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_12740151_8 (price___usd__ VARCHAR, l3 VARCHAR)

### Question ###
What's the price (in USD) of the model whose L3 is 18 mb?

### Accurate SQL ###

SELECT price___usd__ FROM table_12740151_8 WHERE l3 = "18 MB"