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ASUS EN7600GT/2DHT/256M - nova kraljica srednje klase
01.05.2006.
    « Prev  : Stranica 1 od 7 :  Next »      By ::  Krešimir Matanović 
- Uvod i opis -
nVidia je oduvijek znala napraviti odličnu mainstream grafičku karticu. Da ne idemo daleko u povijest, sjetimo se samo odlične GF4 Ti4200 koja je žarila i palila tržištem dugo vremena. Njen veliki uspjeh i popularnost nije bilo lako pratiti i prva sljedeća koja je to uspjela je bila 6600 serija koja je i danas aktualna i još uvijek tražena. Po nVidijinim tvrdnjama čak je preko milijun 6600 GPU-a isporučeno na tržište. Tako je 6600 dominirala tržištem zadnje dvije godine i iako je 7xxx serija predstavljena još polovicom prošle godine tek je sada, rekli bi, konačno došlo vrijeme za njenu zamjenu - pred nama je era 7600 kartica. Razlog ovolikom dugom čekanju je vjerojatno i taj što je G73, za razliku od G70 dosta različite arhitekture od svojeg prethodnika. Tako je došlo vrijeme i da se i mi pozabavimo novom pridošlicom iz nVidije, a na test smo iz ASUS-a dobili model EN7600GT koji je bio opremljen sa 256MB vrlo brze GDDR3 memorije.

ASUS-ovo pakiranje - King Kong u prvom planu

Iza cijele priče o 7600GT karticama krije se G73 čip. Pa što stoji iza tog imena? Riječ je o procesoru koji je napravljen u 90-nanometarskom proizvodnom procesu od strane TSMC-a i koji nasljeđuje izvrsni NV43, koji je, da se podsjetimo bio izrađen u 110-nanometarskom procesu. Smanjenjem proizvodnog procesa bilo je moguće povećati broj cjevovoda i pri tom zadržati sličnu površinu jezgre, koja je kod G73 čipa 126mm2 i sadrži 177 milijuna tranzistora. Tako za razliku od NV43 koji je imao 3 vertex shadera, 8 texture/fragment shader cjevovoda i 4 ROP-a (Raster Operations Pipeline) , novi G73 ima 5 vertex shadera, 12 texture/fragment shader cjevovoda i 8 ROP-ova. Iz ovih brojki i izračuna proizlazi da G73 ima dvostruko veću ALU (aritmetičko-logička jedinica) snagu od NV43 čipa.

7600GT - nova kraljica srednje klase

Brzina G73 procesora nije drastično porasla u odnosu na NV43, i ona je na našoj testnoj Asusici iznosila 560MHz. Ono što jest značajno poraslo je brzina memorije koja se ugrađuje na 7600GT kartice, a ona iznosi 700MHz (1.4GHz DDR), dok je na 6600GT modelima ona iznosila 500MHz (1GHz). Širina memorijske sabirnice je ostala ista, tj. 128 bita (2x64 Crossbar). Inače, ugrađena memorija je Samsungova i deklarirana je na 1.4ms.

126mm2 užitka

Kako je arhitektura G73 čipa vrlo slična onoj G70 čipa, tako u potpunosti iskorištava SM3.0, te donosi nVidijin Transparency AA u srednji segment grafičkih kartica. Dakle, G73 u potpunosti podržava tehnologije kao što su CineFX 4.0 Architecture (DirectX9, SM3.0, do 16 tekstura po prolazu, FP32 preciznost itd.), nVidia High Precision Dynamic Range Technology (FP16 podrška kroz cijeli pipeline, FP16 frame buffer), Intellisample 4.0 (Native Multi-sampling FSAA, Transparent Multi-Sampling and Super-Sampling, 16x Anisotropic Filtering itd.), UltraShadow Technology, NVIDIA SLI Support, NVIDIA Pure Video Technology (MPEG2 i WMV9, integrirani HDTV izlaz, itd.) i Advanced Display options (nView Multi Display, Single i Dual-Link TMDS, itd.). Potrebno je naglasiti i kako nosi epitet "Built for MS Vista".

Bakar i mali vrlo bučni ventilator

Kartica koju smo dobili na test izgleda indentično nVidijinoj referentnoj - zeleni PCB, one-slot bakreni hladnjak sa zelenom naljepnicom i zelenim ventilatorom, dual link DVI izlaz (rezolucija do 2560x1600) i jedan 7-pinski HDTV mini-din izlaz. Jedina razlika je ASUS naljepnica na sredini ventilatora. Maleni ventilator je vrlo tih kada smo u 2D okruženju, no čim pokrenemo nešto u 3D-u zavrti se vrlo brzo i pri tom stvara popriličnu buku, no s druge starne i vrlo dobro hladi neveliki GPU. Zbog izraženije buke će vjerojatno većina korisnika nakon nabavke ove kartice poželjeti zamijeniti hladnjak nekim tišim i po mogućnosti jednako učinkovitim. PCB je malenih dimenzija naspram onoga na divovskoj 7800 seriji ili pak ATi-evoj X1800 i X1900 seriji. Kartica ne zahtjeva dodatno napajanje jer joj je dovoljan "sok" koji dobiva iz PCIe utora.

ASUS bundle

ASUS-ov bundle nije naročito bogat i sastoji se od dva DVI-VGA adaptera, S-video-RGB kabela, kratkim manualom i tri CD-a od čega su dva ASUS-ova sa driverima i aplikacijama, a treći je demo King Kong igre. Mogli su oni to i bolje.



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