The Yuan dynasty differed from the Ilkhanate and Golden Horde primarily in that "The Yuan dynasty did not adopt cultural customs of people they conquered."
The Yuan dynasty, established by Kublai Khan, maintained a distinct Mongolian identity while also incorporating Chinese administrative practices and culture, but it was more focused on integrating into the existing Chinese society than the other two Khanates were with the cultures they governed. In contrast, the Ilkhanate adopted Islam and integrated Persian culture significantly, and the Golden Horde had varying degrees of cultural exchange with the peoples they ruled.
While the other statements about religion and trade may have some truth, they don't capture the key distinction in cultural integration as well as the first response does.