CREATE TABLE table_3692 ("Model" TEXT, "Speed  ( GHz ) " TEXT, "L3 Cache  ( MB ) " FLOAT, "QPI speed  ( GT/s ) " TEXT, "DDR3 Clock  ( MHz ) " FLOAT, "TDP  ( W ) " FLOAT, "Cores" FLOAT, "Threads" FLOAT, "Turbo-Boost" TEXT)

How many models numbered L5506 have a QPI speed?
SELECT COUNT("QPI speed (GT/s)") FROM table_3692 WHERE "Model" = 'L5506'
SELECT COUNT("QPI speed (GT/s)") FROM "table_3692" WHERE "Model" = 'L5506'