AMD Ryzen 9 3900XT review

Posted on: 07/08/2020 09:44 PM

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3600X 4.75Ghz on a single core

Posted on: 07/09/2020 07:34 AM

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Quite interesting... Zen2 architecture is capable of these massively high clocks... just not in the entire chip at the same time.

I wonder what kind of design error they did that prevents that ?
Maybe the power delivery substrate layers are insufficient to provide consistent energy to all the cores at the same time, or it just gets way too hot internally.

Here's hoping that Zen3 can actually do ALL-core overclocks of 4.5+ with ease !

Posted on: 07/09/2020 11:48 AM

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Another reason these benchmarks do not make sense to me. XT performed a bit lower in the time spy CPU score, but it overall beats the X variant in the total score.

How is that if it performs a bit slower yet it is considered higher performing in the overall score?

Less means more now??

Posted on: 07/09/2020 11:54 AM

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My 3900X runs hot as hell honestly.

My 3960X is cool as a cucumber in comparison. This is with a 480mm radiator, 280mm and a 120mm on my 3900X. It can hit 80C while folding. GPU (5700XT) doesn't touch 60C on the same loop.

Typical temps are around 31-65 under regular loads and not folding and or doing crazy intensive CPU work.

Posted on: 07/09/2020 01:26 PM

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this launch should be a good way for AMD to increase prices for each CPU segment imho

4000 series will be 50-60$ more expensive at launch against their 3000 counterparts when those were released, example 199$ for r5 3600 against 249$ r5 4600

The weird thing is 3800XT (no cooler) is almost same price with 3900X (wraith prism!!!), disabling 4 cores 3900x will be much faster than 3800XT due to having 64MB of l3 cache