I'd say they pritty smart and they have all the stamina they don't stop as for speed they r rapid butt some people call them ploders. I have a saluki grey myself she out of good stuff and 6 nearly 7 mounths now she's already watching the lamp and pull my arm of for rabbits and when she playing on the fields with my other dog's she a fast little thing I love my saluki crosses all of my dogs got saluki in them I just think the saluki in a dog is a must for me