CREATE TABLE table_7401 ("Model number" TEXT, "Frequency" TEXT, "L2 cache" TEXT, "Multi 1" TEXT, "Voltage" TEXT, "Socket" TEXT, "Release date" TEXT, "Order part number" TEXT)

What kind of Voltage has a Frequency of 2000mhz, and a Release date in q3 2008?
SELECT "Voltage" FROM table_7401 WHERE "Frequency" = '2000mhz' AND "Release date" = 'q3 2008'
SELECT "Voltage" FROM "table_7401" WHERE "Frequency" = '2000mhz' AND "Release date" = 'q3 2008'