My first serious attempt at overclocking a graphics card was about 26 years ago, getting a whopping 190 MHz on an Nvidia Riva TNT2 Ultra, which normally ran at 150 MHz. I was so pleased with myself that I told everyone and anyone about my achievements. So when I learned that AMD and a top overclocker managed to hit 4,769 MHz on a little Radeon chip, I certainly expected something more noteworthy than a brief video and nothing else.
The video in question is on YouTube, the AMD Gaming channel, and runs for less than two minutes. It features the efforts of AMD's Bill Alverson and Allen 'Splave' Golibersuch, the latter being a giant in the overclocking world.