Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_14170 ( "Model number" text, "sSpec number" text, "Cores" text, "Frequency" text, "Turbo" text, "L2 cache" text, "L3 cache" text, "GPU model" text, "GPU frequency" text, "Socket" text, "I/O bus" text, "Release date" text, "Release price ( USD )" text )

### Question ###
What turbo has a L2 cache of 4 256 kb, a release date of June 2013, and a Model number of core i7-4770s?

### Accurate SQL ###

SELECT "Turbo" FROM table_14170 WHERE "L2 cache" = '4 × 256 kb' AND "Release date" = 'june 2013' AND "Model number" = 'core i7-4770s'