The Raspberry Pi Foundation has released a new version of its flagship model, the Raspberry Pi 4 Model B with 8 GB Ram. In addition to the models that come with 2GB and 4GB of RAM, there’s a new 8GB RAM model.As always, you get a single-board computer that is the size of a deck of cards. It has an ARM-based CPU, many ports, Wi-Fi, Bluetooth and a big community of computer enthusiasts. You’ll be able to run applications that require more RAM, whether you use the Raspberry Pi to run a server or as a desktop computer.
What else has changed?
To supply the slightly higher peak currents required by the new memory package, they have shuffled the power supply components on the board, removing a switch-mode power supply from the right-hand side of the board next to the USB 2.0 sockets and adding a new switcher next to the USB-C power connector. While this was a necessary change for this upgrade.
The fanless, energy-efficient Raspberry Pi runs silently and uses far less power than other computers
Raspberry Pi 4 comes with Gigabit Ethernet, along with onboard wireless networking and Bluetooth.
Your new Raspberry Pi 4 has upgraded USB capacity: along with two USB 2 ports you’ll find two USB 3 ports, which can transfer data up to ten times faster.
Your choice of RAM
We’re making different variants of the Raspberry Pi 4 available, depending on how much RAM you need — 1GB, 2GB, 4GB, or 8GB.
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This is the Broadcom chip used in the Raspberry Pi 4 Model B, the Raspberry Pi 400, and the Raspberry Pi Compute Module 4. The architecture of the BCM2711 is a considerable upgrade on that used by the SoCs in earlier Raspberry Pi models. It continues the quad-core CPU design of the BCM2837, but uses the more powerful ARM A72 core. It has a greatly improved GPU feature set with much faster input/output, due to the incorporation of a PCIe link that connects the USB 2 and USB 3 ports, and a natively attached Ethernet controller. It is also capable of addressing more memory than the SoCs used before.
The ARM cores are capable of running at up to 1.5 GHz, making the Raspberry Pi 4 about 50% faster than the Raspberry Pi 3B+. The new VideoCore VI 3D unit now runs at up to 500 MHz. The ARM cores are 64-bit, and while the VideoCore is 32-bit, there is a new Memory Management Unit, which means it can access more memory than previous versions.
The BCM2711 chip continues to use the heat spreading technology started with the BCM2837B0, which provides better thermal management.
Processor: Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5 GHz.
Memory: Accesses up to 8GB LPDDR4-2400 SDRAM (depending on model)
Caches: 32kB data + 48kB instruction L1 cache per core. 1MB L2 cache.
Key Features and Specifications of Raspberry Pi 4 Moedl B with 8GB RAM:
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.
Enhanced Ethernet Connectivity:-
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!
Install Raspberry Pi OS using Raspberry Pi Imager
Raspberry Pi Imager is the quick and easy way to install Raspberry Pi OS and other operating systems to a microSD card, ready to use with your Raspberry Pi. Watch our 45-second video to learn how to install an operating system using Raspberry Pi Imager.
Download and install Raspberry Pi Imager to a computer with an SD card reader. Put the SD card you’ll use with your Raspberry Pi into the reader and run Raspberry Pi Imager.
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