The Raspberry PI 4 model B is the latest version available.
The specifications for the Raspberry PI 4 model B are as follows:
- A Broadcom BCM2711, quad core Cortex-A72 (ARM V8) 64-bit SOC 1.5 ghz processor
- 2gb, 4gb or 8gb LPDDR4-3200 SD-RAM
- 2.4 ghz and 5 ghz ieee 802.11ac wireless, bluetooth 5.0, BLE
- Gigabit ethernet
- 2 USB 3.0 ports, 2 USB 2.0 ports
- Raspberry PI standard 40 pin GPIO header
- 2 x micro-hdmi ports
- 2 lane MIPI DSI display port
- 2 lane MIPI CSI camera port
- 4-pole stereo audio and composite video port
- H.265 (4kp60 decode), H.264 (1080p60 decode, 1080p30 encode)
- OpenGL ES 3.0 graphics
- Micro-SD card slot for loading the operating system and data storage
- 5V DC via USB-connector (minimum 3A)
- 5V DC via GPIO header (minimum 3A)
- Power over ethernet enabled
- Operating temperature (0 to 50 degrees centigrade)
(All information provided by https://www.raspberrypi.org/products/raspberry-pi-4-model-b/specifications/)
The Raspberry PI 4 comes with all of the above as standard and the only decision you need to make is whether to go for 2 gigabytes, 4 gigabytes or 8 gigabytes of RAM.
For usage as a desktop computer I currently recommend going for 4 gb of RAM. The 2 gb will limit your enjoyment of using the Raspberry PI and the 8 gb currently provides limited benefits over the 4 gb version.
The 8gb version will become a much more useful device when there are more 64-bit operating systems available for use with the Raspberry PI. Most of the operating systems that are available for the Raspberry PI at the moment are still 32-bit.
You can get a 64-bit version of the Raspberry PI operating system but there is a limited amount of software available and therefore I recommend sticking with the 32-bit operating systems for the time being.
As you are going to be using a 32-bit operating system you may as well stick with 4 gb of RAM as that is all that can be consumed by a 32-bit operating system.
For most of the tutorials on this site I will be using either the Raspberry PI 4 with 4gb of RAM although there will be tutorials for the Raspberry PI 3 and Raspberry PI Zero as well.
|Raspberry PI 4B||2 gb||£34|
|Raspberry PI 4B||4 gb||£54|
|Raspberry PI 4B||8gb||£74|