In terms of MPUs Microchip offers two main families SAM9 which can reach 400MHz and SAMA5 which can reach 600MHz (945 DMIPS). As you push the boundaries of performance and power, you want your underlying design technology to be easy to use and secure.
Microchip 32-bit microprocessors offer that balance in a rich set of peripherals and user interfaces. They deliver high-performance, market-leading low power, and advanced security for cost-sensitive industrial and consumer applications. The devices come with free Linux and third-party tools and software.
32-bit MPU ⇒ Quick Brochure