Sub, 11.02.2012.

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Lenovo objavio financijske rezultate
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Intel Solid-State Drive 520
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G.Skill Ares
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Emilio Ghilardi odlazi iz AMD-a
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ASUS DRW-24B5ST
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AMD Financial Analyst Day
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Otvoren prvi Lenovo Exclusive Store u Hrvatskoj
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Shuttle XPC Barebone SZ68R5
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AMD Radeon HD7950
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Na tržištu novi Core i5 desktop i Celeron mobilni procesori
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ASUS HD 7970 DirectCU II
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Bill Gates uručio stipendije hrvatskim studentima
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AIDA64 v2.20
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Nikad slabija prodaja Atoma
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AMD Opteron 6200 serija osvaja nagrade

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AMD Phenom II X6 1090T & ASUS Crosshar IV Formula test
27.04.2010.
    « Prev  : Stranica 1 od 7 :  Next »      By ::  Krešimir Matanović 
- AMD Phenom II X6 1090T -

AMD danas predstavlja svoju novu generaciju procesora kojima je glavna karakteristika činjenica kako imaju šest jezgri. Evolucija je to Deneb serije procesora, od koje se razlikuje po tome što ima dvije jezgre više a donosi i novost u obliku Turbo tehnologije. AMD-ov je to svojevrsni odgovor Intelu, no na ponešto drugačiji način. Kodnog imana Thuban, novi procesori, zajedno sa 890FX + SB850 čipsetima i ATI grafičkim karticama HD5xxx serije čine novu Leo platformu koja nasljeđuje poznatog Dragona, te čini osnovu AMD-ove Vision platforme.

Uz danas testirani Phenom II X6 1090T, AMD predstavlja i nešto sporiji 1055T. Brži radi na 3.2GHz, dok je sporijem radna frekvencija 2.8GHz. U slučaju Turbo načina rada, kojeg ćemo kasnije objasniti, frekvencija se bržem podiže na 3.6GHz a sporijem na 3.2GHz. Oba su procesora temeljena na Shangai arhitekturi, a to znači kako im je cache arhitektura identična Denebima. Svaka jezgra tako 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, baš kao i na Denebima, ima 6MB. Procesori su napravljeni u 45-nanometarskoj SOI (silicon-on-insulator) tehnologiji te podržavaju HyperTransport 3.0. Thuban na površini jezgre od 364mm2 broji ukupno 904 milijuna tranzistora, što 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). Oba danas predstavljena procesora imaju TDP od 125W.

Novost je dakle Turbo tehnologija koja je tvornički aktivirana te ju je moguće deaktivirati unutar BIOS-a. Preciznija kontrola je moguća unutar AMD Ovedrive 3.2.1 softvera, 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 oko 4 - 9% povećanje performansi sa uključenim Turbom. Ukoliko u AOD-u odredimo da Turbo radi sa više jezgara u praksi će vrlo teško dostići brzinu od 3.6GHz jer će već sa četiri jezgre raditi iznad TDP-a.



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