Small DateTime vs DateTime

Small DateTime		DateTime
1	It Occupies 4 byte Size	It Occupies 8 byte Size
2	The precision of small datetime is one minute	The precision of datetime is 3.33 milli Seconds
3	It Stores Date From 1st January 1900 through 6th June 2079. Which is usually more than enough	It Stores Date From 1st January 1753 through 31st December 9999.