Multiprocessor Performance Benefits of AMD Opteron(TM) Recognized with Long-Term Commitments by Developers of World's 500 Highest-Performing Systems

Number of AMD Opteron Processor-Based Systems Increases from 55 to 81
on Top500 Supercomputing List

At the 21st International Supercomputer Conference today, AMD
(NYSE: AMD) announced that several AMD Opteron(TM) processor-based
systems are listed among the world's highest-performing
supercomputers, as determined by the TOP500 Organization
(www.top500.org). The AMD Opteron processor, via its Direct Connect
Architecture featuring HyperTransport(TM) technology, delivers
superior performance and scalability for cluster and multiprocessor
computing in commercial and research environments. These performance
advantages are leading to increased market penetration across all
sectors of the worldwide server market during the last three years,
including such industries as financial services, energy, and digital
media, as well as university and government installations.
"Supercomputer developers were among the first to embrace the AMD
Opteron processor," said Marty Seyer, senior vice president,
Commercial Segment, AMD. "Since that time, traditional enterprise
datacenters, facing the same rigorous performance, value, power and
cooling requirements, are increasingly choosing AMD Opteron
processor-based systems. We are demonstrating that AMD64 is the
innovation platform for the future, through our planned quad-core
processor roadmap, and our recently announced Torrenza program which
allows for the development of special purpose accelerators that will
take computing potential to the next level."
In a recent supercomputing win, AMD Opteron processors were
selected for a multi-year contract that Cray, Inc. signed with Oak
Ridge National Laboratory (ORNL) to provide the world's first
petaflops-speed (1,000 trillion floating-point operations per second)
supercomputer. The total contract calls for progressive upgrades to
ORNL's existing Cray XT3(TM) supercomputer, starting with
Next-Generation AMD Opteron processors with DDR2 memory later this
year, followed by upgrades to the use of quad-core AMD Opteron
processors, which will be socket compatible. These upgrades will
accelerate peak speed to 250 teraflops (250 trillion floating-point
operations per second), planned in late 2007. ORNL is then expected to
install a next-generation Cray supercomputer in late 2008. This
system, currently code-named 'Baker,' is designed to deliver peak
performance of one petaflops, making it roughly three times faster
than any existing computer in the world. All systems provided for in
the contract will utilize current and future versions of the AMD
Opteron processor.
"Cray is continuing its long-term commitment to building our
next-generation platforms on AMD64 technology," said Cray president
and CEO Peter Ungaro. "All Cray supercomputers are designed to
accommodate future higher density multi-core processors in order to
leverage and protect our customers' investment in these systems. The
recently announced upgrades to ORNL's Cray XT3 supercomputer will
ensure ORNL is operating on the most advanced platform to serve their
computing needs well into the future."
The world's largest AMD Opteron processor-based supercomputer
ranked seventh on the Top500 list. The Tokyo Institute of Technology's
TSUBAME supercomputer uses Sun Microsystems Sun Fire(TM) servers
powered by more than 10,000 AMD Opteron processor cores. In
provisional tests in May 2006, TSUBAME achieved a sustained
performance of 38.18 teraflops.
Satoshi Matsuoka, professor in charge of computing infrastructure
at the Global Scientific Information and Computing Center, Tokyo
Institute of Technology, said: "I am strongly aware that one reason
why TSUBAME now ranks as seventh on the Top 500 list is the robust,
advanced processing performance of AMD Opteron. The Tokyo Institute of
Technology intends to construct future Japanese supercomputers in the
petaflop-speed class. Accordingly, we plan to proactively consider and
utilize a range of cutting edge technologies, and specifically AMD
processors."
Earlier this month, the High Performance Computing Center (HLRS)
at the University of Stuttgart installed a visualization cluster
manufactured by DALCO AG, using AMD Opteron processors running
software enhanced by Microsoft's Windows(R) Compute Cluster Server
2003.
"Our high performance visualization cluster at HLRS - the high
performance computing department of the University of Stuttgart - is
based on AMD Opteron technology because it best fulfilled the
University's requirements," said Christian Dallmann, CEO of Swiss
DALCO AG. "The demand for high-end graphics in combination with the
outstanding compute power of the AMD Opteron processor gave us full
flexibility to fulfill our demanding goal to provide superior
visualization services to the prestigious automotive industry in the
Stuttgart area."
Said John Borozan, group product manager, Windows Server Division
at Microsoft Corp: "Windows Compute Cluster Server 2003 helps power
and improve the parallel rendering capabilities of the visualization
software used by HLRS. High performance computing environments are
among the most demanding, and the AMD Opteron processor ensures that
software operates to its full potential."
Finally, AMD Opteron processors will be featured in a recently
announced supercomputer planned by Lawrence Livermore National
Laboratory (LLNL).
Appro, a leading provider of high performance enterprise computing
servers, storage and high-end workstations, announced this week that,
in conjunction with Voltaire, a worldwide leader in grid backbone
solutions, it will provide more than 16,000 Next-Generation AMD
Opteron processors with DDR2 memory to LLNL. The three will work
together on LLNL's Peloton Supercomputing Project, a high performance
computing environment to be used by 8,000 LLNL scientists and
engineers.
"We are extremely pleased to work with AMD to deliver LLNL one of
the world's largest, highest performing clustered supercomputers,"
said Daniel Kim, Chief Executive Officer, Appro. "Using
Next-Generation AMD Opteron processors with DDR2 memory for Appro 1U
Quad XtremeServer Clusters ensures we have the processor that will
deliver industry-leading price/performance and performance-per-watt,
which helps this research to be conducted as efficiently, rapidly and
cost-effectively as possible. Additionally, AMD offers critical
investment protection via a seamless migration path. When more
computing power is required, a quad-core upgrade can be implemented
versus buying an entirely new, expensive system."
According to Mercury Research, AMD's first quarter x86 server
market share represents 22.1 percent, a 26 percent increase over AMD's
share in the fourth quarter of 2005 and a 254 percent increase over
the first quarter of 2005.

Cautionary Statement

This release contains forward-looking statements, which are made
pursuant to the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995. Investors are cautioned that
forward-looking statements in this release involve risks and
uncertainties that could cause actual results to differ materially
from the company's current expectations. Risks include the possibility
that the company may not achieve its planned product and technology
introduction schedules; that solutions providers will not provide the
infrastructure to support the company's planned products and
technology in a timely fashion or that the adoption of AMD64-based
infrastructure technologies by OEMs will not occur as expected.
We urge investors to review in detail the risks and uncertainties
in the company's Securities and Exchange Commission filings, including
but not limited to the Annual Report on Form 10-K for the year ended
December 25, 2005 and the Quarterly Report on Form 10-Q for the
quarter ended March 26, 2006.

About AMD

Advanced Micro Devices (NYSE: AMD) is a leading global provider of
innovative microprocessor solutions for computing, communications and
consumer electronics markets. Founded in 1969, AMD is dedicated to
delivering superior computing solutions based on customer needs that
empower users worldwide. For more information visit www.amd.com.

(C) 2006 Advanced Micro Devices, Inc. AMD, the AMD Arrow logo, AMD
Opteron, and combinations thereof, are trademarks of Advanced Micro
Devices, Inc. HyperTransport is a licensed trademark of the
Hypertransport Advanced Technology Consortium. Sun, Sun Microsystems,
and Sun Fire are trademarks or registered trademarks of Sun
Microsystems, Inc. in the United States and other countries. Other
product and company names are for informational purposes only and may
be trademarks of their respective companies.