Originally posted by rockouthippie
That is superior to MP3 by a lot.
Actually it's worse. Anything at or above perceptual transparency is equal in sound quality to anything else at or above perceptual transparency. In other words, "transparency is transparency".
So when comparing two formats and/or encoder settings, both at a level of perceptual transparency, what matters is efficiency
Vorbis @ -q8 = about 256kbps
LAME MP3 @ --alt-preset standard = about 210 kbps
With Vorbis -q8 you're using some 20% more disk space for the same sound quality as LAME MP3 using the --aps preset.
Vorbis @ -q7 has been shown to also be perceptually transparent, and uses about the same bitrate and disk capacity. Equal efficiency.
For many people's ears, Vorbis @ -q6 may also be be transparent, and if so, it would provide some 10% higher efficiency.
So Vorbis does
have the potential to be more efficient than MP3, but not at -q8.