@up Thank you, collecting all this was NOT easy
For those who don't know what is what, here's list of cards from pic earlier, (from top left, and going right) :
1) GeForce 6800 Ultra
2) GeForce 6600 GT 256MB GDDR3 (500/1000MHz)
3) Radeon 8500 128MB
Second row :
4) GeForce 5950 Ultra (w/ACS type NV4 cooler, BIOS OC'ed to 500/1000MHz)
5) GeForce 7600 GS 256MB GDDR3 (BIOS moded to 7600 GT), AGP 3,3V support (probably, not tested yet)
6) Radeon 9800 XT (w/ACS type ATI3 cooler, BIOS OC'ed to 425/770MHz)
3-rd row :
7) GeForce 4600 Ti 128MB (w/XC-70Cu cooling, long screws - for compatibility reasons - were "donated" from other cooler)
8 ) Gainward 7900 GS Golden Sample 512MB (S/N : "XNA/790GS+T352-PM8370-GS", 20PS/7VS hardlocked)
9) Radeon X850 XT (can be OC'ed to PE - I checked
)
4-th row :
10) Gainward GeForce 3 Ti 200 128MB (changed cooler, stable on 3 Ti 500 spec.)
11) HIS Radeon HD 4670 1GB 750/1600 "IceQ" edition
12) Sapphire Radeon X1950 Pro 512MB
5-th row :
13) GeForce 2 Ti 64MB (stable on "GF2 Ultra" settings)
14) HIS Radeon HD 3850 IceQ3 512MB AGP => the fastest "stock" AGP GPU
15) Sapphire Radeon HD 2600 XT 512MB GDDR3