For some OEMs (including Dell and Acer), the M690 series chipset was going to replace the Radeon Xpress 1150 (codenamed RS485M) on the mobile platform, and desktop variants of the 690 chipset were announced in February 2007.
For certain OEMs (including Dell and Acer), the M690 series chipset was intended to replace the Radeon Xpress 1150 (codenamed RS485M) on mobile platforms, while desktop versions of the 690 chipset were introduced in February 2007.