My go to is the office <| sep |> they both are competing , and competing dirty . AMD first got into the scene by literally copy pasting Intel ' s chips . Intel got mad , but decided to use it as an advantage and sold the the blueprints to the x 86 blueprints . Then had them basically as a manufacturer for their own chips . After a while Intel no longer needed them and told them they could no longer copy paste there chips , but AMD still was able to use the x 86 . Then they started making there own chips . I ' d say there downfall was right after they really pulled ahead of Intel with x 64 , they sold Intel the rights same as Intel had done before . Intel got upset at this , being the lead CPU chip creator , and history . I think we will see them go back and fourth but ath the moment , Intel is really killing it with no signs of falling back .