Are dog’s really that different?
Not only do dogs temperament and personality differ greatly from breed to breed, but within the breeds as well. In fact according to this article what makes up the breed is less than .25% of their genetic makeup. So dogs of the same breed only share that much DNA, the rest is unique. It would be incorrect to assume their behaviors and personalities just based on breed. Mixed breeds are even less alike, even if they are from the same litter.
Your dog is unique. Don’t compare him to a other dogs. He may generalize better or worse than other dogs. He may require more patience. They are individuals just like us and require different amount of work or have different motivations. However that does not make one dog less intelligent than another.