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_3692 ( "Model" text, "Speed (GHz)" text, "L3 Cache (MB)" real, "QPI speed (GT/s)" text, "DDR3 Clock (MHz)" real, "TDP (W)" real, "Cores" real, "Threads" real, "Turbo-Boost" text )

### Question ###
How many models numbered L5506 have a QPI speed?

### Accurate SQL ###

SELECT COUNT("QPI speed (GT/s)") FROM table_3692 WHERE "Model" = 'L5506'