<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>u99676exv99w1.txt
<DESCRIPTION>EX-99.1 PRESS RELEASE
<TEXT>
<PAGE>


Exhibit 99.1


                         GIGAMEDIA UPDATES GUIDANCE FOR
                        FOURTH QUARTER AND FULL YEAR 2004


          o    EXPECTS PROFITABLE FOURTH QUARTER
          o    EXPECTS PROFITABLE FULL YEAR 2004


TAIPEI, Taiwan, April 13, 2005 - GigaMedia Limited ("GigaMedia" or the
"Company") (NASDAQ: GIGM) today updated guidance regarding the Company's
fourth-quarter and full-year 2004 consolidated financial results. The Company
reported that ongoing internal restructuring continues to make progress, and
that the Company expects to report a consolidated net profit for the fourth
quarter and for the full year 2004.

GigaMedia expects to announce fourth-quarter and full-year 2004 consolidated
financial results in mid-May, following completion of the Company's year-end
financial audit.


ABOUT GIGAMEDIA

GigaMedia Limited (Singapore registration number: 199905474H) is a diversified
provider of broadband and entertainment services, with headquarters in Taipei,
Taiwan. The Company operates Taiwan's two largest music store chains, Rose
Records and Tachung Records, through its subsidiary G-Music. The Company also
operates a major Taiwanese broadband ISP, providing Internet access service and
broadband content with multiple delivery technologies via its Web destination
http://www.gigigaga.com. GigaMedia's subsidiary KBT provides broadband services
to corporate subscribers in Taiwan. The Company also develops software for
online entertainment services, including the global online gaming market. More
information on GigaMedia can be obtained from http://ir.giga.net.tw.

The statements included above and elsewhere in this press release that are not
historical in nature are "forward-looking statements" within the meaning of the
"safe harbor" provisions of the Private Securities Litigation Reform Act of
1995. GigaMedia cautions readers that forward-looking statements are based on
the Company's current expectations and involve a number of risks and
uncertainties. Actual results may differ materially from those contained in such
forward-looking statements. Information as to certain factors that could cause
actual results to vary can be found in GigaMedia's Annual Report on Form 20-F
filed with the United States Securities and Exchange Commission in June 2004.


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