Saaya the server BD will accomodate standard ddr3 1600 while desktop will actually suppor ddr3 1866 which in dual channel will provide over 29 gb/s bandwidth. Thats more than the tripple channel socket 1366 b/w of 25 gb/s while using its dd3 1066 officially suppported.

source: http://www.techpowerup.com/134739/AM...-Revealed.html