Raspberry PI 4 Released

Raspberry Pi 4 was just released: Faster CPU, More Memory, Dual HDMI Ports. A new version of the $35 computer features a 1.5GHz Arm chip and support for dual-HDMI 4K displays, Gigabit Ethernet, and much more. This credit card size Raspberry PI 4 desktop computer level of performance. Raspberry Pi 4 is now on sale, starting at $35. $35 gets you the standard 1GB RAM, or you can pay $45 for the 2GB model or $55 for the 4GB model.

Here are picture and video from Pi 4 release page:



Feature picture from product page:


More information:
Raspberry Pi 4 Just Released: Faster CPU, More Memory, Dual HDMI Ports

Raspberry PI 4 Released – Complete specs and pricing

Meet the New Raspberry Pi 4, Model B

Raspberry Pi 4 is here!

Raspberry Pi 4 homepage

Raspberry Pi 4 on sale now from $35



  1. Tomi Engdahl says:

    Premier Farnell Announces Launch of Ground-breaking Raspberry Pi 4 Computer

    Raspberry Pi’s new more-powerful model is three times faster and offers greater memory capacity, with improved interface and connectivity, to extend capabilities for all users

    The Raspberry Pi 4 Model B Computer offers significant enhancements in processor speed, multimedia performance, memory and connectivity that will make it attractive to general desktop computer users, hobbyist and makers, and professional developers working with compute-intensive embedded applications such as computer vision and Artificial Intelligence (AI).

    he Raspberry Pi 4 Model B Computer is the first model to use a 28nm SoC, delivering a significant increase in performance and energy efficiency.

    Processor: A quad-core ARM Cortex-A72 64-bit processor clocked at 1.5GHz enables the Raspberry Pi 4 Model B to run up to three times faster than its predecessor.
    Video and Sound: Two micro HDMI ports support dual-display output at resolutions up to 4K.
    New SuperSpeed USB 3.0 delivers faster transfer rates to mass-storage devices (up to 5 Gbps).
    True Gigabit Ethernet connectivity delivers network data rates of up to 1 Gbps.
    Dual-band wireless networking at 2.4 GHz and 5 GHz delivers real-world data rates in excess of 100 Mbps. Modular compliance certification allows the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.
    Other features include:

    Memory: 1GB, 2GB and 4GB LPDDR4 memory options.
    Multimedia: H.265 decode (4kp60), H.264 decode (1080p60) and H.264 encode (1080p30); OpenGL ES 3.0 graphics; image sensor pipeline.
    GPIO: Standard 40-pin GPIO header with full backward compatibility, and additional multiplexed UART, I2C and SPI peripherals.
    SD card support: Micro SD card slot for loading operating system and data storage.
    Power over Ethernet: PoE support, using separate HAT accessory.

    “As a desktop computer, the Raspberry Pi 4 Model B Computer provides performance comparable to entry-level x86 PC systems, with an exceptional video and multimedia experience

    The Raspberry Pi 4 Computer is available now from Farnell across EMEA and CPC in the UK, and Newark in North America.

  2. Tomi Engdahl says:

    Raspberry Pi 4 Review: The New Gold Standard for Single-Board Computing

  3. Tomi Engdahl says:

    X-raying the new Raspberry Pi 4.

    Raspberry Pi 4 Radiographs


  4. Tomi Engdahl says:

    Raspberry Pi on Raspberry Pi

    The Raspberry Pi 4 is out. It’s a quad core ARM A72 running at 1.5Ghz with 4GB of RAM and native 1Gbps ethernet. This means that according to our benchmarks (PHP 7.3 and WordPress) it’s about 2.5x the speed of the 3B+, thanks to the much faster core design and slight clock speed boost. The downside is that it uses more power. Idle power consumption is up slightly to about 3W, peak is now around 7W, up from 5W. It has some improved video features too and USB3.

    How about hosting the Raspberry Pi website on the Raspberry Pi 4, on the Raspberry Pi 4 launch day?

    We’ve set up 14 Pi 4s for PHP processing for the main website (56 cores, 56GB RAM), two for static file serving (8 cores, 8GB RAM) and two for memcached (8 cores / 8GB RAM).

    Pi 4s don’t yet support netboot, and so these ones have local SD card storage rather than netboot and network file storage. This means they can’t be remotely re-imaged and have comparatively unreliable storage. The configuration is also only deployed in a single data centre with all servers on a single switch, whereas in normal usage the Raspberry Pi website is simultaneously hosted in two different data centres for redundancy.

    To make things more nerve wracking, Pi 4 requires Debian Buster which is a pre-release version of the operating system (full release July 6th).

    We haven’t moved the entire stack to the Pi 4. The front-end load balancers, download and apt servers are still on non-Pi hardware, split across three data centres (two in London, one in Amsterdam). The Pi 4 hardware looks well-suited to taking over these roles too

    Once netboot on Pi 4 is available, we’ll be adding 4 core A72 / 4GB servers to our Pi Cloud, at a slightly higher price than the existing Pi 3 servers, reflecting the higher hardware and power costs.

  5. Tomi Engdahl says:

    Benchmarking TensorFlow Lite on the New Raspberry Pi 4, Model B

    We see between a ×3 and ×4 increase in inferencing speed between our original TensorFlow benchmark, and the new results using TensorFlow Lite. This decrease in inferencing time brings the Raspberry Pi 4 directly into competition with the NVIDIA Jetson Nano.

    Benchmarking was done using both TensorFlow and TensorFlow Lite on a Raspberry Pi 3, Model B+, and on the 4GB version of the Raspberry Pi 4, Model B. Inferencing was carried out with the MobileNet v2 SSD and MobileNet v1 0.75 depth SSD models, both models trained on the Common Objects in Context (COCO) dataset, converted to TensorFlow Lite.

  6. Tomi Engdahl says:

    Do You Need to Use a Fan for Cooling with the New Raspberry Pi 4?
    Passive and active cooling for thermal control of the Raspberry Pi

  7. Tomi Engdahl says:

    Your new Raspberry Pi 4 won’t power on? USB-C cable problem now officially confirmed

    The Pi’s co-creator Eben Upton says that not every USB-C cable will power the Pi.

    The Pi 4 doesn’t receive power when used with electronically marked or e-marked USB-C cables, the type used by Apple MacBooks and other laptops.

    “A smart charger with an e-marked cable will incorrectly identify the Raspberry Pi 4 as an audio adapter accessory, and refuse to provide power,” says Upton.

    “I expect this will be fixed in a future board revision, but for now users will need to apply one of the suggested workarounds. It’s surprising this didn’t show up in our (quite extensive) field testing program.”

    power supply that can deliver the 5.1V/3A the board needs. One option is to buy the $8/£8 official Raspberry Pi 4 power supply.

    Ward suggests that “using older chargers with A-C cables or micro B to C adaptors will also work if they provide enough power”.

    Pi4 not working with some chargers (or why you need two cc resistors)

    the incorrect detection circuitry on the Pi end of the USB connection.

    The root cause of the problem is the shared cc pull down resistor on the USB Type-C connector.

    With most chargers this wont be an issue as basic cables only use one CC line which is connected through the cable and as a result the pi will be detected correctly and receive power. The problem comes in with e-marked cables which use both CC connections.

    Active cables also signal their presence using another value or resistor Ra (800 ohms – 1200 ohms).

    With effectively two Ra values presented to the Source end it will detect the Pi as an “Audio Adaptor Accessory”. These are analogue audio interfaces to allow for headphones to be connected to phones for example (although some phones use headphones/adaptors with inbuilt sound-cards which appear as USB devices).

    Now onto some solutions. Assuming the issue you are having is caused by the problem discussed above, using a non e-marked cable (most USB-C phone charger cables are likely this type) rather than an e-marked cable (many laptop charger/thunderbolt cables and any 5A capable cable will be in this category) will allow for the pi to be powered. In addition using older chargers with A-C cables or micro B to C adaptors will also work if they provide enough power as these don’t require CC detection to provide power. Ultimately though the best solution in the long run will be for there to be a board revision for the pi 4 which adds the 2nd CC resistor and fixes the problem.

  8. Tomi Engdahl says:

    Raspberry Pi 4 B+ – PCI Express

    Connecting external PCI Express devices to Raspberry Pi 4 B+ – since this is the first Raspberry Pi with proper PCI Express interface, it begged to be attempted.

    importantly for our purposes, the USB 3.0 (and 2.0) chip is attached via the PCI Express interface – that means, if we were to remove it, we can gain access to the underlying bus. So, without further ado, the sacrificial goat.. uhm, chip.

  9. Tomi Engdahl says:

    Do You Need to Use a Fan for Cooling with the New Raspberry Pi 4?

    Passive and active cooling for thermal control of the Raspberry Pi

  10. Tomi Engdahl says:

    Keep Your New Raspberry Pi 4 Chilled with the ICE Tower CPU Cooler

    early reports suggest the Raspberry Pi 4 Model B runs hot under load. Luckily, you can cool it down with the ICE Tower CPU fan cooler

    The ICE Tower CPU fan cooler was originally designed for the Pi 3B, but Seeed Studio says that it’s compatible with the Pi 4 Model B, too.

    You certainly don’t need this cooler to use the new Raspberry Pi — it’ll still work fine without any active cooling if you’re not doing anything too heavy.

  11. Tomi Engdahl says:

    Processor And Network Performance Makes It A Real Desktop Contender

    The new Raspberry Pi 4 is out, and slowly they’re working their way from Microcenters and Amazon distribution sites to desktops and workbenches around the world. Before you whip out a fancy new USB C cable and plug those Pis in, it’s worthwhile to know what you’re getting into. The newest Raspberry Pi is blazing fast. Not only that, but because of the new System on Chip, it’s now a viable platform for a cheap homebrew NAS, a streaming server, or anything else that requires a massive amount of bandwidth. This is the Pi of the future.

    The Raspberry Pi 4 features a BCM2711B0 System on Chip, a quad-core Cortex-A72 processor clocked at up to 1.5GHz, with up to 4GB of RAM (with hints about an upcoming 8GB version).

    The Pi 4 brings an entirely new SoC, a new GPU, new RAM, and new everything. The question is, does this matter?

    For years, the Pi has had a 32-bit memory bus, although this really didn’t matter because you could only get a Raspberry Pi 3 with 1GB of RAM. Years ago, the RAM was soldered directly onto the SoC, which meant production of that model would stop when production of that RAM chip stopped. RAM has always been the limiting factor for the Pi. This changed with the Pi 4. We now have an SoC with more data and address lines going to the RAM. Oh, and we have more than 1GB of RAM now.

    You can get a Pi with 4GB of RAM now, and the 8GB version has been unofficially announced in official spec sheets.

    by every account the Raspberry Pi 4 is pulling down the bits as fast as my router will allow. The Raspberry Pi 3, however, is hindered by the USB to Ethernet controller. The Raspberry Pi 4 is now a competent 4K streaming box, and not just because this is the Raspberry Pi that supports 4K HDMI.

    The Wireless in the Raspberry Pi 4 is better.

    Now the Raspberry Pi is on par with any desktop experience.

  12. Tomi Engdahl says:

    Farnell Sales of Raspberry Pi Computer Reach 15 Million Worldwide
    Farnell sales help make Raspberry Pi the UK’s most successful computer, and the third-most popular general-purpose computing platform in history

  13. Tomi Engdahl says:

    The Raspberry Pi 4 is a big step up in power – but is it good enough for me to use for everyday work at my desk? Let’s find out.

    Can a Raspberry Pi 4 really replace your PC?

    In my opinion the Raspbian GNU/Linux operating system has been a success story in its own right over the past five years or so.

    If you are planning to use a Raspberry Pi as a common desktop system I would recommend installing the “With Desktop” rather than the “Recommended Software” version

    This is the area where there have been problems when trying to use previous models of the Raspberry Pi for everyday desktop work.

    This time I got a very pleasant surprise from the Rasbpberry Pi 4. It boots very quickly, and once it is up and running it consistently starts new applications quite reasonably as well. It is still nowhere near as fast as my latest laptops, but I don’t expect that from a system which is loading everything from a relatively slow SD card.

    it appears that Raspbian uses about 450MB of memory when it is idle immediately after booting.

    When I was using the 1GB model, I was able to run LibreOffice and GIMP simultaneously without trouble, but when I added Chromium to the mix, the whole system basically went out to lunch.

    When I switched to the 2GB model, things got a lot better. With the same three major applications running, performance was still good

    I would say that is definitely worth the CHF 10.- price difference.

    I could not see any difference in the performance between the 2GB and 4GB systems. The memory usage was more or less the same

    The “elephant in the room” when it comes to Raspberry Pi hardware is, of course, the CPU temperature and possible overheating. This has been an ongoing issue since the very first Raspberry Pi Model A, and if anything it has gotten a bit worse as each new model

    There are at least three ways to attack this problem that I can think of offhand: heat sinks, a better ventilated case, or a cooling fan.

    if you remove power before Raspbian has finished shutting down, you can corrupt the filesystem on the SD card.

    A number of add-on boards (HAT) incorporate a hardware on/off switch

    If you’re thinking of using it as a desktop system, you need to get the 2GB or 4GB model. It’s that simple.

    You’re going to want a case to protect it from dust, dirt, coffee, flying paperclips and such.

    I would recommend getting the official 15 Watt USB-C power supply. You don’t have to worry about compatibility and you don’t have to worry if it will provide enough power.

    You’re going to need a keyboard and mouse.

  14. Tomi Engdahl says:

    A Raspberry Pi 4 Video Streaming Backpack

    Were you aware that there’s a market for backpack-housed live streaming video systems, and that they can cost as much as $1600? Apparently these things are popular with social media moguls who want to stream themselves living their fabulous lives to people sitting at home watching on YouTube or Twitch. But believing that even slack jawed yokels like us should have access to the same technology, [Speedify Labs] has been working on less expensive DIY alternative based on the Raspberry Pi 4.


  15. Tomi Engdahl says:

    Farnell Sales of Raspberry Pi Computer Reach 15 Million Worldwide


    Farnell sales help make Raspberry Pi the UK’s most successful computer, and the third-most popular general-purpose computing platform in history

  16. Tomi Engdahl says:

    The hot-running Raspberry Pi 4 now has a new firmware thats tames its heat output a smidge by enabling power saving on the Via Labs VL805 USB 3.0 host controller chip — after developers fixed a flaw in an earlier build of the firmware which could cause selected USB 3.0 devices to perform incredibly slowly.

    Newly-Released Raspberry Pi 4 USB 3.0 Firmware Drops Power Draw, Heat Output on All Models

  17. Tomi Engdahl says:

    The Raspberry Pi Foundation has confirmed it is working on a firmware update to resolve an unusual bug with its latest Raspberry Pi 4: Running the device at high resolutions can, in particular circumstances and with particular cables and access points running at specific frequencies, knock out its ability to connect to Wi-Fi networks.

    Raspberry Pi Foundation Confirms Rare Raspberry Pi 4 Wi-Fi Bug, Says a Firmware Fix Is on the Way

    Low-frequency 2.4GHz networks can get knocked out when running the Pi at higher display resolutions, the Foundation confirms.

  18. Tomi Engdahl says:

    Changes available in upstream Mesa now, but there’s no date yet for when they will become part of a stock Raspbian installation.

    Raspberry Pi 4 Model B Gains Official OpenGL 3.1


    Conformance Certification From the Khronos Group
    Changes available in upstream Mesa now, but there’s no date yet for when they will become part of a stock Raspbian installation.


Leave a Comment

Your email address will not be published. Required fields are marked *