Raspberry Pi Zero 2 W
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Raspberry Pi Zero 2 W
1–10 of 95 posts
Re: Raspberry Pi Zero 2 W
#2I've been testing one for a couple weeks, and a quick rundown on it: it has a quad-core A53, same CPU/SoC core as the Pi 3, with 512 MB of RAM.
This means it can run 64-bit Pi OS, but it is memory-limited and even some of the benchmarks I ran needed extra swap space to complete. But for anything that does run in the 512 MB of LPDDR2 RAM, it is at least twice as fast as the Zero/Zero W, and sometimes 3-8x faster, depending on how things handle threading (4 cores is better than 1!).
My biggest concern is overheating—even at the base 1 GHz clock, it will start to throttle after a few minutes in a case with no airflow or heat sink. You can overclock to 1.2, 1.4, or even in some cases 1.5 GHz, but it starts throttling a lot more quickly unless you have really good cooling.
Re: Raspberry Pi Zero 2 W
#3I've been testing one for a couple weeks, and a quick rundown on it: it has a quad-core A53, same CPU/SoC core as the Pi 3, with 512 MB of RAM. This means it can run 64-bit Pi OS, but it is memory-limited and even some of the benchmarks I ran needed extra swap space to complete. But for anything that does run in the 512 MB of LPDDR2 RAM, it is at least twice as fast as the Zero/Zero W, and sometimes 3-8x faster, depe…
Definitely seems a bit disappointing that 5-6 years after the original Pi Zero there's still only 512MB of RAM. Regardless, I'm excited to see what new projects will become feasible with the extra CPU performance.
I just finished watching your YouTube video, so thanks for providing all of this insight. A new Pi Zero will certainly make small handheld emulators a lot more promising...
Re: Raspberry Pi Zero 2 W
#4Original RPi0 supposedly can idle at 0.4W, where-as the 3 (whose cpu this is based on) idles at >1.5W. It's cool to have this great small package, but this is a very different offering than the first RPi0W.
It's felt really weird seeing so little progress in available low power ARM over the years. Atmel/Microships SAMA5D3 / SAMA5D2 with it's 600 MHz Cortex A5 (2009) still seems like- half a decade latter- one of a rare few genuinely low power Linux running SoC available for purchase/use. I'm forgetting what's available in the Cortex A7 line, which is a little higher power but which still has some very low power chips available for it, & at significantly higher performance ranges. A7 has a lot of chips you can't buy, only available in some tablets & or hard to get wearable chips, but I think there are some good offerings about too. ST has the ~$20 STM32MP1, to name one.
Yet I just see so much non-materialization, non-availability. It feels like the rule. 2015's Cortex A35, 2016's Cortex A32, 2019's Cortex-A34... none of these chips seem to have really materialized in any genuinely available form. There are some off-brand tablets with A35 chips but generally that's about it. The low power segment has been rather ignored.
Re: Raspberry Pi Zero 2 W
#5I've been testing one for a couple weeks, and a quick rundown on it: it has a quad-core A53, same CPU/SoC core as the Pi 3, with 512 MB of RAM. This means it can run 64-bit Pi OS, but it is memory-limited and even some of the benchmarks I ran needed extra swap space to complete. But for anything that does run in the 512 MB of LPDDR2 RAM, it is at least twice as fast as the Zero/Zero W, and sometimes 3-8x faster, depe…
Definitely seems a bit disappointing that 5-6 years after the original Pi Zero there's still only 512MB of RAM. Regardless, I'm excited to see what new projects will become feasible with the extra CPU performance. I just finished watching your YouTube video, so thanks for providing all of this insight. A new Pi Zero will certainly make small handheld emulators a lot more promising...
512mb probably means the power budget it's designed for doesn't get completely stomped.
If you need more memory just get the pi4 and a suitable power brick for it
Re: Raspberry Pi Zero 2 W
#6Earlier quoted context omitted.
Definitely seems a bit disappointing that 5-6 years after the original Pi Zero there's still only 512MB of RAM. Regardless, I'm excited to see what new projects will become feasible with the extra CPU performance. I just finished watching your YouTube video, so thanks for providing all of this insight. A new Pi Zero will certainly make small handheld emulators a lot more promising...
512mb probably means the power budget it's designed for doesn't get completely stomped. If you need more memory just get the pi4 and a suitable power brick for it
According to the launch post, they also couldn't find a single-die 1 GB RAM module, so they couldn't physically install more unless they upped the complexity of the design significantly.
Re: Raspberry Pi Zero 2 W
#7Original RPi0 supposedly can idle at 0.4W, where-as the 3 (whose cpu this is based on) idles at >1.5W. It's cool to have this great small package, but this is a very different offering than the first RPi0W. It's felt really weird seeing so little progress in available low power ARM over the years. Atmel/Microships SAMA5D3 / SAMA5D2 with it's 600 MHz Cortex A5 (2009) still seems like- half a decade latter- one of a ra…
The Pi 3 model A/B have a lot more electronics—check my video and blog post about the Pi for more on power efficiency—the Zero 2 W can run at 0.6W (100 mA) vs the Zero W at 0.4W (80 mA).
Both idle a little higher if you're actively using HDMI and WiFi.
Re: Raspberry Pi Zero 2 W
#8I've been testing one for a couple weeks, and a quick rundown on it: it has a quad-core A53, same CPU/SoC core as the Pi 3, with 512 MB of RAM. This means it can run 64-bit Pi OS, but it is memory-limited and even some of the benchmarks I ran needed extra swap space to complete. But for anything that does run in the 512 MB of LPDDR2 RAM, it is at least twice as fast as the Zero/Zero W, and sometimes 3-8x faster, depe…
64bit is great news (if only because I can target it with the same binaries), but only 512MB of RAM and no EMMC is disappointing, regardless of power budget constraints.
I have been using 3As because of the reduced size (and the full sized HDMI port, which comes in handy), so I hope those get updated to a 4-grade chipset —- I feel that there is a gap between the Compute Module and the A that needs filling.
Re: Raspberry Pi Zero 2 W
#9side rant: it's annoying how you can't buy these things by themselves, usually bundled with crap
I do want this, I think it's taken for granted how easy this thing can connect to a camera. I bought a Teensy/blue/BeagleBone/etc.. thinking "Oh I'll just plug in a camera into it". For the Teensy it won't but maybe the Beagle bone. I was using a single core Pi Zero so it was noticeable doing things like iterating over frames. Granted it can just be poor code on my part/noob in OpenCV.
Re: Raspberry Pi Zero 2 W
#10side rant: it's annoying how you can't buy these things by themselves, usually bundled with crap I do want this, I think it's taken for granted how easy this thing can connect to a camera. I bought a Teensy/blue/BeagleBone/etc.. thinking "Oh I'll just plug in a camera into it". For the Teensy it won't but maybe the Beagle bone. I was using a single core Pi Zero so it was noticeable doing things like iterating over fr…
It seems pretty easy to order just the Pi? I opened the US suppliers, and of the ones that aren't already out of stock, you can:
buy directly from Makerbright: https://makerbright.com/raspberry-pi-zero-2-w-.html
or place an order, which will ship in early November, from:
* Sparkfun https://www.sparkfun.com/products/18713
* PiShop https://www.pishop.us/product/raspberry-pi-zero-w-2/
* CanaKit https://www.canakit.com/raspberry-pi-zero-2-w.html