Quake and Counter-Strike in the 1990s ran like garbage in software-rendering mode. I remember having to run Counter-Strike on my Pentium 90 at the lowest resolution, and then disable upscaling to get 15fps, and even then smoke grenades and other effects would drop the framerate into the single digits. Almost two years after Quake's release did dedicated 3d video cards (voodoo 1 and 2 were accelerators, depended on a seperate 2d VGA graphics card to feed it) begin to hit the market.
Nowadays you can run those games (and their sequels) in the thousands (tens of thousands?) of frames per second on a top end modern card. I would imagine similar events with hardware will transpire with LLM. OpenAI is already prototyping their own hardware to train and run LLMs. I would imagine NVidia hasn't been sitting on their hands either.