18.06.2021., 21:10
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#9283
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MadModerator
Datum registracije: Sep 2002
Lokacija: N/A
Postovi: 5,195
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Citiraj:
Autor Yoman
Možda sam ja nešto krivo povezao al ako već postoji Zen3 a napravit će poboljšanu varaijantu koja će se zvati Zen3+ ili kako već, nije li to refresh Zen3-ojke?
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Ni u jednom trenu AMD nije spomenuo Zen 3+ ili refresh. Samo su rekli da će na Zen 3 dodati 3D V-Cache i to samo za high-end modele, znači 12 i 16 jezgrene. Zen 3+ postoji samo u glasinama.
Citiraj:
Autor picajzla0707
Kak si došao na 50-100 usd više cijene?
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Zen3 chiplet je oko 84 mm2, 128 MB Infinity Cachea je oko ~130 mm2. 32 MB Infinity Cachea bi bilo skoro pola Zen 3 chipleta. Pa sad računaj koliko bi AMD to naplatio  .
Citiraj:
On that note, let's talk about the size of the infinity Cache. In short, based on currently available data it would appear that AMD has dedicated a surprisingly large portion of their transistor budget to it. Doing some quick paper napkin math and assuming AMD is using standard 6T SRAM, Navi 21’s Infinity Cache would be at least 6 billion transistors in size, which is a significant number of transistors even on TSMC’s 7nm process (for reference, the entirety of Navi 10 is 10.3B transistors). In practice I suspect AMD has some optimizations in place to minimize the number of transistors used and space occupied, but regardless, the amount of die space they have to be devoting to the Infinity Cache is significant. So this is a major architectural trade-off for the company.
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Izvor.
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