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The Raspberry Pi Foundation has launched an upgraded version of its flagship model, the Raspberry Pi 4 Model B, now featuring 8 GB of RAM. In addition to the existing 2GB and 4GB RAM options, this new 8GB variant has been introduced.
As always, you receive a compact single-board computer about the size of a deck of cards. It includes an ARM-based CPU, multiple ports, Wi-Fi, Bluetooth, and a large community of computer enthusiasts. With this increase in RAM, you can run applications that demand more memory, whether using the Raspberry Pi as a server or a desktop computer.
Aside from the RAM upgrade, all other hardware components remain unchanged in this new release.
What else has been updated?
To accommodate the slightly higher peak currents needed for the new memory package, the power supply components on the board have been rearranged. A switch-mode power supply has been removed from the right side of the board near the USB 2.0 ports, and a new switcher has been added next to the USB-C power connector. This adjustment was essential for this upgrade.
With one of latest Broadcom 2711; Quad-Core Cortex A72 (ARM V8-A) 64-bit SoC Clocked at 1.5GHz processor improved power consumption; and thermals on the Pi 4+B means that the CPU on the BCM2837 SoC can now run at 1.5 GHz; a 20% increase on the previous Pi 3 model (which ran at 1.2GHz).
Video performance on Pi 4 B is upgraded with dual-display support at resolutions up to 4K via a pair of micro-HDMI ports; hardware video decode at up to 4Kp60 which supports H 265 Decode (4Kp60); H.264, and MPEG-4 decode (1080p60).
A significant change on the Pi 4 B compared to the previous Pi 3 models is the inclusion of a new faster; dual-band wireless chip with 802.11 b/g/n/ac wireless LAN.
The dual-band 2.4GHz and 5GHz wireless LAN enables faster networking with less interference and the new PCB antenna technology allow better reception.
Latest 5.0 Bluetooth allows you to use a wireless keyboard/trackpad with more range than before without extra dongles; keeping things nice and tidy.
The Pi 4 B has significantly faster-wired networking with USB 3.0 technology; thanks to an upgraded USB/LAN chip; and you should see speeds that are 10x faster than on previous models of the Pi.
The GPIO header remains the same, with 40 pins; fully backwards-compatible with previous boards as on the previous three models of Pi. However; it should note that the new PoE header pins may contact components on the underside of some HATs; like Rainbow HAT. Some standoffs will prevent any mischief from occurring though!
* Product Images are shown for illustrative purposes only and may differ from actual product.
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