The current Dothan core-based 90 nm Pentium M chip received its final speed upgrade before the introduction of the 65 nm generation in the first quarter of 2006. A new 2.26 GHz model carries the sequence number 780 and offers same features as the previous flagship 770, including 2 MByte L2 cache, a 533 MHz FSB and a thermal design power (TDP) of 27 watts.
Also new is the Pentium M 778, a low-voltage and less power-hungry (10 watts TDP) version clocked at 1.6 GHz, 2 MByte L2 cache and a 400 MHz FSB. The lower end of Intel's mobile product line was extended with a 90 nm Dothan-core Celeron 380, increasing clock speed to 1.60 GHz. The chip is equipped with 1 MByte L2 cache a 400 MHz FSB and is rated at a TDP of 21 watts.
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Tom's Hardware Guide