3DFX BROADENS COMMITMENT TO MACINTOSH MARKET

New Drivers Enable Macintosh Developers To Deliver Applications for

Voodoo3-Based Graphics Boards

SAN JOSE, Calif., - August 5, 1999 - 3dfx Interactive Inc. (NASDAQ: TDFX)
today announced that it has broadened its commitment to the Apple
Macintosh market with the release of new Voodoo3(tm) developer drivers,
available today at
((http://www.3dfx.com/view.asp?IOID=306)http://www.3dfx.com/view.asp?IOID=30
6). The new drivers will enable leading game developers to create Macintosh
versions of their best-selling Windows PC games and harness the power of
Voodoo3-based graphics cards for the Mac.

3dfx also announced that Mactell Corporation (OTC BB: MTLL) and other
leading Mac market board makers have licensed the award-winning Voodoo3
graphics accelerator chips for use in new Macintosh graphics boards. The
boards are expected to be available later this year, and will deliver the
fastest 3D graphics ever available for the Macintosh platform.

"Voodoo3 products have been very successful on Windows PCs, and today's
announcement extends the reach of this powerful graphics technology to
millions of Macintosh systems worldwide," said Bryan Speece, director of
marketing, Macintosh business development at 3dfx. "These new drivers are
part of our larger, strategic effort to broaden the market for our hundreds
of 3dfx developers, to grow the presence of our Glide API, and to attract
more cutting-edge 3D titles to the Mac platform."

"By building graphics cards based on 3dfx Voodoo3 technology, we plan to
provide Mac users with the truly immersive, realistic experience for which
3dfx is known worldwide," said Roy Stocker, president of Mactell
Corporation. "We expect these boards to be extremely popular among the
growing legions of Mac gamers and consumers."

3dfx Voodoo3 boards are the hottest-selling video cards in retail stores
throughout North America, according to market research firm PC Data.
Currently available for Windows PCs, Voodoo3 products are also available in
popular PC systems from Compaq, Dell, Gateway, Quantex, NEC Direct, Packard
Bell, and others.

More than 500 software titles are available for 3dfx graphics accelerator
products, with more than 200 titles written for the Glide API. The Glide
API was developed by 3dfx Interactive to provide a simple and fast method
for developers to write 3D game titles and software specifically to run on
3dfx accelerators.

About 3dfx Interactive
3dfx Interactive is leading the 3D multimedia revolution in personal
computers and consumer products. With its patented and award-wining
graphics accelerator chips, boards and software, 3dfx provides the
technology to create high-impact visual experiences. The company is
recognized worldwide for its ability to bring the world's finest games,
educational content, interactive entertainment, and media-rich business
applications to life. 3dfx products are available through leading PC makers
including Dell and Gateway, and in retail stores worldwide. 3dfx
Interactive has headquarters in San Jose, Calif., and engineering and
manufacturing facilities in Richardson, Texas, and Juarez, Mexico. 3dfx
Interactive (NASDAQ: TDFX) is available on the Web at
(http://www.3dfx.com)http://www.3dfx.com.