Do all exercises improve cardio the same amount of they're done under the same scenario?

Sorry what I mean by this is. When heart rate and time spent at the heart rate is equal do all exercises have equal effects on cardio and building aerobic bases etc of there different

For example

Say you jog for 40 minutes at 70 percent max hr

And you use a stationary bike for 40 minutes at 70 percent max hr

Do these have equal effects on improving cardio?