Raspberry Pi 4
Raspberry Pi 4 Overview:
Raspberry Pi 4 is the 4th generation single-board computer in the Raspberry Pi series, released on 24 June 2019 with significant upgrades over its predecessor. It features the Broadcom BCM2711 SoC, two USB 3.0 ports, and varying RAM options. While it ended the $35 MSRP trend due to added costs for larger RAM capacities, the base 1GB model is still available for $35.
Raspberry Pi 4 Specifications:
The Raspberry Pi 4 is equipped with a quad-core ARM Cortex-A72 CPU clocked at either 1.5GHz or 1.8GHz, and a Broadcom BCM2711 SoC with VideoCore VI GPU. It offers RAM options of 1GB, 2GB, 4GB, or 8GB of 3200MHz LPDDR4. The device also boasts upgraded USB bandwidth, gigabit ethernet, dual micro-HDMI connectors, and Bluetooth 5.0, with a power connector changed from Micro-USB to USB-C.
Raspberry Pi Compute Module 4 and Raspberry Pi 400:
The Raspberry Pi Compute Module 4, released on 19 October 2020, targets embedded and industrial applications with RAM options of 1GB, 2GB, 4GB, and 8GB, along with optional eMMC storage. On the other hand, the Raspberry Pi 400, launched on 2 November 2020, is essentially a Raspberry Pi 4 with 4GB of RAM in a keyboard form factor, designed for desktop PC use and available standalone for $70 or as part of a desktop kit for $100.