With the Raspberry Pi 4 Model B, there are also models with 4 GB and even 8 GB. The basic Raspberry Pi 4 Model B, which is being sold for the same price as the Raspberry Pi 3 Model B/B+ were on introduction, boasts four times the amount of RAM over what is available on its predecessor. The same goes for the GPU, which is capable of playing back 4K/60FPS H.265-encoded video. While it might not look like much on paper, in the real world there is a noticeable improvement. The CPU has a slightly higher clock speed and has a newer, more efficient architecture than that found in the Raspberry Pi 3 Model B/B+. The Raspberry Pi 4 Model B features an upgraded CPU and GPU. The MagPi magazine published some impressive benchmarks shortly after the Raspberry Pi 4 Model B was released. While the Raspberry Pi 3 Model B+ only showed marginal gains in performance when put up against the vanilla RPi Model B, the Raspberry Pi 4 Model B is a big improvement. The Raspberry Pi 4 Model B is an upgrade in every aspect A USB 2.0 port would in this case again be an unnecessary bottleneck. This has led many in the community to move their installation onto an SSD connected via USB. In general, microSD cards are known to corrupt, especially when data is written to them frequently. That is, of course, if you don't follow my guide on how to purchase the best microSD card for your Raspberry Pi running Home Assistant. Once you start working with a Raspberry Pi, you will likely make the unfortunate discovery that microSD cards aren’t very reliable. This is more important than it might seem at first. As on all Model B boards, there are four in total, but two of them are upgraded to USB 3.0. The Raspberry Pi 4 Model B not only boasts true gigabit Ethernet, but also faster USB ports. Faster USB speeds on the Raspberry Pi 4 Model B Such a drop in speed will be very noticeable, especially when it comes to streaming media. But because of the Raspberry Pi 3’s networking bottleneck, you are limited to around ~225 Mbps instead. I won’t get too technical here, but there are some serious drawbacks to this: You should be expecting ~950 Mbps (megabits per second) from a true gigabit connection. While the Raspberry Pi 3 Model B and Model B+ do feature a gigabit wired LAN (GbE) adapter onboard, they are hampered by the USB 2.0 bus speed. While you might be able to get your hands on a Raspberry Pi 3 for less money, there are some serious drawbacks, which I will lay out next. With that in mind, you might be debating whether to go with a Raspberry Pi 3 Model B/B+ or Raspberry Pi 4 Model B for Home Assistant. You might be better off with a Raspberry Pi 4 Model B kit.Buy from approved Raspberry Pi resellers to get the best price.Where can I find a Raspberry Pi 4 Model B?.Does the Raspberry Pi 4 Model B need a case and fan?.The Raspberry Pi 4 Model B is an upgrade in every aspect.Faster USB speeds on the Raspberry Pi 4 Model B.The Raspberry Pi 3 networking bottleneck.Is the Raspberry Pi 3 Model B+ powerful enough for Home Assistant?.In my opinion, you should only be considering one of the three recommended models. Officially recommended for Home Assistant are the Raspberry Pi 3 Model B, Raspberry Pi 3 Model B+, and Raspberry Pi 4 Model B. A Raspberry Pi 3 Model B was my gateway drug into home automation and self-hosted software and were I not running an Unraid server, I would still be using one today. All Raspberry Pis have a few things in common, making them particularly attractive to Home Assistant: They are small, cheap, quiet, and don't use much electricity. With the launch of the powerful Raspberry Pi 4 Model B, this goes for both beginners and experienced users. The Raspberry Pi (RPi) is the perfect host device for Home Assistant.
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