CREATE TABLE table_name_80 (l2_cache VARCHAR(255), multi_1 VARCHAR(255), release_date VARCHAR(255), fpu_width VARCHAR(255))
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"