whats the difference between quality and high quality ?

[vX]

I was messing with my drivers last night and I always leave my drivers on the default "quality" setting, so I was feeling testy yesterday and upped it to "high quality" I didnt notice much difference in IQ but a nice drop to my frames was evident. This was during a level of half-life 2 @ 1280x1024 4xaa 16xaf.

I'm sure it's been told before, but I couldn't find any topics, and I was just curious as to what it does? Does it add another level of aa or af? I lost a good 10-15 fps with high quality enabled, so I went back to quality, and aside from the performance, I couldnt notice any difference's even after reverting back.

[PikachuMan]

You can check the "Forceware User Guide" nvidia releases with the forceware drivers for detailed information (page 145).

High quality forces off all the opts. It doesn't effect AA/AF levels.

http://img.photobucket.com/albums/v55/PikachuMan/ImageSettings.jpg

To quote nvidia themselves:
This High Quality setting is not necessary for average users who run game
applications. It is designed for more advanced users to generate images that
do not take advantage of the programming capability of the texture filtering
hardware.

[fivefeet8]

You can find your answers here:

http://www.nvnews.net/vbulletin/showthread.php?t=31535&highlight=Anisotropic+filtering