The first Pi to be introduced - the credit card-sized board made an impression for being a usable Linux computer that cost just $35.

Specs

• Broadcom BCM2835 700MHz ARM1176JZFS processor with FPU and Videocore 4 GPU
• GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p3D
• H.264 high-profile decode GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure
• 256MB RAM (later upgraded to 512MB)
• Boots from SD card
• 10/100-BaseT Ethernet port
• HDMI port
• Two USB 2.0 port
• RCA video port
• SD card slot
• Powered from microUSB port
• 3.5mm audio out jack
• Header footprint for camera connection
• Size: 85.6 x 53.98 x 17mm

The lower specced variant of the Raspberry Pi - which sells for a cheaper price but has less memory, only one USB port and no Ethernet. Popular for use in embedded projects.

Specs

• Broadcom BCM2835 700MHz ARM1176JZFS processor with FPU and Videocore 4 GPU
• GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p3D
• H.264 high-profile decode GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure.
• 256MB RAM
• Boots from SD card
• HDMI port
• One USB 2.0 port
• RCA video port
• SD card slot
• Powered from microUSB port
• 3.5mm audio out jack
• Header footprint for camera connection
• Size: 85.6 x 53.98 x 17mm

The guts of a Raspberry Pi shrunk down to fit on a board the size of a memory module - aimed at those who want to create prototype electronics.

The compute board has the same ARM-based Broadcom 2835 chip as the Raspberry Pi 1 and 512MB of SDRAM, together with 4GB of eMMC flash storage. The module is a 200-pin board based on the Jedec SODIMM form factor.

A souped-up version of the original Raspberry Pi Model B board - adding more power, more USB ports, more general-purpose input/output pins to expand the board, a tidied-up layout and better audio.

Specs

Chip: Broadcom BCM2835 SoCCore architecture: ARM11CPU: 700 MHz Low Power ARM1176JZFS Applications Processor

GPU: Dual Core VideoCore IV® Multimedia Co-Processor. Provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode. Capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure.

Memory: 512MB SDRAM

Operating System: Boots from Micro SD card, running a version of the Linux operating system. A range of Linux-based OSes are available to download, including NOOBS, Raspbian, Pidora, OpenELEC, RaspBMC. Also available is Risc OS, a non-Linux distro.

Power: Micro USB socket 5V, 2A

Ethernet: 10/100 BaseT

Video Output: HDMI (rev 1.3 & 1.4), Composite RCA (PAL and NTSC)

Audio Output: 3.5mm jack, HDMI

USB: 4 x USB 2.0 Connector.

GPIO: Connector 40-pin 2.54 mm (100 mil) expansion header: 2x20 strip. Providing 27 GPIO pins as well as +3.3 V, +5 V and GND supply lines

Camera: Connector 15-pin MIPI Camera Serial Interface (CSI-2)

JTAG: Not populated

Display Connector: Display Serial Interface (DSI) 15 way flat flex cable connector with two data lanes and a clock lane

Memory Card Slot: SDIO

Dimensions: 85 x 56 x 17mm

An even smaller version of the Raspberry Pi 1 Model A, which consumes less power, has more general-purpose input/output pins for expandability, uses Micro SD rather than SD and offers better audio.

Specs

Chip: Broadcom BCM2835 SoC

Core: architecture ARM11

CPU: 700 MHz Low Power ARM1176JZFS Applications Processor

GPU: Dual Core VideoCore IV Multimedia Co-Processor. Provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode. Capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure.

Memory: 256MB SDRAM

Dimensions: 65mm x 56mm / 2.5" x 2.25"

Power: Micro USB socket 5V, 2A

No Ethernet

Audio Output: 3.5mm jack, HDMI

USB: 1 x USB 2.0 Connector

GPIO: Connector 40-pin 2.54 mm (100 mil) expansion header: 2x20 strip. Providing 27 GPIO pins as well as +3.3 V, +5 V and GND supply lines

Video Output: HDMI and Composite

Sound: L/R Stereo (via 3.5mm 4 Pole Cable)

Memory: 256MB Ram

Operating System: Uses microSD card slot to load OS. A range of Linux-based OSes are available to download, including NOOBS, Raspbian, Pidora, OpenELEC, RaspBMC. Also available is RiscOS, a non-Linux distro.

Digital interfaces: 2 onboard ribbon slots for Camera and Display

The Raspberry Pi 2 boosted the board's specs to a quad-core processor and 1GB of memory - with the new machine racking up several times the benchmark score of its predecessor, as well as being able to run Windows 10 IoT Core and Ubuntu.

Specs

• 900MHz quad-core Broadcom BCM2836 CPU with 1GB DDR2 RAM
• VideoCore IV 3D graphics core
• 40 pin extended pins - with 27 GPIO pins
• Micro SD slot
• Multiple ports: Four USB ports, full sized HDMI, four pole stereo output and composite video port. CSI camera port and DSI display port
• 10/100 BaseT Ethernet
• Micro-USB power source 5V, 2A
• Dimensions: 85 x 56 x 17mm

Despite costing a minuscule $5, the Pi Zero is a little bit more capable than the original Raspberry Pi Model B that launched back in 2012 for $35.

The board has the same single-core, ARM-based processor as the first gen Model B but it's slightly faster. The system memory remains the same.

Specs

• BCM 2835 System on a Chip 1GHz
• 512MB of RAM
• micro-SD storage
• mini-HDMI
• Two micro USB ports - one for power and one for data
• Unpopulated 40-pin GPIO connector
• Compatible with existing HAT addons
• Dimensions: 65mm x 30mm x 5mm

The Raspberry Pi 3 introduces support for a number of technologies for the first time. It's the first Pi to be based on a 64-bit chipset and to include wi-fi and Bluetooth connectivity.

The newer and faster chipset performs some 50 percent better than that of the Raspberry Pi 2 and roughly ten times better than the original single-core Raspberry Pi in a multi-threaded CPU benchmark like SysBench.

Specs

• Chipset: Broadcom BCM2837
• CPU: 1.2GHz quad-core 64-bit ARM cortex A53
• Ethernet : 10/100 (Max throughput 100Mbps)
• USB: Four USB 2.0 with 480Mbps data transfer
• Storage: MicroSD card or via USB-attached storage
• Wireless: 802.11n Wireless LAN (Peak transmit/receive throughput of 150Mbps), Bluetooth 4.1
• Graphics: 400MHz VideoCore IV multimedia
• Memory: 1GB LPDDR2-900 SDRAM
• Expandability: 40 general purpose input-output pins
• Video: Full HDMI port
• Audio: Combined 3.5mm audio out jack and composite video
• Camera interface (CSI)
• Display interface (DSI)

The new Raspberry Pi 3 Model B+ is the most powerful Raspberry Pi available, upping both the raw performance and Wi-Fi speeds.

The new board is a beefier version of the Raspberry Pi 3 Model B, sharing many of the same specs but overclocking the processor to 1.4GHz -- a 16.7% increase.

On top of the faster processor, the new board also boasts improved connectivity, adding support for dual-band 802.11b/g/n/ac Wi-Fi -- effectively almost tripling the Wi-Fi throughput of the base Pi 3 -- and increasing the speed of the board's Ethernet.

Specs

Processor: Broadcom BCM2837B0, quad-core A53 (ARMv8) 64-bit SoC @1.4GHz

Memory: 1GB LPDDR2 SDRAM

Connectivity: 2.4GHz and 5GHz IEEE 802.11 b/g/n/ac wireless LAN, Bluetooth 4.2, BLE. Gigabit Ethernet over USB 2.0 (maximum throughput of 300Mbps).

USB: 4 x 2.0

Expandability: Extended 40-pin GPIO header

Video and sound: 1 x full-sized HDMI port, MIPI DSI display port, MIPI CSI camera port, 4 pole stereo output and composite video port.

Multimedia: H.264, MPEG-4 decode (1080p30), H.264 encode (1080p30); OpenGL ES 1.1, 2.0 graphics

SD card support: microSD format for OS and data storage

Input power: 5V/2.5A DC via microUSB connector, 5V DC via GPIO header, Power over Ethernet (PoE)-enabled (requires separate PoE add-on).

Environment: Operating temperature 0 - 50C

Compliance: Local and regional approvals listed here.

Production lifetime: Raspberry Pi 3 Model B+ will remain in production until at least January 2023.