Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_269920_16 (cores VARCHAR, speed__ghz_ VARCHAR)
### Question:
How many entries have a speed of exactly 2.53 GHz?
### Answer:
SELECT COUNT(cores) FROM table_269920_16 WHERE speed__ghz_ = "2.53"