To anyone concerned about this , know that insertPsychologist is entirely clueless on this matter. Departmental funding at these state schools does not track overall university funding at other departments. TAships are often "topped off" with departmental funding in order to meet some minimum guaranteed offer that is conveyed to you upon admission (yes, in a formal offer letter, not some unwritten agreement with a wink and a nod as insertPsychologist suggests). If they're a top department in an expensive city, even state schools will often offer quite high guaranteed minimums in order to be competitive (we're talking mid-20s to low-30s). A place like UT Austin will be able to offer a bit less than a place like UCLA, and similarly a place like UCLA will be able to offer a bit less than a place like Berkeley given cost of living in the Bay Area.
I find it appalling that insertPsychologist feels the need to pontificate about funding at other departments in this way and thereby spread harmful misinformation. Anyone with an offer in hand already knows insertPsychologist is full of baloney, but it would be a shame if others didn't apply having been misled.