This more-or-less ended with 3D. The N64, mid-90s, had a novel 3D accelerator (heavily programmable, a kind of a proto-GPU). Its successor went with ATI. The Dreamcast had a PowerVR, which you could buy for your PC, and early iPhones had as well. Xbox had Nvidia. It has always been normal to find OTS parts. Never "IBM PC compatible" but again, the bubble itself is part of the core value proposition.
Honestly, we're dating ourselves with the premise.
There is exactly one generation (mid-90s) where the 3D accelerator design and industry hadn't stabilised. 3D then was like AI today. It was the rising thing. I wrote my first vertex shader on a GeForce 2.
They have common, off the shelf parts because it just isn't where the action is in 2026.
Honestly, we're dating ourselves with the premise.
There is exactly one generation (mid-90s) where the 3D accelerator design and industry hadn't stabilised. 3D then was like AI today. It was the rising thing. I wrote my first vertex shader on a GeForce 2.
They have common, off the shelf parts because it just isn't where the action is in 2026.