Idle vs Load rest-of-system power data
Posted by Late_Risk5037@reddit | hardware | View on Reddit | 5 comments
Hey, I’ve recently been wondering how much rest-of-system power (display, fans, VRM losses, SSD, DRAM and all other non-processor motherboard components) scales along with load (such as Cinebench) in gaming laptops with APUs or discrete CPU+GPUs.
I’d like to see how the difference between processor power and total system power varies by comparing idle to full CPU load and by measuring those:
- Idle system CPU Package Power + GPU power (HWiNFO)
- Idle total system power (measured through a DC-in powermeter, kill-a-watt or any other method)
- Multi-core load CPU Package Power + GPU Power
- Multi-core load total system power
However, since I am not in possession of a device that would allow me to collect such data, if anybody’s able to measure and share those data along with the laptop and processor models/specifications, it would be greatly appreciated!
FatalCakeIncident@reddit
I might be missing something, but why not just buy one? They're only around £10 for ones with LCD displays and only a couple £ more for WiFi-enabled ones with which you can use manufacturer apps to graph power use over a period.
Wait_for_BM@reddit
This is more a demand list from someone lazy to google or use chatGPT to summerize. They want someone else to do the hard work for the data and hand them on a plate with everything.
Late_Risk5037@reddit (OP)
I’ve only posted this because I haven’t found any relevant and reliable information. I’ve conducted plenty of researches and the only source that exposes both HWiNFO CPU Package Power and system total power occasionally is Notebookcheck. However, they do not mention which power mode they use for their total system power measurements, hence it is impossible to determine to which Package Power they’re comparable to. Also, their measurements are done on the AC-out side and not DC-in, factoring unknown charging brick inefficiency into the equation. All other sources either expose only CPU package power or only system total power. There is rarely a source that exposes both or that measures explicitly system power.
Late_Risk5037@reddit (OP)
I’m looking for data on high power devices such as gaming laptops, as I already have a low power device and its power difference between idle and load is so marginal that there is too much statistical noise for me to analyze.
hardware-ModTeam@reddit
Thank you for your submission! Unfortunately, your submission has been removed for the following reason:
Questions like "Should I buy X" / "What should I buy" / "Help me choose X / Y" are not allowed on r/hardware.
We are also not a tech support or DIY subreddit. If you have such questions, please go to the relevant subreddit (like r/buildapc or r/techsupport).