271–280 of 1001 posts
I think it’s notable that the chip powering the RP5 is built on a 16nm process. (The RP4 was on 26nm). This is a nearly 10 year old manufacturing process and it’s silly to compare the performance per watt to any Intel or Arm chip on the market today. On such an old node, it’s not surprising that the power draw is so high. Of course an M2 would smoke a RP5 at a much lower power. But the RP5 is 60 bucks!
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Won’t you still need an NTP or a GPS time module unless the RTC has a battery backup? How many applications would you have where timing is critical but you won’t have an external time reference that would be still viable without a guaranteed power backup?
Nobody said anything about not having NTP in the loop! Here's the deal: RPi The first thing we did was deliver 12V down the wire with a high quality power supply. Then we used UBEC buck converter modules (intended for RC quadcopters) to deliver power directly into the Pi via its pins. However, even now you're just chasing physics. There's no way to send a command to all of the Pis to do something right now . Instead,…
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This is pretty bad: "Does Raspberry Pi 5 need active cooling? "Raspberry Pi 5 is faster and more powerful than prior-generation Raspberry Pis, and like most general-purpose computers, it will perform best with active cooling. The Raspberry Pi Case for Raspberry Pi 5, with its integrated fan, is one way to provide this." They pose a question themselves, and don't even answer it. Of course something will perform best w…
Are we reading the same blog post? The post that parent posted literally reads: > "Raspberry Pi 5 has been designed to handle typical client workloads, uncased, with no active cooling".
IMHO, uncased means you're doing maintenance or it's a toy, but it's not a 'production' configuration.
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Nobody said anything about not having NTP in the loop! Here's the deal: RPi The first thing we did was deliver 12V down the wire with a high quality power supply. Then we used UBEC buck converter modules (intended for RC quadcopters) to deliver power directly into the Pi via its pins. However, even now you're just chasing physics. There's no way to send a command to all of the Pis to do something right now . Instead,…
At some point, and considering how cheap they are these days, the simplest option is to add a GPS module if your use-case allows for satellites in decent view.
How cheap is cheap?
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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.
Sadly built on legacy ISA, still ARM instead of the open standard RISC-V. They wasted the opportunity to go RISC-V with Pi 5. I am surprised they still haven't figured out how to accept USB power with higher voltage than 5V. It'll thus continue to be a pain to power. Apparently it isn't all that efficient anymore as evident from their active cooler add-on. It looks like the performance will be similar to the incoming…
TBH the thing I hate most about this category of SBC is the reliance on SD cards. They are both too unreliable to trust and so slow that they often bottleneck the SBC. Buying them is often a crap shoot too, I've purchased cards batches of cards from the supposed reputable manufacturers that were all over the board when benchmarked, and rarely did they hit the claimed speed spec. I would love if there was an alternati…
It's a bit of a shame. What are the alternatives for someone who needs a computer connected to an old CRT TV? Are there other boards with composite video or does one need to get a HDMI->composite converter?
Hi, I've been testing the RPi5 for a few weeks and have written up my results and benchmarks on Twitter. 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.
Are those results available anywhere else?
> 4Kp60 HEVC decoder This is game changer as TV box.