Not really that excellent. DiVX 6.9.2 (Pro) encoding gives me an average of 30fps, XViD 1.3.1 23-25fps, VP8 barely 18fps on the same PC for the same film. Sometimes, while reading reviews, I feel like company employees write them.
Google VP8 Video Codec 1.1.0 on 10 April 2011, reviewed by: dw817
For EVERYTHING, live-action, cartoons, anime, and CGI, this video codec totally rocks. It beats the socks off XviD, DivX and WMV by far for small bitrate encodings (128kbps).
The quality is so good it doesn't need filters or video noise to "clean it up" afterwards like DivX and XviD do.
You owe it to yourself to look at this incredible video codec. It is a shame it does not play on my portable devices, compare and see for yourself the seriously improved quality at the same k/sec.
It also has a dirt simple user interface:
K/sec, quality-preset, and whether it's fixed, variable, or 1st/2nd pass.
My only complaint is I've encoded hundreds of videos in XviD now for the past several years and I seriously want to re-encode them all in GV now for the clearly marked improvement in the end video at the same k/sec. Augh ! ☺
Google VP8 Video Codec 1.1.0 on 08 April 2011, reviewed by: BaKalism
As my result, seem VP8 not so good with anime encoding. I tested x264 and VP8 with same files, my result is VP8 got a lot of blur but good shape, somehow it loss a lot of detail and x264 overall is good but not blur and less shaping than VP8 and yes x264 don't loss any detail like VP8.
My opinion is VP8 need to develop more to step forward on x264