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I've recently installed 197.13 but stupidly deleted the download for the old drivers and can't remember which they were- think it was 186(something). My GTX260 is now unstable at OC's that were running fine on every game before I updated the drivers. I didn't realise that it could make such a difference! Not sure if the issue is that Riva tuner isn't set up for the new drivers yet- this could be causig the OC problems I guess
It runs fine at stock or a mild OC (by fine I mean it's stable, I don't know though if it's faster or slower in terms of FPS)
I might try going back to a little after the GTX285 release driver and working forward. That's when things started getting odd IIRC.
i've done comparing between drivers running Haven (DX10, 1920x1200, AAx2, Anix4, fs) and Call of Juarez benchmarks.
best results were for drivers 186.18, but a lot of new games wont run with it so i had to opt for the second best 191.07.
i get avg 33 fps in Haven in mentioned above settings, CoJ bench is running max settings with 27 fps avg.
now, when using 197.13 and up, frames in Haven drop by half, also there's stuttering and pauses when switching scenes.
CoJ benchmark turns into a slideshow with 10 fps average.
DX9 games like Mass Effect suffer from micro stuttering and annoying pauses, when paired with new drivers.
Nvidia is playing it naught so im going ATi next month i guess...