Yes indeed. ( laten we dan ook ff een NLse site maken  ).  But you will need a lot of pictures and  knowledge.  Diamond made a lot of revisions on the voodoo1 for example.

This is what I know of the VSA-100 cards:
(*) see notes below

3dfx Voodoo 4 4000 (*)
3dfx Voodoo 4 4500 PCI old box
3dfx Voodoo 4 4500 PCI new box
3dfx Voodoo 4 4500 AGP old box
3dfx Voodoo 4 4500 AGP new box
3dfx Voodoo 4 4500 PCI DVI (*)
3dfx Voodoo 4 4500 AGP DVI/TV out (*)
3dfx VoodooMac 4 4500 old box
3dfx VoodooMac 4 4500 new box

3dfx Voodoo 5 5000 PCI
3dfx Voodoo 5 5000 AGP box
3dfx Voodoo 5 5500 PCI old box
3dfx Voodoo 5 5500 PCI new box (similar to V4 4500 pci new box)
3dfx Voodoo 5 5500 AGP old box
3dfx Voodoo 5 5500 AGP new box ('5': same font as 'Voodoo': bright green colour)
3dfx Voodoo 5 5500 AGP DVI (*)
3dfx VoodooMac 5 5500 old box
3dfx VoodooMac 5 5500 new box

3dfx Voodoo 5 6000 AGP 2x2 chip configuration
3dfx Voodoo 5 6000 AGP 4x1 chip configuration

Powercolor also did some V4's, one of them had a tv-out. But I don't know much about them so if someone could add info about these Powercolor cards, please do!

And offcourse I shouldn't forget the Quantum3D cards

(*) prototypes/specials
Unsure of the existance of the V4 4000.

This is what I know of the VSA-101 cards:

Voodoo 4-2 4200 PCI 16MB DVI
Voodoo 4-2 4200 PCI 32MB DVI (Rev 3900 A1 Link)
Voodoo 4-2 4200 AGP 32MB TV out
Voodoo 4-2 4800 PCI 32MB DVI/TV out


Voodoo 3 is somewhat more difficult due to the various OEM versions.

Avenger

3dfx Velocity 100 8MB (1TMU) (PCI/AGP?)
3dfx Velocity 200 16MB (1TMU) (PCI/AGP?)

3dfx Voodoo 3 1000 8MB 143MHz (OEM, Gateway)
3dfx Voodoo 3 1000 16MB 125MHz
3dfx Voodoo 3 2000 PCI
3dfx Voodoo 3 2000 AGP TV out
3dfx Voodoo 3 3000 PCI
3dfx Voodoo 3 3000 AGP TV out
3dfx Voodoo 3 3500 AGP
Compaq Voodoo 3 3500 AGP DVI/TV out (prototype)

There's offcourse also the difference between SDRAM and SGRAM versions though I don't know on which cards you can find SGRAM.

And again, Powercolor made several V3's of which I don't know a thing. (Anyone?)

Voodoo Graphics, Rush, 2 1000 and Banshee are in my opinion extremely difficult due to the amount of manufacturers that used these chipsets.