Submitted 8 months ago by tinsuke@lemmy.world to technology@lemmy.world
https://www.xpg.com/in/news/1120
Technological feat aside:
Revolutionary heat dissipating coating effectively reduces temperatures by more than 10%
78.5C -> 70C = (78.5 - 70) / 78.5 = 0.1082 = 10% right?!
Well, not really. Celsius is an arbitrary temperature scale. The same values on Kelvin would be:
351.65K -> 343.15K = (351.65 - 343.15) / 351.65 = 0.0241 = 2% (???)
So that’s why you shouldn’t do % on temp changes. A more entertaining version: www.youtube.com/watch?v=vhkYcO1VxOk&t=374s
Shouldn’t the math be degrees over ambient? So 22C would be (56C - 48C)/56C = 14%. Seems like marketable market speak.
I would argue that what makes sense when considering temperature percentages wrt dissipation, is the difference between old and new, divided by the difference between the system at rest and the old temperature.
Which is then a ratio of offsets, rather than a ratio of one offset and an arbitrarily defined origin.
In this case, it is fair to assume the temperature at rest of the system around 292K, or 19C.
Which would give: (78.5C - 70C) / (78.5C - 19C) = 14.29%, or (351.65K - 343.15K) / (351.65K - 292.15K) = 14.29%.
GamersNexus presents their temperature testing in terms of difference from room temperature, so this is probably how they’d do this comparison.
I’m not sure they’d see a reason to cover ram temperature unless it was approaching actual risk of harm or enabled higher clocks, though. Comparing cases or CPU coolers by temperature makes sense. Comparing GPUs when they’re using the same chip and cooling performance is a big part of the difference between models? Sure. But RAM? Who cares.
I mean I also don’t really care about the temperature of my ram unless it prevents it from working. RAM overclocking isn’t that useful, and unstable ram sucks ass.
However, it doesn’t matter what the component is: the original difference over ambient is the amount of heat that operating the component generated. The difference after cooling is essentially the relative amount that specific cooling solution generated. No matter the component. Cooling it further than ambient can be desirable for some use cases, that’s why chillers exist, and that will essentially give out a percentage over 100.
TheBananaKing@lemmy.world 8 months ago
It was zero degrees today, and it’ll be twice as cold tomorrow.