Eben Upton created the Raspberry Pi single board computer to help children learn about computer programming and inspire a new generation of engineering talent. Well, it mainly comes down to how much RAM you'd like.
For the first time, different SKUs with varying amounts of LPDDR4 RAM will be available, with the cheapest, 1GB variant going for just $35, a 2GB board for $45, and a 4GB product for $55. With a powerful quad-core ARM Cortex-A72 processor running at 1.5GHz, it is able to perform sophisticated local processing, reducing upstream bandwidth requirements, and helping to address privacy concerns in distributed machine-learning applications.
The result is a 2x to 4x performance increase "depending on the benchmark".
With the growing demand and crossover to 4K display screens, the Raspberry Pi 4 has tried to stay ahead by modifying its initial full-size HDMI port to two mini HDMI ports.
There's also the matter of the move of the ethernet port. Today, over 50% of our $35 Raspberry Pi units are destined for industrial and commercial use; Raspberry Pi 4 builds on this success, providing greatly increased performance at the same low cost.
The new board ships with Gigabit Ethernet along with onboard Bluetooth and wireless networking.
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You also get two micro-HDMI ports, which allow the Pi 4 to push 4K output at 60 frames per second to two monitors at once.
GPIO: Standard 40-pin GPIO header with full backward compatibility, and additional multiplexed UART, I2C and SPI peripherals.
The little Raspberry Pi 4 board packs a serious punch with bumped specs across the board.
Raspberry Pi 4 has two micro-HDMI ports, albeit in a micro HDMI format. Now the ethernet port is north, and the USB ports are south. There are instructions for how to modify an existing case or you can purchase new, two-part case for only $5.
What hasn't changed over the years, though, is a major drawback of the design: A communication infrastructure that sees the system-on-chip (SoC) of every Raspberry Pi communicating with external devices over a single 480Mb/s USB 2.0 channel. Other HATs and accessories should work fine. A budget set may include the new Raspberry Pi model, a case, power supply, and a microSD card. The foundation has also overhauled the Debian software with a new interface and support for Chromium 74. "It also eliminates roughly half of the lines of closed-source code in the platform".