exactly.
common layperson's mistake.
GHz is important, because it is the more fixed of the two.
the derivative (Gbps) is less important, because it is more fungible, i.e., it can be more easily improved over time e.g., with more sophisticated symbol modulation (8B/10B, or QPSK vs 256QAM for example).
CP does (did?) it (mixing up) all over the place.
even Patty used to do it.
this might help.
or this.
GLAL,
R.