* Q1 revenue $802 million vs Street view $825.6 million
* Adjusted EPS $0.29
* Stock price falls after report
SAN FRANCISCO, May 26 (Reuters) - Marvell Technology Group (MRVL.O) posted first-quarter revenue of $802 million, down 6 percent and below expectations as a key smartphone chip customer struggles to compete against Apple (AAPL.O).
Marvell's first-quarter profit was $147 million or 22 cents a share, compared with $206 million, or 30 cents a share, a year earlier. Adjusted net profit was 29 cents a share.
Analysts on average expected Marvell, whose processors are used in Research In Motion's RIM.TO BlackBerry smartphones, to report first-quarter revenue of $825.6 million, according to Thomson Reuters I/B/E/S.
Shares of Marvell fell 2.4 percent to $14.21 in extended trading after the earnings report. The stock closed up 2.68 percent on the Nasdaq. (Reporting by Noel Randewich. Editing by Robert MacMillan)