The Latest model from the Raspberry Pi Foundation, the Raspberry Pi 4 has up to 4GB RAM, a faster quad-core CPU, support for dual displays at up to 4K resolution, Gigabit Ethernet, USB3.0, wireless LAN, Bluetooth 5.0, and USB-C power. That's desktop PC performance!. 

Features

1.5GHz 64-bit quad-core ARM Cortex-A72 CPU ( ARM v8, BCM2837)

1GB, 2GB or 4GB RAM (LPDDR4)

On-board wireless LAN - dual-band 802.11 b/g/n/ac

On-board Bluetooth 5.0, low-energy (BLE)

2x USB 3.0 ports, 2x USB 2.0 ports

Gigabit ethernet

Power-over-Ethernet  (requires additional Raspberry Pi PoE HAT )

40-pin GPIO header

2× micro-HDMI ports (up to 4Kp60 supported)

H.265 (4Kp60 decode)

H.264 (1080p60 decode, 1080p30 encode)

OpenGL ES, 3.0 graphics

DSI display port, CSI camera port

Combined 3.5mm analog audio and composite video jack

Micro-SD card slot

USB-C power

As always with new Raspberry Pi models, you'll need the latest version of NOOBS or Raspbian to run on your Raspberry Pi 4. This can be downloaded from Raspberry Pi themselves at the below link:-

https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up

Desktop-level Performance

The faster 1.5GHz 64-bit quad-core CPU on the Raspberry Pi 4's Cortex A72 SoC, coupled with the up to 4GB LPDDR4 RAM give performance comparable to entry-level x86 desktop PCs. You'll see significantly faster boot speeds, and much better performance for CPU-heavy tasks like emulation and media centre usage; much snappier all round!

The Raspberry Pi 4 moves to USB-C power meaning that you'll need a new USB-C power supply that can supply 5V at 3A. We've got a whole range of power supply options

Significantly faster IO

The Raspberry Pi 4 has two USB 3.0 ports, for up to 10x faster transfer speeds than USB 2.0, perfect for connecting fast peripherals like SSDs and flash drives. There are also two USB 2.0 ports for connecting less speed-dependent peripherals like keyboards and mice.

The ethernet jack on the Raspberry Pi 4 moves to true gigabit speed, for super-speedy wired networking and, as with the Raspberry Pi 3 B+, there's Power-over-Ethernet capability too (requires additional Raspberry Pi PoE HAT ).

4K display support, dual micro-HDMI

There are dual micro-HDMI ports that support up to 4Kp60, to use your Raspberry Pi 4 with much larger displays with crisp, sharp, high resolution. Use the H.265 4Kp60 hardware decoding to watch 4K movies in your favourite media centre distro.

For the first time, you'll be able to use dual HDMI displays with the Raspberry Pi. This is great for working on a bunch of different tasks at the same time without having to work in tiny windows.

If you need a micro-HDMI adapter to use your existing HDMI cable with the Raspberry Pi 4 then we've got you covered !

Bluetooth 5.0 and wireless LAN

The shift to Bluetooth 5.0 (from 4.2 on the Raspberry Pi 3 B+) means you'll get twice the speed (2 Mbit/s) and four times the range (50m outdoors, 10m indoors) that you did with the previous generation. You'll get better power efficiency compared with Bluetooth 4.2 also.

There's dual-band 802.11 b/g/n/ac wireless LAN, like the previous generation Raspberry Pi, for quick wireless networking with less interference and better reception.