Quote from: _MT_ on April 24, 2020, 13:37:58The problem IMHO isn't whether +50 % in dB corresponds to +50 % in perceived loudness, but the simple fact that it's hard to imagine what a particular dB value sounds like. It's an objective measure but my brain isn't working in dB.
Quote from: william blake on April 24, 2020, 11:08:52Of course that's what matters as far as performance. But the article isn't claiming it's running at 3200 MHz. It's claiming that they use DDR4-3200 modules. You were asking whether they're sure they're really 3200. Not whether they're actually running at 3200 MHz. Personally, I'm not expecting them to.
question is-what frequencies memory working at. i saw dozens of comet lake test info and it was always 2933 or 3200@2933.
same with 2666 in the previous gen.
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nevertheless 50db->75db feels not +50% noise, right?
Quote from: _MT_ on April 24, 2020, 07:59:20question is-what frequencies memory working at. i saw dozens of comet lake test info and it was always 2933 or 3200@2933.
Intel is generally listing recommended frequencies, not maximum. Intel processors can go even higher than 3200. It actually depends on the motherboard/ chipset.
Quote from: _MT_ on April 24, 2020, 07:59:20nevertheless 50db->75db feels not +50% noise, right?
Our ears are logarithmic as well, so to speak (I guess to facilitate huge dynamic range). That's why we use logarithmic unit to describe sound level. And mixing linear with logarithmic would not only be nonsense, but also confusing. For us, doubling the noise in linear terms is hardly perceptible. Despite pressure increasing drastically.
Quote from: william blake on April 23, 2020, 18:29:09Intel is generally listing recommended frequencies, not maximum. Intel processors can go even higher than 3200. It actually depends on the motherboard/ chipset. I believe 3200 was recommended as the best alternative to 2933 when not available. I vaguely recall the problem was the difference between Intel and AMD. Manufacturers wanted to accommodate AMD which led to a shortage of 2933 modules. I'm not talking about Comet Lake in particular but I imagine it's not any worse in this respect. For example, Dell has been offering 3200 modules in their laptops for some time. I think they replaced 2933 modules. But this isn't something I pay too much attention to.
two questions:
-3200 memory? are you sure? afair comet lake is limited to 2933.
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-do you guys realize that decibels are logarithmic? i see +14% over previous aero shouldnt it be +100% or something?
Quote from: alkalwh on April 23, 2020, 18:50:33thank you so much. i should tell this recipe to the manufacturers.
Just undervolt it if you care so much about decibels. Same perfomance but less heat and less cooling fan load. Google it.
Quote from: william blake on April 23, 2020, 18:29:09It can go up till 3200, but Intel hasn't tested compat officially.
two questions:
-3200 memory? are you sure? afair comet lake is limited to 2933.
Quote from: alkalwh on April 23, 2020, 18:50:33Actually, laptops with 10th gen Intel and Ryzen 4000 series can not be undervolted, has far as i know. That feature is locked in the BIOS.
Just undervolt it if you care so much about decibels. Same perfomance but less heat and less cooling fan load. Google it.