CREATE TABLE table_20780 ("Model number" CLOB, "sSpec number" CLOB, "Frequency" CLOB, "L2 cache" CLOB, "FSB" CLOB, "Mult." CLOB, "Voltage" CLOB, "TDP" CLOB, "Socket" CLOB, "Release date" CLOB, "Part number ( s ) " CLOB, "Release price  (  USD  ) " CLOB)

What is the l2 cache for the model with a release price of $669?
SELECT "L2 cache" FROM table_20780 WHERE "Release price ( USD )" = '$669'
SELECT "L2 cache" FROM "table_20780" WHERE "Release price ( USD )" = '$669'