| Blue Spirit |
25.04.2020. 23:13 |
Citiraj:
Autor scarzz
(Post 3400267)
Zanimljivo, onda je razlog zasto se 3000 serija vise grije od prijasnjih izgleda 7nm proces gdje je povrsina same cpu jezgre puno manja nego na 14 i 12nm i stime teze se hladi zbog manje termicke disipacije.
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Da, tako je ...
Jednak broj i veća gustoća tranzistora na 2.8x puta manjoj površini u odnosu na Ryzena prve generacije, pa je teže prenijeti tu toplinu sa malecnog chipleta na hladnjak.
Ryzen 3000 pri 120W heatload-u ima heat-density 1.62W/mm2 - 2.8x puta veći u odnosu na Ryzen prve generacije koji ima heat-density 0.57W/mm2 .
Ryzenu 3000 pri heatloadu od 130W ; 120W heatload-a otic ce na chiplet, dok ostatak od 10W na I/O die tj. 8% ukupnog heatload-a.
Citiraj:
Why is my Ryzen 3000 processor getting so hot? Why are Ryzen 3000 CPUs running hotter than previous generation Ryzen CPUs with the same TDP rating? Is there anything wrong with my cooler?
Because of this design change and the switch to a smaller 7nm manufacturing process, the heat distribution of the overall processor is much different from older 14nm and 12nm based single-chip Ryzen processors with a similar power draw.
Depending on the exact CPU model, its specified TDP value and possibly extended power limits (precision boost overdrive), a single CPU-die can create a heatload of up to 130W easily, whereas the I/O-die usually creates a heatload of about 10W.
Due to the small size of the CPU-die, the heat density (W/mm2) of this chip is very high.
For example, a 120W heatload at a chip-size of 74mm2 results in a heat-density of 1.62W/mm2, whereas the same heatload on an older Ryzen processor with a chip-size of 212mm2 gives a heat-density of just 0.57W/mm2.
This large difference in heat-density is the reason why newer Ryzen 3000 processors become much warmer at similar heatloads than their predecessors
https://noctua.at/en/why-is-my-ryzen...with-my-cooler
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Citiraj:
I believe the larger factor is that Ryzen 3000 is simply very dense. We’re getting to the point where performance gains on new nodes are actually slowing down because the transistors are getting packed closer and closer together while consuming the same amount of power and thus producing the same amount of heat. Less surface area is going to mean less area to spread heat from, and consequentially that hurts thermal performance.
https://adoredtv.com/ryzen-3000-ther...-best-and-why/
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Rzyen 3000 je efikasniji i manje troši od predhodne 2 Ryzen serije procesora, jedino se više grije.
Klikni na SPOILER za prikaz potrošnje i efikasnosti.
Što se tice temperature, takođe mu ne ide u korist to što se chiplet(i) ne nalazi(e) na sredini procesora nego u donjem kutu.
https://i.imgur.com/kBo5W1n.png
https://i.imgur.com/AYzaiGq.png
Zbog gorenavedene gustoće tranzistora i pozicije chipleta, Ryzen 3000 topliji je nego predhodne serije.
Der8auer je napravio RYZEN 3000 OC Bracket Mount koji pomiće AIO hladnjake (vodena hlađenja) niže prema chipletu, i time omogućuje od 5C do max 10C niže - bolje temperature.
https://www.youtube.com/watch?v=JlJDv68fEcM
http://der8auer.com/ryzen-3000-oc-bracket/
https://www.caseking.de/pc-komponent...4&sPartner=888
https://static1.caseking.de/media/im...01_285x255.jpg https://static1.caseking.de/media/im...01_285x255.jpg
Šta reći za kraj nego citirati Druga Brkonju:
Citiraj:
Autor Drug Brko
(Post 3395981)
Po 20-tisući put molimo: prestanite se sekirati oko temperatura :D
Ako prekrdaši, počet će throttlati. Neće se ništa zapaliti, neće ništa izgorjeti. Nije to Duron niti FX Višera da zapali kuću i lokalnu trafostanicu. Iako smo navikli na smeće od AMD-a, Ryzen to nije ;)
Ako vam CPU u igrama ili nekih zahtjevnijim aplikacijama lupa u 75°C, a u leru do 40°C, to je sasvim u redu.
Jedina mana i boljka u cijeloj priči je što su u AMD-u štedili na stock cooleru za 2600 i 3600. Onaj što je išao sa 1600 je bio OK. Ovi nakon njega su drek. To je po meni jedini ali i debeli minus cijele priče jer na 1500+ kn za CPU, MORAŠ računati na aftermarket cooler ako slažeš kištru od nule, tj ako nemaš nešto bolje od ranije.
OK, nije neka para, ali svejedno.
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Njegov kvot potvrđuje i sama NOCTUA
Citiraj:
Furthermore, Ryzen 3000 CPUs are using the rated temperature headroom (up to 95°C) quite aggressively in order to reach higher boost clocks.
As a result, it is absolutely no problem and not alarming if the processor runs into this temperature limit.
The clock speed and supply voltage will be adjusted automatically by the processor itself in order to remain within AMD’s specifications and to prevent overheating.
Due to the higher heat density, higher thermal limits and more aggressive boost clock usage, it is perfectly normal that Ryzen 3000 CPUs are reaching higher temperatures than previous generation Ryzen CPUs with the same TDP rating.
Higher CPU temperatures are normal for Ryzen 3000 processors and not a sign of that there is anything wrong with the CPU cooler.
https://noctua.at/en/why-is-my-ryzen...with-my-cooler
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