Table schema:
CREATE TABLE table_name_42 (l2_cache VARCHAR, frequency VARCHAR, model_number VARCHAR)

Question: Which L2-Cache has a Frequency of 1333 mhz, and a Model Number of c3 1.3a?
SQL: SELECT l2_cache FROM table_name_42 WHERE frequency = "1333 mhz" AND model_number = "c3 1.3a"