The last time AMD was really on top was the 5850/5870 generation, and that was late 2009. That was an amazing generation for AMD and they stayed solidly ahead until 2011. Unfortunately they haven’t been at the pole position since then-- they had great price/performance at spots, like the 7850, but their highest-end generally lost to the green team either straight-up in performance or in heat/power at similar performance.
That’s why Nvidia is indulging in fucknuttery like increasing their prices every generation, doing “Founder’s Editions”, and so on. Without competition, consumers lose out.