Čet, 09.02.2012.

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AMD Opteron 6200 serija osvaja nagrade
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HP noviteti za početak 2012.
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Rekordna 2011. za Intel

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AMD Phenom II X6 1055T & MSI 890FXA-GD70 - usklađeni par
10.06.2010.
    « Prev  : Stranica 1 od 7 :  Next »      By ::  Krešimir Matanović 
- AMD Phenom II X6 1055T -

Uz 1090T model, 1055T drugi je za sada predstavljeni šest jezgreni model. Znamo kako su ti procesori evoluirali iz Deneb serije procesora. Novost su dvije jezgre više i Turbo tehnologija, a ti novi procesori nose kodno ime Thuban i predstavljeni su zajedno sa 890FX + SB850 kombinacijom čipseta. Znamo da AMD ne voli govoriti o pojedinačnim komponentama, već o platformi pa tako moramo ponoviti kako je naziv ove nove platforme Leo (u koju ulazi i HD5xxx serija grafičkih kartica), a koja pak spada u Vision platformu.

1055T model ima osnovni takt od 2.8GHz (200x14), što sa uključenim Turbo načinom rada raste na 3.3GHz (200x16.5). 1055T za razliku od 1090T ima zaključan množitelj (osim za Turbo funkciju). Ukoliko u BIOS-u Turbo način rada ugasimo, maksimalni množitelj kojeg možemo koristiti je 14. Oba ova šestjezgrena procesora svoje temelje imaju u Shangai arhitekturi, što znači kako im je cache arhitektura identična Denebima. Svaka jezgra ima 128KB (64KB instrukcijske + 64KB podatkovne) L1 priručne memorije, te 512KB L2 priručne memorije (ukupno 3MB). L3 priručna memorija je dijeljena između šest jezgri, a ukupno je ima 6MB. Thubani su napravljeni u 45-nanometarskoj SOI (silicon-on-insulator) tehnologiji, te podržavaju HyperTransport 3.0. Površina jezgre je 364mm2, a u njoj je smješteno ukupno 904 milijuna tranzistora. To je povećanje od oko 20% u broju tranzistora, te oko 35% u površini jezgre u odnosu na Denebe. Integrirani memorijski kontroler podržava DDR2 i DDR3 memoriju te dolazi sa podrškom za Black Edition memorijske profile koji brzinu DDR3 memorije podižu do 1600MHz (BEMP se aktivira u AOD-u). Thubani su zadržali TDP od 125W.

Ukoliko niste pročitali članak o 1090T procesoru, ponavljamo dio o Turbo tehnologiji. Ona je tvornički aktivirana, a unutar BIOS-a ju je moguće deaktivirati. Preciznija kontrola je moguća sa AMD Ovedrive 3.2.1 softverom, gdje je moguće podesiti i broj jezgri (od 1 do 5) koje će raditi na povišenom taktu. Tvornički je podešeno tako da ukoliko procesor ne koristi svih šest jezgri, a radi unutar TDP-a može podići brzinu tri jezgre za 400MHz u slučaju 1090T procesora odnosno 500MHz u slučaju 1055T procesora. U praksi to funkcionira i kod niže dretvenih aplikacija je vidljivo ubrzanje u radu. Ovo će naravno posebno korisno biti kod igara. Premda to u našim tablicama nećete vidjeti, na primjeru par aplikacija smo isprobali kako Turbo radi i vidljivo je od 5 do 10% povećanje performansi sa uključenim Turbom. Ukoliko u AOD-u odredimo da Turbo radi sa više jezgara u praksi će vrlo teško dostići brzinu od 3.3GHz (kod 1055T modela) jer će već sa četiri jezgre raditi iznad TDP-a.



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