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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Sapphire HD4850X2 & Gigabyte HD4870 1GB
05.02.2009.
    « Prev  : Stranica 1 od 6 :  Next »      By ::  Krešimir Matanović 
- Sapphire Radeon HD4850X2 2GB -

Baš kao i na nedavno testiranom HD4830 modelu, Ruby je na naslovnici kutije u koji je smješten i ovaj 4850X2 model. Na samoj kutiji kao i uvijek kupci će naći sve osnovne informacije o proizvodu, te softveru koji je Sapphire pakirao sa ovim modelom. S obzirom da je kartica ogromnih dimenzija, takva je i kutija. Kako bi bila adekvatno zaštićena, kartica je pakirana u antistatičku vrećicu te je smještena u pjenastu masu.

S obzirom da je riječ o high-end modelu, takav je i bundle. Kabela i adaptera ima pregršt, a tu su: dva PCIe Power kabela (jedan 6 pinski i drugi 8 pinski), S-Video-Component kabel, S-Video-Chinch adapter, CrossFireX mostić, DVI- HDMI adapter, VGA-DVI adapter, Sa softverske strane tu su licence CyberLinkovih DVD Suite-a i PoewrDVD-a, te Futuremarkovog 3DMark Vantage-a. Kao i uvijek tu su i opširne korisničke upute.

Već po kutiji smo vidjeli kako je riječ o glomaznoj kartici a kada smo ju izvadili iz kutije vidjeli smo kako je veća i čak od HD4870X2 modela. Sistem hladnjaka je sasvim drugačiji nego kod HD4870X2 modela, a posebnost su i čak četiri DVI-I izlaza na koje je moguće priključiti isti taj broj monitora. Uz to tu je i S-Video izlaz. Kao što znamo sastavljena je od dva RV770PRO čipa, pa shodno tome podržava tehnologije kao i ostatak HD48xx serije. To bi značilo da podržava DX10.1 (SM4.0), CrossFireX, Unified Video Decoder 2 i ATi PowerPlay tehnologije. Sučelje je PCIe 2.0, a kako bi zadovoljili energetske zahtjeve potrebno je prikopčati jedan 6-pinski i jedan 8-pinski PCIe Power konektor.

Kada odvijemo vijke koji drže hladnjake, te podignemo "haubu" prvo što primjećujemo je dugi plavi PCB. Na njemu su smještena dva RV770PRO čipa koji su identični kao i na HD4850 modelima. Riječ je dakle o 55nm čipovima od kojih svaki ima 800 stream procesora koji kucaju taktom od 625MHz. Ukoliko želite više znati o tehnologiji koja stoji iza RV770 čipova svakako provjerite ovaj članak. Čipove kao i na HD4870X2 modelu veže PLX-ov PCIe 2.0 bidirekcionalni preklopnik. Baš kao i na HD4870X2 modelu i na ovoj kartici se nalazi 2GB memorije, no ovaj puta u GDDR3 izvedbi. Memorija radi na 993MHz (efektivno 1986MHz) a komunicira preko 256-bitne sabirnice (tj. 2 x 256 bita). Kako bi čitav ovaj sistem radio na optimalnim temperaturama brinu se dva masivna zasebna aluminijska hladnjaka sa bakrenim jezgrama. Svaki hladnjak je prisilno hlađen i ventilatorima koji znaju poprilično bučiti prilikom većeg opterećenja. Memorijski čipovi su hlađeni zasebnim aluminijskim hladnjacima u obliku traka, a i naponski dio ima svoj alu blok.



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