Sun Microsystems Tops IBM With 14th World-Record Performance Result for Sun Fire Systems Running UltraSPARC IV+ Processors

Sun Microsystems, Inc. (Nasdaq: SUNW) today announced that the industry-leading Sun Fire(TM) E25K server running UltraSPARC (R) IV+ processors and Solaris (TM) 10 Operating System, the most advanced operating system on the planet, achieved world record performance (1) of over 1.16 million business operations per second on the SPEC Java Business benchmark (SPECjbb2005) and beat competitors that include IBM and Fujitsu, among others. The latest in a series of leading performance records, testing results were conducted on the Java(TM) Platform, Standard Edition 5.0_06 with Java HotSpot (TM) Virtual Machine technology (2), the 14th world-record benchmark on the UltraSPARC IV+ processor-based platforms in just six months since launch.

Additionally, Sun continues to demonstrate superior price advantages with the Sun Fire E25K system priced 29 percent less than the Fujitsu PRIMEPOWER 2500 at a price tag of $5.8 million and 10 percent less than the IBM 64-way p5 595 with 512 GB DDR2 memory. (3)

The SPECjbb2005 benchmark is used to analyze a vendor's platform scalability when running Java applications. Both the Sun Fire E25K server result and the Fujitsu PRIMEPOWER 2500 result were obtained using Java HotSpot(TM) 32-Bit Server VM on Solaris, version 1.5.0_06, and running Solaris 10.

The SPECjbb Benchmark

SPECjbb2005 (Java Business Benchmark) measures the performance of a Java implemented application tier (server-side Java) based on the order processing in a wholesale supplier application. It also measures the performance of CPUs, caches, memory hierarchy and the scalability of shared memory processors (SMPs). The metrics given are number of bops (Business Operations per Second) and bops/Java Virtual Machine.

About Sun Microsystems, Inc.

A singular vision -- "The Network Is The Computer" -- guides Sun in the development of technologies that power the world's most important markets. Sun's philosophy of sharing innovation and building communities is at the forefront of the next wave of computing: the Participation Age. Sun can be found in more than 100 countries and on the Web at http://sun.com .

NOTE: Sun, Sun Microsystems, the Sun Logo, Solaris, Java, Sun Fire, Java HotSpot and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the United States and other countries. Products bearing SPARC trademarks are based upon an architecture developed by Sun Microsystems, Inc.

FOOTNOTES

1. SPECjbb2005 Sun Fire E25K (72-way, 72 chips, 144 cores) 1,164,995

SPECjbb2005 bops, 32,361 SPECjbb2005 bops/JVM submitted for review,

Fujitsu PRIMEPOWER 2500 (128 chips, 128 cores) 1,157,619 SPECjbb2005

bops, 72,351 SPECjbb2005 bops/JVM, SPECjbb reg tm of Standard

Performance Evaluation Corporation. Results as of 02/10/06 on

http://www.spec.org.

2. The terms "Java Virtual Machine" and "JVM" mean a Virtual Machine for

the Java platform.

3. Prices based on publicly documented price listings.

Media Contact:

Alex Plant

Sun Microsystems

650-786-3345

alex.plant@sun.com

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