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_26040604_1 (die_size__mm_2__ INTEGER, sm_count VARCHAR)

### Question ###
What is the minimum die size for an SM count of exactly 2?

### Accurate SQL ###

SELECT MIN(die_size__mm_2__) FROM table_26040604_1 WHERE sm_count = 2