Those numbers up top are totally off. I am guessing someone made them up, since there are only around 100 grad students in ALL (painting, ceramics, new media, sculpture, textiles etc) departments at CCA.
Most of the SFAI faculty went to CCA after the financial collapse of the SFAI about five years ago. I believe it used to have stronger grad program-but CCA is well known to have a better grad program currently. I think the SFAI undergrad is slightly better than their grad-only from conversations I have had with former students.
CCA has a really strong grad program but San Francisco as a whole is not a great painting city, since it is not NY, London or Berlin and has very few galleries.