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It depends on what "need" means. I'm pretty sure you can take a 400W TDP Threadripper and run it without active cooling. It will throttle down to run at whate
by jrockway 3y ago
It depends on what "need" means. I'm pretty sure you can take a 400W TDP Threadripper and run it without active cooling. It will throttle down to run at whatever speed (well, TDP) that doesn't fry it. The Raspberry Pi does the same thing.
If your goal is to get the highest score on every benchmark, then yeah, you need active cooling. That has been true on every Raspberry Pi, I think. (I don't remember if the 1 needed active cooling. I did not have any. I also remember it taking over a day to recompile Linux! Still faster than setting up a cross compiler at the time ;)
- KennyBlanken 3y agoThreadrippers use 50W+ at idle, so no, it won't just "throttle down"
- jrockway 3y agoMine uses about 80, but yeah, you can get rid of 80W passively. Consider a 100 watt incandescent light bulb; no fan!
- waterhouse 3y agoAnd how hot does the bulb get? Googling yields "The surface temperature of incandescent light bulbs varies from 150 to more than 250 degrees" (https://www.pacificlamp.com/temperature-of-a-100-watt-bulb.asp https://www.pacificlamp.com/temperature-of-a-100-watt-bulb.a...). Which, googling says, is likely hot enough to damage a CPU.
- vel0city 3y ago150F is like 65C which loads of CPUs run fine at. Going past 212F (100C) is usually where you'll start having problems with a lot of common desktop processors.