After almost a month being an active member here at HWF's i decided to make this thread. It covers the video cards listed below to give people a general idea on how today's video cards perform. Note these are a just a general guideline and are NOT 100% accurate.

All information is courtesy of Tom's Hardware.

The full AGP review can be viewed here >
http://graphics.tomshardware.com/gra...004/index.html
The full PCIe review can be viewed here >
http://graphics.tomshardware.com/gra...222/index.html
Graphics Card Buyer's Guide

GeForce 6800 Ultra
GeForce 6800 GT
GeForce 6800
GeForce 6600 GT
GeForce 6600
GeForce 6200 w/Turbo Cache
GeForce 6200
GeForce FX 5950 U
GeForce FX 5900 U
GeForce FX 5900
GeForce FX 5900 XT
GeForce FX 5800 U
GeForce FX 5800
GeForce FX 5700 U
GeForce FX 5700
GeForce FX 5600 U (FC)
GeForce FX 5600
GeForce FX 5200 U
GeForce FX 5200
GeForce4 Ti 4600-8x
GeForce4 Ti 4200-8x

Radeon X800 XT PE
Radeon X800 Pro
Radeon X700 XT
Radeon X700 Pro
Radeon X600 XT
Radeon X600 Pro
Radeon X300
Radeon 9800 XT
Radeon 9800 Pro 256
Radeon 9800 Pro
Radeon 9800
Radeon 9800 SE
Radeon 9700 Pro
Radeon 9700
Radeon 9600 XT
Radeon 9600 Pro
Radeon 9600
Radeon 9600 SE
Radeon 9500 Pro
Radeon 9500 128

XGI V8 Duo
XGI V5 Ultra

S3 S8 256

And here is just a small list of video card manufacturers:
3D Labs, ABIT, AOpen, ASUS, Gainward, Leadtek, MSI, PNY, Sapphire and Palit.
EDIT: If there are any cards missing please tell me and i will try to add them!