You could say that the two things are not even on the same level

When two things are [on a level][1]:

on a level with
Equal with.
‘they were treated as menials, on a level with cooks’

So when the two are things are not on the same level one is superior to the other. [1]: https://en.oxforddictionaries.com/definition/level

You could say that the two things are not even on the same level

When two things are on a level:

on a level with
Equal with.
‘they were treated as menials, on a level with cooks’

So when the two are things are not on the same level one is superior to the other.