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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Intel X25-M G2 - najbolji je postao još bolji
28.10.2009.
    « Prev  : Stranica 1 od 3 :  Next »      By ::  Krešimir Matanović 
- Opis -

U OEM pakiranju sa diskom stiže i ova zgodna naljepnica koja stvarno govori istinu. Nismo pobornici ukrašavanja računala, ili nedaj Bože monitora, ali ukoliko ste izdvojili novac za ovaj disk sa ponosom ju možete zalijepiti. Intel je dakle sa ovim diskom prešao sa 50nm proizvodnog porcesa NAND memorije na 34nm proces. U ovaj SSD, kao što možete vidjeti na slikama ispod, ugrađeno je ukupno 10 Micronovih 29F64G08 64Gb NAND čipova koji ukupno čine 80GB kapaciteta. Sa stražnje strane je kao što vidimo moguće postaviti još 10 čipova te poduplati kapacitet. Ovi MLC čipovi dolaze u VBGA pakiranju sa 100 pinova a radni napon im je 3.3V. Micron inače ovakve NAND čipove proizvodi do gustoće od 256Gb, tj. 32GB po čipu.

 


Kako ne bi sve ostalo samo na poboljšanju NAND čipova, Intel je poboljšao i svoj kontroler. Novi nosi ime PC29AS21BA0, dok je na staroj seriji bio PC29AS21AA. Novi kontroler, baš kao i stari ima 10 paralelnih kanala za komunikaciju sa NAND čipovima, a sada je dobio podršku za TRIM naredbu. Ovo je vrlo važna naredba jer kao što smo već pisali NAND diskovi pate od problema koji se zove Write Amplification. SSD-i funkcioniraju na način da blok podataka brišu tek kada na njega trebaju ponovno pisati. Na taj način se dugotrajnom upotrebom diska nakuplja velika količina "smeća" i disk se znatno usporava. Sa operativnim sistemom i diskom koji podržava TRIM naredbu takva situacija se ne dešava ili je znatno umanjena. Ukoliko vi date naredbu OS-u da izbriše podatke on automatski šalje TRIM naredbu kontroleru diska da to i fizički napravi. Tu dolazimo i do cache memorije koja je povećana sa 16MB (Samsung 166MHz SDRAM) na 32MB (Micron 133MHz SDRAM). Povećanje je bilo nužno upravo zbog poboljšanja koja su napravljena na write amplification algoritmu i većoj LBA (Logical block address) remap tabeli. Sama brzina SDRAM-a je nešto niža no to očito nije ključno za bolji rad.



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