<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Likely the clock speeds, faster clocks consume more juice usually, unless the working voltage is significantly lower.</div><div class="gmail_default" style="font-family:tahoma,sans-serif">See this comparison, the clock diff between pi2 and pi3 is significant.</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif"><a href="https://socialcompare.com/en/comparison/raspberrypi-models-comparison">https://socialcompare.com/en/comparison/raspberrypi-models-comparison</a></div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Thanks,<br><br>Ron S.<br><br></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 16, 2021 at 5:36 PM Khalid Baheyeldin <<a href="mailto:kb@2bits.com">kb@2bits.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>The plot thickens ... <br></div><div><br></div><div>I have a third old Pi2 B+ as well. It has aluminum heat sinks on the CPU and RAM. <br></div><div><br></div><div>Then, I installed Ubuntu 20.04 LTS on it, and guess what: the temperature is 37.9C.</div><div><br></div><div>I understand that the Pi4 would be cooler because it has a fan, but why does the <br></div><div>Pi3 B+ with the same distro be at 51C, with a copper heat sink, while the Pi2 is at</div><div>38C?<div><br><br></div></div></div>
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