Per Zeitgeist:

Logically, there has to be... but my take is that cats are so different from
dogs in the way they relate to people that one might not notice differences in
intelligence as readily.    

i.e. Our cat is pretty impressive at doing cat things.  For instance, he can be
playing with a bottle cap and knock it under a piece of furniture in such a way
that he cannot get at it from that side.   He will then walk around to the other
side of the furniture - where he cannot see the bottle cap - and reach under to
bat it back out into the open.   That tells me that he has enough brains to hold
the concept of the bottle cap's being under there in his little mind long enough
to go around to the other side and bat it free.

He's also good at knowing when things are going to happen each day.   He knows
when we're about to get up, he knows *exactly* when we're going to put out fresh
food... and so forth.

But people-wise his IQ seems tb in the single digits - mostly, I think, bc he
just doesn't care - he's not part of a pack like dogs are and we're not the
alpha males/females to him.   Basically it's a relationship of convenience
between equals.

Persians have to be brushed and combed daily - *at least*.  Then, for
the ones with the crushed in faces, there are breathing issues that
require intervention.

Most of mine were found on the local community online want ads pages;
some came from just asking around - two, from asking a total stranger
who turned out to be a rancher with too many kittens.

BTW, many people who have lived with cats for many years recommend
getting at couple of them, preferably from the same litter.