just my 2cents:
i have been using a 295GTX for the last 2-3 years, and today i have decided to upgrade and picked up an MSI N680GTX
so, with the current version of il2cod and the 295GTX i was having an average of 7-15fps and annoying stutters with the following settings (see the screen below), flying or doing anything in the sim was just impossible and with lower settings it was just looking ugly:
now, with the N680GTX and the same settings as above, i am having an average of 19-38 FPS! and i just couldn't believe how nearly smoothly it was running, the performance improvement was really really MAJOR here! it became nearly stutterless and, now definitely PLAYABLE/FLYABLE...
so far, i no longer need to wait for the new patch as i got my il2cod "fixed" somehow..
my other system specs are: i5 (oclocked to 4ghz), 8gb ram, win7 64bit