Brazos is the name of the current family of AMD APUs. The Brazos family currently includes two sub-familes: Ontario and Zaccate. In short, Zaccate is more powerful than Ontario, just look at the TDP: 18W for Zaccate and 9W for Ontario. The Eee PC 1215B tested in this review features an AMD Fusion C-50 APU (Ontario family –the Zaccate family including the Fusion E-350 APU). The Fusion C-50 APU of ASUS Eee PC 1215B combines an AMD C-50 CPU (clocked at 1000MHz) (dual-core CPU) and a Radeon HD 6250 GPU (Direct3D 11 GPU) on the same piece of silicon.