Originally posted by: BFG10K
This is a joke, right? How many times has the shimmering issue been discussed already?
nVidia's Q AF shimmers like crazy and on top of this textures often wiggle as if they were flags blowing in the wind.
The default image quality is attrocious and unusable.
Here is a comparison of nVidia's AF differences. The top one is the default setting (i.e. Q with anisotropic & trilinear optimizations on) while the bottom one is HQ (all otpimizations off, among other things).
Notice how poorly the mip-map transitions are filtered in the top shot and the lack of blending between them.
ATi's
default quality is roughly equal nVidia's
high quality. Also nVidia typically takes a 10%-20% performance hit in order to enable HQ, hence the skewed benchmarks we see when reviewers use Q.