i have several reason,
a) the support for thier hardware for developers is just appauling unless you have ALOT of money, unless your a high profile company they just don't give a damn about you.
b) thier hardware is one step behind, even IF GeForce were alot slower as seems to be the current online claim ... ATi are about as innovative with thier hardware as a slice of bread.
c) they have constantly attacked thier competitors cards that have threatened thier own. This has happened with Videologic's KryoII card, Matrox's G400 & Perherlia cards and the most high profile GeForceFX. When they can't win technically ATI got to town on trying to destroy the competitors in a slander match.
d) they're cards are INCAPABLE of winning on thier own merits. Although the Radeon series is probably the most solid gaming card they've produced, they were very mediocre cards until the online press started praising them for some god unknown reason. And quite frankly it pisses me off to see credit given where it is not due.
there are just countless reasons i dislike ATI and thier current Radeon line ... and this latest little stunt actually goes to show just how damn far they are willing to go to discredit their competitors.
Not to mention it was ATI who raised the regflag about nvidia's so called driver cheats and everyone was like "ohh nvidia have been naughty, but ati seem to be playing by the rules"
which against recently has been proven to be totally bull, because ATi's drivers are totally cheating the system...
Textures are loaded, stored and processed in 16bpp,
Shader Floating Poinst Full Precision runs using compression 24bit even though the card is capable of 32bit...
They utilise the system ram to compile and cache Pixel Programs, this so-called amazing F-Buffer is no more than a simply driver hack ... even thier XT range can still only handle 230lines of code buffered oncard and only a mear 160lines static, 65,320 dynamic vertex lines.
Compared to the GeForeFX's which can handel 1,024 Pixel code lines and 255static Vertex, 65,535 dynamic... you then add to this the floating point and integer artitectures of both cards are different.
FX is int128 float128 colour128 whereas the Radeons are int64 float96 colour128 (even the XT's)
at the end of the day there is no conclusive evidence to truely show that the Radeons are actually any faster, they certainly as hell lack ALOT of the features, they're pretty much hated to be developed upon, and they're not recognised throughout the industry.
Quite frankly they're a mediocre card with bloody good PR.
If thier technology was even half as good and they claim it to be, then it would be able to have shown performance wise that it is superior. The kicker is that thier website you read the topbar and they proclaim thier the BEST graphics hardware suppliers.
When i've seen NO evidence that they're cards are the best, and they certainly were recognised this or last year by any of the industries top awards as such.
Thier pure arrogance and tabloid style PR quite frankly is totally uncalled for, disrespectful and just down right f**ked up!
nvidia have done nothing to ati than be thier competitor...
all they've tried to do is show off thier card as best they can, they've haven't gone out of thier way to damage their competitor - and considering they produce the ONLY ShaderC capable for OpenGL development that is used on the consoles, they could very very easily do so for this next generation and Linux games.
nvidia have given all of the graphics industry everything and ati are the only manufacture to sit there and spit what was given right back in nvidia's face and demanded more.
makes me sick