CREATE TABLE table_19201 ("Designation" CLOB, "Bus width  ( bits ) " FLOAT, "Channels" CLOB, "Clock rate  ( MHz ) " FLOAT, "Bandwidth  ( MB/s ) " FLOAT)

Name the maximum clock rate mhz
SELECT MAX("Clock rate (MHz)") FROM table_19201
SELECT MAX("Clock rate (MHz)") FROM "table_19201"