hmmm let me see, worst Video cards...
Diamond Stealth 3D 2000 4mb (S3 Virge), I remember it was touted by S3 as a 3D gaming card...but couldn't do any 3d graphics to save itself.
Creative Graphics Blaster 3D Value 32mb (TNT2 M64), I should have got the gigabyte model sitting on the shelve next to it...the creative version was the slowest of all the TNT2 M64's...it was barely faster than my old creative Savage 4 32mb that I was upgrading from).
Gigabyte Radeon 9500 64mb, It wasn't a huge jump from my trusty Gigabyte Radeon 8500LE. even when I soft modded it to a 9500 Pro it still wasn't a spectacular as everybody made the 9500 Pro out to be, I replaced it with in a week with my mighty Gigabyte Radeon 9700 Pro (my best graphics card purchase and still my fav card of all time) which I still have in it original packaging.
Asus V9999GT 128mb (6800GT), while I did use it for awhile, it wasn't a huge leap in performance over my 9700 pro...and it cost a bloody fortune AU$699.
My Favorite...
Actix Graphix Engine 32 (S3 805B) My first real graphics card purchase, I used it for many years in my 386 and 486. I used to laugh at my friends who had faster 486's or Pentiums with Tridents in them that could run games as smoothly as my PC usued too.
Creative 3D Blaster VLB (Redention Verite 1000), Vquake used to kick ass with this card....the most expensive PC component I have ever purchased, a whopping AU$749 way back in 1995.
3DFX Voodoo 2 SLI, 1024x768 gaming was pretty sweet...and two 3D cards look cool as well, I still have these puppies.
Gigabyte 9700 PRO, this was a huge jump over what I had been using and lasted me almost 4 years before I upgraded to my over priced 6800GT.
Sapphire X1950 Pro AGP, I got the first one to arrive in Australia and it provided me with a years worth of decent gaming, it was pretty cheap too, it now resides in an older rig.