To start, the Pi 4 is now based on Broadcom’s new 28nm SoC, which incorporates a new and more powerful quad-core ARM Cortex-A72 CPU. The new processor is also slightly faster than its predecessor, running at 1.5GHz. The most important upgrade to the Pi 4, however, is that it supports LPDDR4 memory. To that end, the Pi 4 ships out in three memory variant – 1GB, 2GB, and 4GB.
The rest of the integrated hardware of the Pi 4 includes the usual microSD card storage, a full throughput Gigabit Ethernet port, support for Bluetooth 5.0, two USB-A 3.0 port, two USB-A 2.0 ports. Last but not least, dual HDMI 2.0d ports, allowing users to run a dual display system. Additionally, the board can also output at 4K resolution, as well as decode H.264 and H.265 videos. Which is a first for a Raspberry Pi board. The Raspberry Pi 4 is already available for purchase. Pricing for the hobbyist board starts from US$35 for the 1GB RAM variant, US$45 for the 2GB model, and US$55 for the 4GB variant. (Source: Raspberry Pi Foundation, AnandTech)
