Unavailable as of current in the U.S. or Europe, the quietly-introduced new line of Celeron M, the 4xx series, is being sold in Japan. Sporting 1MB of L2 cache and a 533MHz FSB, the new Celerons are also based on the 65nm process and with the low clock speeds of 1.46Ghz, 1.60GHz and 1.73GHz will probably be very conservative on power demands. A faster 1.86GHz version is slated for later this year, and the U.S. release is just around the corner for the 410, 420 and 430.