Rambus (RMBS) reported Q4 earnings late Monday of $0.58 per diluted share, compared with $0.53 a year earlier.
Four analysts polled by FactSet expected $0.47.
Revenue during the quarter ended Dec. 31 was $161.1 million, compared with $122.2 million a year earlier.
Analysts polled by FactSet expected $160.3 million.