CREATE TABLE table_73605 ("Code name" TEXT, "Brand name" TEXT, "Model  ( list ) " TEXT, "Frequency" TEXT, "Cores/Threads" TEXT, "Max Memory Speed" TEXT)

What brand is model I7-8xx?
SELECT "Brand name" FROM table_73605 WHERE "Model (list)" = 'i7-8xx'
SELECT "Brand name" FROM "table_73605" WHERE "Model (list)" = 'i7-8xx'