CREATE TABLE table_49715 ("Model number" TEXT, "Frequency" TEXT, "L2 cache" TEXT, "Mult." TEXT, "Voltage" TEXT, "Socket" TEXT)

What is Model Number, when Voltage is 2.0V, and when Frequency is 350 mhz?
SELECT "Model number" FROM table_49715 WHERE "Voltage" = '2.0v' AND "Frequency" = '350 mhz'
SELECT "Model number" FROM "table_49715" WHERE "Frequency" = '350 mhz' AND "Voltage" = '2.0v'