If the Pi2Bv1.2 had preceded the Pi3B, it would probably have been considered a significant leap forward, instead of being (to most people) a "ho, hum" completely ignorable afterthought. The other-potentially-interesting difference is that the '2837 can run a 64-bit OS, where the '2836 can't. The critical difference when it comes to USB MSD booting is that the '2837 has an improved boot ROM on the SoC that permits setting an OTP bit so that it will look for a bootable USB device. If you check the specs carefully, it looks like the v1.2 is probably about 30% faster because of the higher IPC of the Cortex-A53 CPU cores. After the release of the Pi3B, using the BCM2837, the '2836 was dropped from manufacturing and the Pi2Bv1.2 got the '2837, underclocked to match the '2836 clock. *Usually* the boost from using a smaller process node is exploited to increase the clock speed within the same thermal envelope (TDP), rather than keeping the clock speed the same and reducing TDP. This can be partially offset by making all the parts closer together (using a smaller node), which allows a lower operating voltage which leads to lower power requirement and, thus, less thermal loss. Harder you push the electrons around, the more thermal losses there will be. No doubt that Sony Pencoed management is ecstatic with the way the lines are humming, but it's a trifle annoying at this end of the channel.ĩ00MHz is cooler than 1.2GHz because work is heat. Still.between the Pi400, CM4, and the surge in demand for Pi0s (for ventilator controls) there appears to be a factory crunch. Note that this excludes the just released Pi Pico, as those are assembled at a Sony plant in Japan. One of those is Okdo.Īnother issue is probably competition for manufacturing line time due to the rather large number of new Pi products within the last few months. There are vendor sites that list the Pi2Bv1.2 at list-$35-but also show them as "out of stock". My assumption is that the disruptions to supply chains of the past year is the likely reason for spot shortages and when things get back to what passes for normal, that will all get evened out. They are, at least in theory, in current production. I wonder why 900MHz is cooler? Is it because it balances heat and performance? I checked on my local e-commerce site and the 2B model is about $20 plus or minus $5, but it's not brand new. Maybe it's just that scarcity is more valuable.It's older, but there are fewer of them, and the price is higher. Pi2Bv1.1 boards I can get, but not the v1.2. Since you mention the Pi2Bv1.2.they are very hard to find at the moment, at least at list price (one major vendor has them, but at $42 rather than $35, and since I want to get 10 to 12 of them, makes a difference). There are work arounds in PINN and NOOBS to restrict the card to slower speeds in older versions of the Pi 4B until the final OS is up and running. The SD card improvement allows you to multi-boot using a second or third boot partition while the card is in UHS-I mode. It's only recently that the v1.4 board for the other Pi have really been seen as it makes sense to make just one mainboard. The v1.4 Pi4 board came out with the 8GB Pi4, so red its blog announcement. So, when you got your v1.1 either there was not Pi3 style USB boot. Pi2 v1.2 didn't come out till sometime after the Pi3 was introduced. (Anybody have a recent Pi3B or Pi2Bv1.2 in hand to-possibly-confirm the above about SoC stepping?) No need to proliferate SKUs in that market segment. That is.an underclocked Pi4B without WiFi, even as only a 2GB model. Personally.I'd love to see a "Pi2B2v1.4". After all.why have two different steppings made? Increases volume on the given part and reduces the number of SoCs that need to be stocked. That is, no WiFi (which is why I like them) and the 900MHz default clock, but with the later chip stepping (which, so far as I know, the Pi3B now has as well). I *think* (I don't have a physical example) that they could now be considered a cut down Pi3B+. It also defaults to an underclock of 900MHz, so it runs cooler, as well. That special 2B was more of a 3B-, i believe it was just a pi3 without the wifi chip, being sold as a "pi2" board At the time it was a source of confusion to have 2 different RPi's with different SOC's and features. I always wondered why the 1.2 version of the 2B was not given a new name such as 2B+. Since then I've been paying close attention to hardware versions. I was so concerned about the hardware version because in the Raspberry Pi 2B, when I wanted to boot with USB boot, it was only supported in the Rev1.2 version (there were no 3B or newer models at the time).
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