CREATE TABLE table_13869651_3 (ht VARCHAR, model_number VARCHAR)

What is the HT value of threw Athlon x2 5200b model?
SELECT ht FROM table_13869651_3 WHERE model_number = "Athlon X2 5200B"
SELECT "ht" FROM "table_13869651_3" WHERE "Athlon X2 5200B" = "model_number"