You can try to check which Pi you have by looking at the board layout and the components used, but this might not be very easy or reliable. Since the range of Pi models gives a significant difference in performance, this can be quite important, especially if not buying through the approved channels.
The reliable way to find out your board revision is to use the following command:
cat /proc/cpuinfoYou will see your device data including:
Hardware : BCM2708 Revision : 0003
If you see a “1000” at the front of the Revision, e.g. 10000002 then it indicates<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=32&t=18133#p181069</ref> that your Raspberry Pi has been Overclocking | over-volted, and your board revision is simply the last 4 digits (i.e. 0002 in this example).
Another method to obtain just the revision ID (also removes any overvoltage mark):
cat /proc/cpuinfo ]] | [[ grep 'Revision' ]] | [[ awk '{print $3}' ]] | [[ sed 's/^1000//'or more simply:
awk '/^Revision/ {sub("^1000", "", $3); print $3}' /proc/cpuinfoor use a web tool
rev=$(awk '/^Revision/ { print $3 }' /proc/cpuinfo) && curl -L perturb.org/rpi?rev=$rev
<!– Much of the info in this table can be found at http://raspberryalphaomega.org.uk/?p=428 and
http://www.raspberrypi.org/phpBB3/viewtopic.php?p=281039&sid=c62f76dcc4871906db356d5dc1acfeb4#p281039 See also http://www.raspberrypi.org/archives/1929 -->
{]] | border="1" ! Revision ! Release Date ! Model ! PCB Revision ! Memory ! Notes | - | Beta | Q1 2012 | B (Beta) | rpi_hardwarehistory | MB | Beta Board | - | 0002 | Q1 2012 | B | 1.0 | MB | rpi_hardwarehistory | - | 0003 | Q3 2012 | B (ECN0001) | 1.0 | MB | Fuses mod and D14 removed | - | 0004 | Q3 2012 | B | 2.0 | MB | (Mfg by Sony) | - | 0005 | Q4 2012 | B | 2.0 | MB | (Mfg by Qisda) | - | 0006 | Q4 2012 | B | 2.0 | MB | (Mfg by Egoman) | - | 0007 | Q1 2013 | A | 2.0 | MB | (Mfg by Egoman) | - | 0008 | Q1 2013 | A | 2.0 | MB | (Mfg by Sony) | - | 0009 | Q1 2013 | A | 2.0 | MB | (Mfg by Qisda) | - | 000d | Q4 2012 | B | 2.0 | MB | (Mfg by Egoman) | - | 000e | Q4 2012 | B | 2.0 | MB | (Mfg by Sony) | - | 000f | Q4 2012 | B | 2.0 | MB | (Mfg by Qisda) | - | 0010 | Q3 2014 | B+ | 1.0 | MB | (Mfg by Sony) | - | 0011 | Q2 2014 | Compute Module 1 | 1.0 | MB | (Mfg by Sony) | - | 0012 | Q4 2014 | A+ | 1.1 | MB | (Mfg by Sony) | - | 0013 | Q1 2015 | B+ | 1.2 | MB | (Mfg by Embest) | - | 0014 | Q2 2014 | Compute Module 1 | 1.0 | MB | (Mfg by Embest) | - | 0015 | rpi_hardwarehistory | A+ | 1.1 | MB | (Mfg by Embest) | - | a01040 | Unknown | 2 Model B | 1.0 | GB | (Mfg by Sony) | - | a01041 | Q1 2015 | 2 Model B | 1.1 | GB | (Mfg by Sony) | - | a21041 | Q1 2015 | 2 Model B | 1.1 | GB | (Mfg by Embest) | - | a22042 | Q3 2016 | 2 Model B (with BCM2837) | 1.2 | GB | (Mfg by Embest) | - | 900021 | Q3 2016 | A+ | 1.1 | MB | (Mfg by Sony) | - | 900032 | Q2 2016 | B+ | 1.2 | MB | (Mfg by Sony) | - | 900092 | Q4 2015 | Zero | 1.2 | MB | (Mfg by Sony) | - | 900093 | Q2 2016 | Zero | 1.3 | MB | (Mfg by Sony) | - | 920093 | Q4 2016 | Zero | 1.3 | MB | (Mfg by Embest) | - | 9000c1 | Q1 2017 | Zero W | 1.1 | MB | (Mfg by Sony) | - | a02082 | Q1 2016 | 3 Model B | 1.2 | GB | (Mfg by Sony) | - | a020a0 | Q1 2017 | Compute Module 3 (and CM3 Lite) | 1.0 | GB | (Mfg by Sony) | - | a22082 | Q1 2016 | 3 Model B | 1.2 | GB | (Mfg by Embest) | - | a32082 | Q4 2016 | 3 Model B | 1.2 | GB | (Mfg by Sony Japan) | - | a020d3 | Q1 2018 | 3 Model B+ | 1.3 | GB | (Mfg by Sony) | - | 9020e0 | Q4 2018 | 3 Model A+ | 1.0 | MB | (Mfg by Sony) | - | a02100 | Q1 2019 | Compute Module 3+ | 1.0 | GB | (Mfg by Sony) | - | a03111 | Q2 2019 | 4 Model B | 1.1 | GB | (Mfg by Sony) | - | b03111 | Q2 2019 | 4 Model B | 1.1 | GB | (Mfg by Sony) | - | c03111 | Q2 2019 | 4 Model B | 1.1 | GB | (Mfg by Sony) | //www.raspberrypi.org/phpBB3/viewtopic.php | 250px | thumb | right | A Chinese R-Pi (Model B Rev 2.0)
The vast majority of the Raspberry Pis produced have a <b>Green</b> PCB, but Pis produced by Egoman_Technology_Corp | Egoman_Technology_Corp (only available in the Far East) have a <b>Red</b><ref>http://www.raspberrypi.org/archives/3195</ref> PCB, and RS Components produced a limited edition of anniversary Pis in <b>Blue</b><ref>http://www.raspberrypi.org/archives/3422</ref>. The red-PCB model sold in the far east is functionally the same as the standard green-PCB model sold in the rest of the world, but it has not passed the compliance testing required for sale in those areas (for example, FCC in the USA, and CE Mark in the EU).
The following models can be considered current due to the large numbers that were shipped. They may be available from commercial suppliers or as pre-owned models.
Announced on 24th June 2019 (announcement). The Raspberry Pi 4 is a new Pi design, with ethernet + USB ports swapping positions from previous models. In addition, the 4 has three variants, only differing in amount of RAM: 1/2/4GB models, selling for $35/45/55.
| thumb | Raspberry Pi 4 Model B 4GB version
The Raspberry Pi 4 features:
Announced on “Pi Day”, 14th March 2018 (announcement). The Raspberry Pi 3 Model B+ is an incremental improvement over the previous Pi 3 Model B for the same US$35 price.
| 250px | thumbnail | right | Raspberry Pi 3 Model B+
The Raspberry Pi 3+ features:
Announced on 29th Feb 2016 (full announcement from the Raspberry Pi Foundation). The Raspberry Pi 3 retains the same US$35 price point of the Raspberry Pi 2 model B.
| 250px | thumbnail | right | Raspberry Pi 3 Model B
The Raspberry Pi 3 features:
Announced on 2nd Feb 2015 (full announcement from the Raspberry Pi Foundation). The Raspberry Pi 2 retains the same US$35 price point of the model B+.
| 250px | thumbnail | right | Raspberry Pi 2 Model B
The Raspberry Pi 2 features:
Announced on 14th July 2014 (full announcement from the Raspberry Pi Foundation).
| 250px | thumb | right | The RPi full production board (Model B+)
The Raspberry Pi B+ features:
| 250px | thumb | right | The RPi compute module Announced on 7th Apr 2014 Full announcement from the Raspberry Pi Foundation.
The compute module contains the guts of a Raspberry Pi (the BCM2835 processor and 512 MB of RAM) as well as a 4 GB eMMC Flash device. This is integrated on to a small 67.6x30mm board which fits into a standard DDR2 SODIMM connector.
| 250px | thumb | right | The RPi full production board (Model B Rev 2.0)
These are unlikely to be readily available, and would then be in demand by collectors.
10 of the completed Model B boards were auctioned on eBay (Started on 1st Jan 2012) <ref name=“betaebay”>We’re auctioning ten beta Raspberry Pis!</ref>) {]] | border="1" | SerialNo | 1 | 2 | 3 | 4 | 5 | 6 | 7<ref name="#7Donated"/> | 8<ref name="#8PaulMaunders"/> | 9 | 10 | - | Date | 11-Jan-2012 | 11-Jan-2012 | 10-Jan-2012 | 10-Jan-2012 | 09-Jan-2012 | 09-Jan-2012 | 08-Jan-2012 | 08-Jan-2012 | 07-Jan-2012 | 07-Jan-2012 | - | Sold For | £3,500 | £2,150 | £2,257 | £1,550 | £1,040 | £1,000 | £989 | £1,020 | £930 | £1,900 | 7 was anonymously (and generously) donated to [http://www.computinghistory.org.uk/ Centre for Computing History]<ref name="#7Donated">[http://www.raspberrypi.org/archives/503 Beta board bought by anonymous bidder and donated to museum]</ref> (also spotted [http://twitpic.com/86trra here..])! Board #8 Owned by Tech Blogger, Paul Maunders, see his [http://www.pyrosoft.co.uk/blog blog] for details<ref name="#8PaulMaunders">[http://www.pyrosoft.co.uk/blog/2012/01/13/raspberry-pi-8-first-photoshoot/ Paul Maunders - Raspberry Pi #8 First Photoshoot]</ref> ===Raspberry Pi Alpha Board=== [[File:RPi-alpha.jpg | 250px | thumb | right | RPi Alpha Board
| 250px | thumb | right | RPi USB Prototype Board
| 250px | thumb | right | Raspberry Pi Concept 2006 edition
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