Yes, chips are identical.

Blitz_25 wrote on 2022-01-14, 15:51:

As there are not many pci riva tnt's left

How rare are they? I'm quite sure I have one somewhere, last time used about 10 years ago..

OK, thanks The Serepent Rider 😉 , i hope there was no PCB trace damage done by baking the card in an owen as all other components can be trasnplanted from donor AGP cards.
On ebay there are only few PCI riva TNT's available and all are well over 120€ while you can get an AGP version for les then 10€. That's the PCI addition to the price i guess 🙁 so Azarien if you have one of it look after it with care 😀
Even though i have one ovf them already I think it's well worth to try and fix in bring the card back to life. I will proceed with endevour as soon i get BGA soldering balls shiped.

From what i gather from the web there was only one version of the riva TNT NV4 chip (no "m64" cut down as with TNT2 NV5), is that correct?

Yes, there's only one version of Riva TNT. It is always full featured NV4.
PCI cards use some buffer chips or similar for signal voltage conversion, so there is no special PCI version of NV4 either. Transplants should be relatively simple.👍

Btw. 120€ for a PCI TNT is very overpriced. It's probably the lowest current offer on ebay but not many cards will sell for that price and cheaper cards will still regularly appear on the market.

Blitz_25 wrote on 2022-01-16, 10:52:

On ebay there are only few PCI riva TNT's available and all are well over 120€ while you can get an AGP version for les then 10€. That's the PCI addition to the price i guess 🙁 so Azarien if you have one of it look after it with care 😀

I did not expect the card could have any significant value... it's in a box together with other "junk" cards, somewhere in the dungeons (basement) of my parents' house. I'll try to find it and see if it still works the next time I'm there.

I'm scouting ebay daly over a year now and up to date i only found 1 pci TNT for around 40€ that i also bought every other pci example of TNT ot TNT2 that pops every now and then on ebay is priced well above 120€ or even 200€ and for that price it's easyer to find pci Banshee or V3.