Which values are always 100% accurate?

[Popolollo]

For example, are ROPs/TMUs always accurate? Can I use that value to spot cards with modded bios, and other types of mods?
I am getting values that make no sense to me. Like 1/1 ROP/TMU on a Radeon 8500. Even if it were a 9100 or LE, that value would not make any sense. But I know nothing. Can I trust that value, and what are the other values can I actually trust, i.e. fetched directly from the card.

Thanks!!!

 

[W1zzard]

It depends on the card/generation. For some really really old cards like the ones you listed the detection code is not complete

 

[Popolollo]

Thank you for the answer. What about memory bus width, amount of vram? I am getting a 3D Prophet II Ti as 64 bit, 32mb, but should be 128 bit 64mb, just because it doesn't seem to exist an Hercules Geforce 2 Ti with just 32mb. Thanks! A friend told me it might use high density samsung chips, or quadflat pack chips. Is that possible? How do I verify?

 

[Popolollo]

The Geforce 2 Ti mentioned has only 4 vram chips, like most of 2 Tis. It was released at the same time of the Geforce 3 Ti 500.
Is there any way I can help with completing the detection code? I have a bunch of old cards whose report doesn't seem accurate. I'd be willing to help improving that.

 

[Assimilator]

The Geforce 2 Ti mentioned has only 4 vram chips, like most of 2 Tis. It was released at the same time of the Geforce 3 Ti 500.
Is there any way I can help with completing the detection code? I have a bunch of old cards whose report doesn't seem accurate. I'd be willing to help improving that.

There really isn't much value in updating GPU-Z to detect ancient GPUs that only a handful of people in the world care about. I imagine that the detection code is already very convoluted and W1zz is unlikely to be interested in making it more so, which is a maintenance overhead tax for very little benefit.