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_19161046_1 ( bus_width___bit__ VARCHAR, core___mhz__ VARCHAR )

### Question ###
What's the bus width (in bit) of the model whose core is 650 MHz?

### Accurate SQL ###

SELECT COUNT(bus_width___bit__) FROM table_19161046_1 WHERE core___mhz__ = 650