CREATE TABLE table_56644 ("Model number" TEXT, "sSpec number" TEXT, "Frequency" TEXT, "L2 cache" TEXT, "Mult." TEXT, "Voltage" TEXT, "Socket" TEXT, "Release date" TEXT, "Part number ( s ) " TEXT, "Release price  (  USD  ) " TEXT)

What is the L2 cache of the microprocessor with model number pentium dual-core t3400?
SELECT "L2 cache" FROM table_56644 WHERE "Model number" = 'pentium dual-core t3400'
SELECT "L2 cache" FROM "table_56644" WHERE "Model number" = 'pentium dual-core t3400'