Not only has the mighty Nvidia been dragging it's heels with driver support for the 8 series cards it seems the "Battle of the benchmarks" with ATI means so much to them the official nvidia drivers are sacrificing quite a pile of IQ to maintain pace with ATI it seems these days.
I know IQ is and can be a very subjective area to deal with, but what i have seen with my own eyes there is quite a big difference in the way the NGO vs Nvidia drivers seem to deliver IQ wise. I personaly could not care what FPS is pouring out the card unless it drops to less than about 30 to 35 FPS.
I dont want to turn this post into a typicial Nvidia bashing thread, but more a thank god NGO actually care enough to stand upto Nvidia pushing sites about and do something about it for us the end users of Nvidia GPU's. Dont get me wrong dont think i am very impressed at all with Nvidia over this but at least we have a solution available with the NGO drivers.
I decided to do the tests for two reasons because i was curious to see if what i perceived as a IQ difference was actually real or not, trying to remember what one driver vs another looks like without screenshots is not going to prove anything much i decided. Also as i have not seen any IQ comparisions of Nvidia drivers on the net, not even Nvidia one version to another Nvidia version, it is time there was i thought.
The following series of screenshots were taken on a Acronis True Image of a clean installed XP SP2 that has had all the drivers and bloat removed by Nlite, and brought upto date with the RVM hotfix addon, so no previous nvidia drivers or registry entries have ever been on the system. The screenshots were loaded into GIMP 2 and saved in .jpg at 100% quality with all the "make me a smaller file options turned off". There will be .jpg artifacts present in these but as your about to see it a tad more than let me get the magnifying glass out to see the differences.
NGO drivers used 97.92 v2
Nvidia drivers used 97.92
Warning some images are over 1.4mb
Oblivion

NGO Top - Nvidia Bottom
UT2k4

NGO Top - Nvidia Bottom
Flatout 2

NGO Top - Nvidia Bottom
You can draw your own conclusions from this visual comparision of the two drivers, i know who i will stand up and thank and who i wont. I think we all knew that IQ was compromised to some degree by Nvidia for performance but i did not expect it to quite such a big marked difference myself.