CREATE TABLE table_3690 ("Model" CLOB, "Speed  ( GHz ) " CLOB, "L3 Cache  ( MB ) " FLOAT, "QPI speed  ( GT/s ) " CLOB, "DDR3 Clock  ( MHz ) " FLOAT, "TDP  ( W ) " FLOAT, "Cores" FLOAT, "Threads" FLOAT, "Turbo-Boost" CLOB)

What is the speed of model x5560?
SELECT "Speed (GHz)" FROM table_3690 WHERE "Model" = 'X5560'
SELECT "Speed (GHz)" FROM "table_3690" WHERE "Model" = 'X5560'