Question: Clock rate (MHz) smaller than 400, and a Bandwidth (MB/s) of 1420 has what channels?
SQL: SELECT "Channels" FROM "2-142573-1" WHERE "Clock rate (MHz)" < 400.0 AND "Bandwidth (MB/s)" = 1420.0;

Question: Bandwidth (MB/s) smaller than 4800, and a Bus width (bits) smaller than 16 has what highest Clock rate (MHz)?
SQL: SELECT MAX("Clock rate (MHz)") FROM "2-142573-1" WHERE "Bandwidth (MB/s)" < 4800.0 AND "Bus width (bits)" < 16.0;

Question: Designation of PC800 has which highest Bus width (bits)?
SQL: SELECT MAX("Bus width (bits)") FROM "2-142573-1" WHERE "Designation" = 'PC800';