Raspberry Pi 4
Raspberry Pi 4 Model B
Here are the highlights:
- A 1.5GHz quad-core 64-bit ARM Cortex-A72 CPU (~3× performance)
- 1GB, 2GB, or 4GB of LPDDR4 SDRAM
- Full-throughput Gigabit Ethernet
- Dual-band 802.11ac wireless networking
- Bluetooth 5.0
- Two USB 3.0 and two USB 2.0 ports
- Dual monitor support, at resolutions up to 4K
- VideoCore VI graphics, supporting OpenGL ES 3.x
- 4Kp60 hardware decode of HEVC video
- Complete compatibility with earlier Raspberry Pi products
And here it is in the flesh:
Raspberry Pi 4 memory options
This is the first time we’re offering a choice of memory capacities. We’ve gone for the following price structure, retaining our signature $35 price for the entry-level model:
As always these prices exclude sales tax, import duty (where appropriate), and shipping. All three variants are launching today: we have initially built more of the 2GB variant than of the others, and will adjust the mix over time as we discover which one is most popular.
New Raspberry Pi 4, new features
At first glance, the Raspberry Pi 4 board looks very similar to our previous $35 products, all the way back to 2014’s Raspberry Pi 1B+. James worked hard to keep it this way, but for the first time he has made a small number of essential tweaks to the form factor to accommodate new features.
We’ve moved from USB micro-B to USB-C for our power connector. This supports an extra 500mA of current, ensuring we have a full 1.2A for downstream USB devices, even under heavy CPU load.
To accommodate dual display output within the existing board footprint, we’ve replaced the type-A (full-size) HDMI connector with a pair of type-D (micro) HDMI connectors.
Ethernet and USB
Our Gigabit Ethernet magjack has moved to the top right of the board, from the bottom right, greatly simplifying PCB routing. The 4-pin Power-over-Ethernet (PoE) connector remains in the same location, so Raspberry Pi 4 remains compatible with the PoE HAT.
The Ethernet controller on the main SoC is connected to an external Broadcom PHY over a dedicated RGMII link, providing full throughput. USB is provided via an external VLI controller, connected over a single PCI Express Gen 2 lane, and providing a total of 4Gbps of bandwidth, shared between the four ports.
All three connectors on the right-hand side of the board overhang the edge by an additional millimetre, with the aim of simplifying case design. In all other respects, the connector and mounting hole layout remains the same, ensuring compatibility with existing HATs and other accessories.
New Raspbian software
To support Raspberry Pi 4, we are shipping a radically overhauled operating system, based on the forthcoming Debian 10 Buster release. This brings numerous behind-the-scenes technical improvements, along with an extensively modernised user interface, and updated applications including the Chromium 74 web browser. Simon will take an in-depth look at the changes in tomorrow’s blog post, but for now, here’s a screenshot of it in action.
Some advice for those who are keen to get going with Raspbian Buster right away: we strongly recommend you download a new image, rather than upgrading an existing card. This ensures that you’re starting with a clean, working Buster system. If you really, really want to try upgrading, make a backup first.
One notable step forward is that for Raspberry Pi 4, we are retiring the legacy graphics driver stack used on previous models. Instead, we’re using the Mesa“V3D” driver developed by Eric Anholt at Broadcom over the last five years. This offers many benefits, including OpenGL-accelerated web browsing and desktop composition, and the ability to run 3D applications in a window under X. It also eliminates roughly half of the lines of closed-source code in the platform.
New Raspberry Pi 4 accessories
Connector and form-factor changes bring with them a requirement for new accessories. We’re sensitive to the fact that we’re requiring people to buy these: Mike and Austin have worked hard to source good-quality, cost-effective products for our reseller and licensee partners, and to find low-cost alternatives where possible.
Raspberry Pi 4 Case
We’re very pleased with how this has turned out, but if you’d like to re-use one of our existing cases, you can simply cut away the plastic fins on the right-hand side and omit one of the side panels as shown below.
Raspberry Pi 4 Power Supply
Good, low-cost USB-C power supplies (and USB-C cables) are surprisingly hard to find, as we discovered when sending out prototype units to alpha testers. So we worked with Ktec to develop a suitable 5V/3A power supply; this is priced at $8, and is available in UK (type G), European (type C), North American (type A) and Australian (type I) plug formats.
If you’d like to re-use a Raspberry Pi 3 Official Power Supply, our resellers are offering a $1 adapter which converts from USB micro-B to USB-C. The thick wires and good load-step response of the old official supply make this a surprisingly competitive solution if you don’t need a full 3 amps.
Raspberry Pi 4 micro HDMI Cables
Again, low-cost micro HDMI cables which reliably support the 6Gbps data rate needed for 4Kp60 video can be hard to find. We like the Amazon Basics cable, but we’ve also sourced a 1m cable, which will be available from our resellers for $5.
Updated Raspberry Pi Beginner’s Guide
At the end of last year, Raspberry Pi Press released the Official Raspberry Pi Beginner’s Guide. Gareth Halfacree has produced an updated version, covering the new features of Raspberry Pi 4 and our updated operating system.
Raspberry Pi 4 Desktop Kit
Bringing all of this together, we’re offering a complete Desktop Kit. This is priced at $120, and comprises:
- A 4GB Raspberry Pi 4
- An official case
- An official PSU
- An official mouse and keyboard
- A pair of HDMI cables
- A copy of the updated Beginner’s Guide
- A pre-installed 16GB 32GB [oops – Ed.] microSD card
Raspberry Pi Store
This is the first product launch following the opening of our store in Cambridge, UK. For the first time, you can come and buy Raspberry Pi 4 directly from us, today. We’ll be open from 8am to 8pm, with units set up for you to play with and a couple of thousand on hand for you to buy. We even have some exclusive launch-day swag.
If you’re in the bottom right-hand corner of the UK, come on over and check it out!
Credits :Chief Executive Raspberry Pi Trading, Mr Eben Upton