Are graphing calculators obsolete?

Hi, I want to self-study some pure math. I have a TI-84 CE from high school. But that thing is like 8-bit and it graphs quite slow. Even the python editions are 8-bit. When i think of 8-bit, i think of the old atari game consoles from the 80's.

Are graphing calculators obsolete in this day and age?

There are only 2 good 32-bit calculators that are not ancient dinosaurs and those are the hp prime g2 and the TI-Inspire cas editions.

Should i buy one of those or skip them all together for R / Julia programming languages?

Apart from quick and one-off calculations, they don't seem very usefull.