• Raspberry Pi Compute Module Upgrade: The Raspberry Pi Compute Module is getting a major upgrade with the same processor as the recently released Raspberry Pi 3. It was first released in April 2014 with the same CPU as the first-generation Raspberry Pi. The upgraded Compute Module 3 has 1GB of RAM and a Broadcom BCM2837 processor that can run at up to 1.2GHz, providing twice the RAM and roughly ten times the CPU performance of the original.
• Applications: The flagship Raspberry Pi can be a general-purpose computer for hobbyist projects, while the Compute Module's stripped-down form factor makes it more suitable for embedded computing as it fits into a standard SODIMM connector. It is being used by NEC in displays for digital signs, streaming, and presentations. The new Compute Module can run Windows IoT Core and supports Linux.
• Storage Options: One issue with the original Compute Module 1 was the fixed 4GB of eMMC flash storage. To solve this, two versions of the Compute Module 3 are released: one with 4GB eMMC on-board and a "Lite" model that requires the user to add their own SD card socket or eMMC flash.
• Core and I/O Boards: The core module is tiny to fit into other hardware. For development purposes, there is a separate I/O board with GPIO, USB, MicroUSB, CSI and DSI ports, HDMI, and MicroSD.
• Prices and Availability: The Compute Module 3 costs $30 and the lite version costs $25 (£27 and £22). Availability seems limited as the standalone Compute Module was out of stock at Element14 today, but the lite module and a $200 development kit including both boards and the separate I/O board were available. The I/O board is also sold separately by RS Components for £96 ($116).
• Compatibility: In most cases, the new Compute Module can replace the original in embedded projects as the form factor is nearly identical. However, the CM3 is 1mm taller and the CPU can pull more current and generate more heat under heavy load.