The apm driver uses the XAA (XFree86 Acceleration Architecture) in the SVGA server. It has support for the following acceleration:
All in 8, 16 and 32 bpp modes. In 24bpp mode only Bitblts and Filled rectangles is supported. Also VESA DPMS power save mode is fully supported with "standby", "suspend" and "off" modes (set with with the "xset dpms" command).