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_269920_17 (l3_cache__mb_ INTEGER, model VARCHAR, qpi_speed__gt_s_ VARCHAR, speed__ghz_ VARCHAR)

### Question ###
What is the maximum L3 cache of the processor whose speed is 2.00 GHZ, has a QPI speed of 4.8 gt/s, and is model e5504?

### Accurate SQL ###

SELECT MAX(l3_cache__mb_) FROM table_269920_17 WHERE qpi_speed__gt_s_ = "4.8" AND speed__ghz_ = "2.00" AND model = "E5504"