GIF vs APNG


clock.gif clock.png
8-bit GIF = 26371 bytes


 8-bit APNG = 23680 bytes
blink.gif blink.png
8-bit GIF = 31656 bytes


 8-bit APNG = 29360 bytes
o_sample.gif o_sample.png
8-bit GIF = 24912 bytes


 24-bit APNG = 115656 bytes



More samples: http://photobucket.com/apng