Nice article, very informative and interesting to read, now the bad parts (which there are only a few). I stay in SA not the USA so prices of course are much different, but not by much since we import from USA and other places for the gpu's we got. So lets start off with the GTS250, this card exists without reason, has a terrible price/performance ratio and has similar power as the 4850, yet it cost double the amount of a 4850, YES its true, the 4850 can be found for just over R1000 and the 250 for just over R2000 (convert to dollars if you want). Then the 9600GT over the 4770? please if the prices are anything to go by where i live, i can get a 4770 at R1400, against the 9600GT at R1500, And the 4770 kills the 9600 in most cases, not to mention two 4770's in xfire = amazing price/performance ratio. The Radeon 4830, a cut down 4850, Is not good at all, price here is R1700, not only is it overpriced but it also gives in a weaker performance than the 4770, i thought that it has some 4850 heritage in it, it will oc well, but i was wrong, infact with some tests i have done with the 4830, it had significant stability problems with normal use, never mind step up.
I may seem as a radeon fanboy but actually im not at all, im still running right now a 7800GS, that still gives me playable performance in every game i play, and it's paired with a athlon 3200+ yet i still play the new games, so i like nvidia on that part. But there pricing and re-branding is just getting stupid, its like there is a global surplus of G92 chips somewhere that nvidia want to get rid off, and there price to performance ratio is way out, like intel's Q8200 compared to the athlon x4 620, its much more expensive and gives less performance and no future proofing to boot.
other than that, Nvidia cards are not bad, just wish they where a hole lot cheaper, this was my 2c. I also know that gpu's here are overprice (i think, dont want to do math now xD) but they should still be comparable to USA prices when it comes to the price/ performance ratio.
(resolutions i used when testing a few things was 1920x1080, and the more mainstream 1680x1050 but of course at the more mainstream res, the performance between many cards are not much, being that its a decent gpu)