CREATE TABLE table_28156 ("Graphics" TEXT, "Launch" FLOAT, "Market" TEXT, "CPU" TEXT, "Code name" TEXT, "Device ID" FLOAT, "Core clock  (  MHz  ) " TEXT, "Execution units" FLOAT, "Shader model" TEXT, "DirectX" TEXT, "OpenGL" TEXT, "OpenCL" TEXT, "Memory bandwidth  (  GB/s  ) " TEXT, "DVMT  (  MB  ) " FLOAT, "CVT HD" TEXT, "QSV" TEXT)

How many opengl have the ironlake ( clarkdale ) code name?
SELECT COUNT("OpenGL") FROM table_28156 WHERE "Code name" = 'Ironlake ( Clarkdale )'
SELECT COUNT("OpenGL") FROM "table_28156" WHERE "Code name" = 'Ironlake ( Clarkdale )'