Ok, and when do Nvidia's lawyers get involved and shut this down?
I'm thinking this probably violates a boatload of patents they hold.
It's using already-manufactured(by 3DFX) GPU chips. There's no more issue here than folks throwing RV and Muscle Car V8s in Tube Steel DIY Chassis.
No one is building the IP-protected part(s), they're just
kitbashing/salvaging+re-using.
The 'rub' would (potentially) come up if a fab/company wanted new silicon made (using 3DFX/nVidia IPs).
Even then, it might need to be settled in court.
I'm not sure if 3DFX's IP's (that nVidia inherited in the buyout) have
technically expired.
It's been decades since the buyout, and it may be difficult for nV to claim those IPs are still 'in use'.
'Dunno. But, this project (and ZXC64's) aren't doing anything 'risky' in that regard.