user: Question: Which Clock Speed has a FSB Speed of 400 MHz, and a Model Number of C7-M 794?
Columns: ['Model Number', 'Clock Speed', 'L2 Cache', 'FSB Speed', 'Clock Multiplier', 'Voltage Range', 'Socket', 'Release Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['C7-M 754', '1.5 GHz', '128 KB', '400 MHz', '15×', '1.004 V', 'Socket 479', 'June 1, 2005']
SQL:

assistant: SELECT "Clock Speed" FROM "Table" WHERE "FSB Speed" = '400 MHz' AND "Model Number" = 'C7-M 794';