The Raspberry Pi Foundation officially launched their new Raspberry Pi 3 Model B on 29th February 2016.
- The new model uses the later Broadcom BCM2837 System-on-Chip (SoC), which includes the following updated features:
- ARM Cortex-A53 64-Bit Quad-Core CPU, running at 1.2 GHz
- Broadcom VideoCore IV BCM2763 GPU, running at 400 MHz (3D-Core at 300 MHz)
- 1 GB LPDD2 SDRAM, running at 900 MHz
- The new model adds the Broadcom BCM43438 wireless “combo” chip, which in-turn adds the following functionality:
- IEEE 802.11n 2.4 GHz WiFi
- Bluetooth 4.0 with Low Energy support
Otherwise, the new board is essentially the same and the Raspberry Pi 2 Model B.
One thing I find very unfortunate, however, is that the Raspberry Pi Foundation have still not addressed the USB/SoC limited bandwidth issues in their current design. All communications between the SoC and devices connected to the USB 2.0 hub is via a single USB 2.0 480 Mbps channel. This includes the Ethernet network interface, and potentially the WiFi and Bluetooth interfaces (yet to be confirmed). Many people, myself included, would like to see the network interface(s) connected directly to the SoC rather than using an Ethernet to USB bridge.
Although the minimum power requirements remain the same, the recommendation is now for a 5 Volt 2.5 Amp adapter if you plan to connect a number of USB devices to your Raspberry Pi.
Users will still need to run the 32-bit release of Raspbian on the Raspberry Pi 3, as plans for a 64-bit release are a while off – if at all! This is something the Raspberry Pi Foundation will be investigating over the coming months.
The Raspberry Pi 3 Model B is available from the normal resellers. If you are in Australia, I can recommend AusPi Technologies.
|Raspberry Pi 2
|Raspberry Pi 3
700 MHz 32-Bit
900 MHz 32-Bit
1.2 GHz 64-Bit
|GPU||Broadcom VideoCore IV
BCM2763 250 MHz
BCM2763 400 MHz
3D-Core 300 MHz
|Memory 1||256 MB||512 MB||1 GB LPDDR2
|1 GB LPDDR2
|USB 2.0 2||1||4|
|Video Input||Camera Serial Interface (CSI)|
|Video Output||HDMI 1.4
Display Serial Interface (DSI)
3.5mm TRRS jack (composite video)
|Audio Output||HDMI 1.4
3.5mm TRRS jack (analogue audio)
|Ethernet 3||None||10/100 Mbps
|WiFi||None||802.11n 2.4 GHz
|Power Rating||200 mA (1 W)||600 mA (3 W)||800 mA (4 W)|
|Power Source||5 V from MicroUSB or GPIO Header|
|Dimensions||65 mm x 56.5 mm||85.6 mm x 56.5 mm|
|Weight||23 g||45 g|
|Released||November 2014||July 2014||February 2015||February 2016|
2 USB 2.0 ports provided using on-board USB hub connected to SoC via a single USB 2.0 channel.
3 Ethernet adapter is connected to third/fifth port of the USB hub.
Raspberry Pi is a trademark of the Raspberry Pi Foundation.
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