I have more memories of my 3dfx Voodoo cards than of any other old hardware. The OpenGL implementation was so buttery smooth that there is simply nothing to compare it to. Quake 2 at 120fps on a 90Hz CRT was just something else entirely. It felt like there was no input latency at all and even with a higher ping of 80-100 in RocketArena it felt smoother than modern shooters on a 144hz panel.