@AXES It isn't necessarily always a question of raw computational prowess, when one considers whether or not dogs are smarter than cats. The fact is that cats have a totally different personality than dogs, typically. Cats are much more independent by nature than dogs. They don't always want to be picked up, petted, or told what to do, in general.
Cats tend to be much more finicky than dogs, they don't want to eat low-quality Dollar Store cat foods, unless they are practically starving, and I don't blame them--yuck. Cats are harder to train than dogs, on average, but that is not to say that they can not learn to listen to commands. The trick with cats is to reward them with the foods that they love, a Premium wet canned cat food, for example, like Feisty Feast.
I am not one who likes to deal in assumptions, postulations, or guesswork, and so, I present to whomever is interested, evidence that cats are not stupid: my cats performing a "dog" trick.