The earnings peak was driven by higher sales in the OEM and consumer categories, the company said.
Apple employs ATI processors in its iBooks, 15-inch and 17-inch PowerBooks, eMacs and some Power Mac G5s.
ATI's reported net income of $61.2 million, compared with $22.3 million in the year-ago quarter. Revenue soared 50 per cent in the quarter to $572.2 million from $380.7 million.
Notebook chip revenues climbed 20 per cent; desktop chip revenue rose 40 per cent and handset revenues also rose, the company said.
Full year net income hit $204.8 million on revenues of $2 billion.