Atom graphics is called GMA 3150
 

Intel is using a two+ years old, lame graphics core for its new Atom parts. The new Atom chipset is stepping up from ultra weak and old G945GC to a “better” G31 generation one.

The graphics inside new Atom D510 and D410 single core is called GMA 3150, which promises to be the slightly faster version of G31 based GMA 3100.

http://www.fudzilla.com/content/view/15984/34/