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_23028629_2 ( frequency VARCHAR, model_number VARCHAR )

### Question ###
How many frequencies have a model number of core i5-655k?

### Accurate SQL ###

SELECT COUNT(frequency) FROM table_23028629_2 WHERE model_number = "Core i5-655K"