AMCC Showcases High Performance, Highly Versatile SATA RAID in Enterprise-Class Environments at LinuxWorld Expo.

SAN FRANCISCO -- Applied Micro Circuits Corporation (AMCC) (Nasdaq:AMCC), will demonstrate its industry-leading 3ware(R) 9000 SATA RAID controllers in a series of enterprise-class network environments at LinuxWorld Expo in the Moscone Convention Center, booth 237, August 8 - 11.

The 3ware 9000 Series SATA RAID controllers deliver over 400 MB/sec performance with Linux Kernel 2.6.x(1) and the XFS File System. AMCC will run a series demonstrations designed to highlight performance, scalability, and reliability in a variety of internal and external RAID environments.

AMCC will spotlight RAID and clustered applications with an emphasis on performance, fault tolerance, and SATA's highly evolved capabilities within a demanding Linux network environment. AMCC will also feature a technology demonstration of its external Linux-based SATA RAID solution for the Apple platform. Featuring the company's award-winning Multi-lane connectors, the external technology demonstration can deploy up to 1.6 terabytes of hardware SATA RAID in a small footprint, desktop enclosure for high performance desktop applications, such as digital video capture, video editing, and digital imaging.

"SATA is really starting to spread its wings, and as a leader in SATA RAID performance and overall shipments, our demonstrations are designed to highlight its robustness in a variety of today's common and emerging applications," said Michael Joyce, director of marketing for AMCC Storage. "Storage is rapidly becoming a larger factor in the overall network equation. LinuxWorld Expo is an opportunity for AMCC to show its commitment to the Linux and IT communities by addressing their needs with highly effective, real word SATA RAID solutions."

"The stability of the Linux software platform combined with the cost effectiveness of SATA drives and AMCC's high performance 3ware controllers deliver one of the industry's most compelling and most viable storage SATA RAID solutions. Our customers appreciate AMCC's strive for performance to meet the escalating demand for value-driven RAID in the enterprise-level Linux market," said Mr. Tim Lee, CEO of Pogo Linux. Pogo Linux is also exhibiting at LinuxWorld Expo in booth number 338.

AMCC 3ware 9000 Series SATA RAID controllers are built on StorSwitch(TM), the company's innovative switched RAID architecture for scalable performance. The 3ware 9000 Series provides scaleable capacity of up to 4.8 TB per controller, using 400 GB drives, and total system capacity limited only to available PCI slots. Advanced RAID features such as online-capacity-expansion, RAID level migration and multi-LUN support provide high levels of data protection, availability, and reliability. AMCC's advanced hardware RAID architecture enhances overall system performance and features both an on-board processor and an integrated RAID ASIC that offloads RAID controller functions from the host CPU, which allows the server to focus on its core applications.

AMCC also offers internal SATA controllers that feature Multi-lane Internal (MI) connectors for high capacity industrial environments. This groundbreaking design increases reliability and simplifies installation and routing via an innovative cabling solution for large-scale configurations. They include a highly reliable, locking cable/connector system that integrates 4 SATA ports into one on the controller side. 4-port configurations feature a single integrated connector, 12-port configurations feature 3 integrated connectors, and an 8-port configuration offers 2 integrated connectors.

AMCC has also published a white paper for Linux system administrators and AMCC storage customers who are seeking to tune or benchmark their systems to work with 3ware 9000 controllers. The white paper is available now at www.3ware.com.

AMCC Overview

AMCC provides the essential building blocks for the processing, moving and storing of information worldwide. The company blends systems and software expertise with high-performance, high-bandwidth silicon integration to deliver silicon, hardware and software solutions for global wide area networks (WAN), embedded applications such as PowerPC and programmable SOC architectures, storage area networks (SAN), and high-growth storage markets such as SATA RAID. AMCC's corporate headquarters are located in San Diego, California. Sales and engineering offices are located throughout the world. For further information regarding AMCC, please visit our web site at www.amcc.com.

Forward Looking Statements

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. 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 would 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 for the year ended March 31, 2005, and in other filings of the Company with the Securities and Exchange Commission. 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 news release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement.

(1) Tested using the Boniee++ benchmark on a dual processor Intel Xeon (2.4GHz) system with 512MB RAM running Red Hat 9 on a 2.6.5 Kernel with 3ware SATA RAID controllers and 12, 70 GB WDC WD740GD-00FLA0 drives in RAID 5 hardware configuration.