211–220 of 1001 posts
Earlier quoted context omitted.
Yeah my intel atom NUCs run at 5W idle and 10W load and they're a ton faster than a pi 4. Probably a pi 5 too. It's not very impressive. And that's with a real SSD.
NUCs cost hundreds of dollars, though. And they are probably 8x bigger, if you start stacking Pis.
I'm happy that they're upgrading the pi, but it's not exactly lightweight computing in terms of power (they recommend a 27W PSU) or performance/watt (see: your cell phone) To me the charm of the raspi ecosystem was always in giving you a very low power, "always on, almost no power draw" linux environment. Oh well, I guess there's always the older versions or the zero for that.
The worst part about it is they require a nonstandard, USB-C standard-violating proprietary power brick that does 5V5A. None of your 100W Anker or Apple power bricks will supply this. They'll do 12V3A, 12V5A, 20V5A, but not 5V5A. Yet another piece of nonstandard USB-C equipment.
This is also very uncool, since powering it through the GPIO header with a capable PSU won't trigger the PD signal and makes it impossible to draw any meaningful current through USB? I hope this blockade can be worked around in the boot config.
I'm happy that they're upgrading the pi, but it's not exactly lightweight computing in terms of power (they recommend a 27W PSU) or performance/watt (see: your cell phone) To me the charm of the raspi ecosystem was always in giving you a very low power, "always on, almost no power draw" linux environment. Oh well, I guess there's always the older versions or the zero for that.
At 27W that is a strong pass vs a NUC. If I go with a low power x86 NUC, I can run all software on it, and probably insert a SSD + additional RAM, for probably ~15W.
Difference being if your workload now demands it, the increased power rating allows faster race to idle, and overall gain in power efficiency.
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Did you read the blog post? :) "Raspberry Pi 5 consumes significantly less power, and runs significantly cooler, than Raspberry Pi 4 when running an identical workload. However, the much higher performance ceiling means that for the most intensive workloads, and in particular for pathological “power virus” workloads, peak power consumption increases to around 12W, versus 8W for Raspberry Pi 4."
Alright so 27W with heavy peripheral draw then? But 12 W still means it'll be drawing 2.4 amps instead of 1.6 when a random process decides to 100% it. I guess we can always underclock it. The real unanswered question is, does it finally have a damn sleep mode so it can save power when idle.
Based on my experience with previous Pis, I bet you’ll be able to drop that even further by turning off unused board components at boot time.
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This device has a PCIe 2.0 x1 connector now, so NVMe drives should be usable now. The Compute Module 4 series have been able to support eMMC chips, so I don't see why they wouldn't continue with the 5 if/when it shows up
> This device has a PCIe 2.0 x1 connector now, so NVMe drives should be usable now. It's a fiddly FPC connector though, which isn't a great contributor to mechanical robustness.
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PoE requires a few beefy components that would blow the board size (and BOM) up quite a bit, for a feature probably only 10-20% of users require. I'm happy with a separate accessory, but wish they could've kept compatibility with the previous versions.
The idea that even 10-20% of users would power their Pis with PoE seems wild to me. Seems like a much smaller niche to me (even though I'm one of those people). Anyway, I have been wondering whether a headless-oriented SKU wouldn't make sense. Pay for the PoE BOM by jettisoning the video output.
"Wireless" speakers (they'd be networks speakers then) / home assistant devices / media players and whatever else should always be attached with a network cable, so just power them over PoE. I'm still annoying that the AppleTV isn't PoE enabled. That's not a device I'd use over WiFi anyway.
I'm happy that they're upgrading the pi, but it's not exactly lightweight computing in terms of power (they recommend a 27W PSU) or performance/watt (see: your cell phone) To me the charm of the raspi ecosystem was always in giving you a very low power, "always on, almost no power draw" linux environment. Oh well, I guess there's always the older versions or the zero for that.
Yeah my intel atom NUCs run at 5W idle and 10W load and they're a ton faster than a pi 4. Probably a pi 5 too. It's not very impressive. And that's with a real SSD.
I'm happy that they're upgrading the pi, but it's not exactly lightweight computing in terms of power (they recommend a 27W PSU) or performance/watt (see: your cell phone) To me the charm of the raspi ecosystem was always in giving you a very low power, "always on, almost no power draw" linux environment. Oh well, I guess there's always the older versions or the zero for that.
At 27W that is a strong pass vs a NUC. If I go with a low power x86 NUC, I can run all software on it, and probably insert a SSD + additional RAM, for probably ~15W.
anyone could tell me how did you use raspberry pi?
One for Stratum 0 NTP server (using GSP module with PPS)
One for Home Assistant
One for monitoring the solar power at my cabin, using a 4G USB device to send data home.
The Home Assistant runs on a 4B, the others are using 3B's and a clone (NanoPi Zero).
Got some Pi 4's that I use for various Linux experimentation and such. Sometimes I find it easier to get a Pi 4 up and running than a VM, and other times I need the GPIOs.
https://x.com/alexellisuk/status/1707296079849365650?s=20
This is so much quicker for clusters, servers and headless use, that I don't think I'd consider buying any more RPi4s myself.