Table schema:
CREATE TABLE table_name_80 (l2_cache VARCHAR, multi_1 VARCHAR, release_date VARCHAR, fpu_width VARCHAR)

Question: What is the L2 cache with a release date on September 10, 2009, a 128-bit FPU width, and a 12x multi 1?
SQL: SELECT l2_cache FROM table_name_80 WHERE release_date = "september 10, 2009" AND fpu_width = "128-bit" AND multi_1 = "12x"