AMCC PowerPC 460GTx Increases Performance and Bandwidth for Networking and Telecommunication Applications.

High-Performance CPU Core Coupled with High-Bandwidth Memory and High-Speed I/0 Subsystems Support Encryption/Decryption, Security, Gigabit Ethernet and Gen2 PCI Express

SUNNYVALE, Calif. -- Applied Micro Circuits Corporation (NASDAQ:AMCC), a global leader in embedded Power Architecture[TM] processing, optical transport, and storage solutions, announced the newest member of its embedded processor family, the PowerPC[R] 460GTx. Based on the Power Architecture standard, the PowerPC 460GTx processor combines a performance optimized PowerPC core with a high-bandwidth memory and I/O subsystem to support demanding embedded processing applications. Protecting the software investment customers made in AMCC's PowerPC 440 processor family, the PowerPC 460GTx provides a high- performance migration path for customers using the AMCC PowerPC 440GX and 460GT processors.

The PowerPC 460GTx offers advanced features including four Gigabit Ethernet ports with TCP/IP assist, 801.p- and q-compatible QoS, encryption/decryption engine, high-performance memory controller and high-speed I/O subsystem. The unique combination of high-performance features are designed to meet the demanding requirements of the networking, wireless infrastructure, and general purpose control applications.

"With high integration and speeds of up to 1.4GHz, the PowerPC 460GTx meets the needs of demanding networking applications," said Linley Gwennap, principal analyst of The Linley Group. "AMCC has accelerated its pace of product introductions, building a broad portfolio of Power Architecture processors."

The PowerPC 460GTx embedded processor features a PowerPC superscalar CPU core with clock frequencies ranging from 800MHz to 1.4GHz and performance of 2 DMIPS/MHz (2800DMIPS at 1.4GHz). The PowerPC 460GTx also contains a 512KB level 2 cache, DDR2-800 SDRAM controller, and a high-bandwidth, multichannel DMA controller. To support connectivity to the highest performance ASIC and FPGA devices, the 460GTx includes an 8-lane Gen 2 PCI Express interface, this interface can be bifurcated into two independent 4-lane Gen 2 PCI Express interfaces.

The 460GTx features two internal buses. The primary bus is a 128-bit two-way crossbar with simultaneous read/write operations from each bus segment supporting 12.8GBytes/s peak bandwidth. A secondary 128-bit bus with simultaneous read/write operation provides an additional 6.4GBytes/s for a combined total 19.2 GBytes/s of peak bandwidth. The bus topology enables concurrent read/write transactions between high speed I/Os, other peripherals, and memory.

"Customers are demanding high-performance, feature-rich processors with lower power consumption," said Sam Fuller, Vice President of Marketing for AMCC. "The new PowerPC 460GTx offers significant time to market advantages and maintains AMCC's embedded leadership position."

When it comes to managing power dissipation, the 460GTx follows the leadership path set by today's AMCC processor family. For example, the total typical power dissipation for the 460GTx with 8 lanes of PCI Express, DDR533 memory, and 833MHz processor is as low as 8 watts. At above 1GHz CPU and DDR800 memory the total typical power is less than 10 watts.

Samples and evaluation kits of the PowerPC 460GTx will be available in 4Q08. For more information on this and other AMCC's storage processors please contact your nearest AMCC sales office or visit: http://www.amcc.com/Embedded/.

About AMCC

AMCC provides leadership semiconductor solutions to process, transport, and store digital information for the world's wired and wireless networks. As a leading supplier of Power Architecture[TM] based processors and with world-class expertise in SONET and Ethernet protocol processing, PHY technology, storage processors and RAID controllers our products are the foundation of the IP Communications Revolution. AMCC's 3ware[R] SAS and SATA RAID controllers deliver cost-effective, high-performance, high-capacity storage for enterprises and consumers worldwide in applications like disk-to-disk backup, near-line storage, network-attached storage (NAS), video, and high-performance computing. For further information regarding AMCC, please visit our website at http://www.amcc.com.

Forward Looking Statements

This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by words such as expects, anticipates, plans, believes, estimates, will or words of similar meaning. Such forward-looking statements, including statements relating to the products discussed in this press release, are subject to a number of risks and uncertainties, including the risk that the products may not be successfully or timely developed, completed or manufactured or achieve market acceptance, risks relating to general economic conditions, as well as the risks and uncertainties set forth in the Company's Annual Report on Form 10-K, and in the Company's other SEC filings. As a result of these risks and uncertainties, actual results may differ materially from these forward-looking statements. The forward-looking statements contained in this press release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement, whether as a result of new information, future developments or otherwise.

AMCC is a registered trademark of APPLIED MICRO CIRCUITS CORPORATION. Power Architecture is a trademark licensed by Power.org. PowerPC is a registered trademark of IBM Corporation and used under license therefrom. All other trademarks are property of their respective owners.