Quicksort", but many modify the name. See here for a discussion about the differences of these particular two variants.