ATI Radeon HD 4850: Izici, izici kanye nokubuyekeza

Njengabakufanelekele okunye ihluzo namafutha GeForce 8800GTS futhi GeGorce 9800GTX kusukela NVIDIA kusukela edume umkhiqizi Canadian ngo-2008 kwaba ATI Radeon HD 4850. Lokhu ihluzo adaptha Ukucaciswa kobuchwepheshe cishe akahlukile izimbangi zayo ngqo, futhi izindleko lalilincane kakhulu. Ngenxa yalokho, Nvidia inkampani waphoqeleka ukuba aphinde acabange inqubomgomo Ngentengo ukwenza imikhiqizo kufinyeleleke kalula. Ngenxa yalokho, abathengi nethuba ukuthenga ihluzo ikhadi eninamandla ngenani ethengekayo njengoba kusukela ATI, futhi kusukela NVIDIA.

umkhiqizo Ingemuva

Ngemva kokuphuma uchungechunge ihluzo ikhadi Radeon HD 3000 yinkampani yaseCanada ATI kuyinto iminyaka cishe unyaka nesigamu akazange athumele imikhiqizo olusha. Ukuze umise okwesikhashana alethwe bomnotho ngo-2007, futhi ngenxa yalokho, kakhulu kwanciphisa isidingo ukusebenza ihluzo izixazululo. Ekugcineni, abanikazi ubudala baphoqeleka ukuba adayise unjiniyela lesibili ngobukhulu futhi nomkhiqizi isiqophi chips, futhi usebenze njengomahluleli umthengi, AMD. Kwakukuleli wave futhi waqala ukuthengisa ATI Radeon HD 4850 nenguqulo ikhiqize kakhudlwana yesixazululo - kuba HD4870. Izindleko kungemuva izimbangi ngqo "green" ikamu bebelokhu ephansi futhi ekugcineni lizinga lekuphumelela izicelo kakhulu - cishe ezifanayo.

On-chip isiqophi ikhadi wayesalokhu isicelo ATI Radeon HD 4850. logo Driver "Catalyst" uchungechunge futhi ababenayo ekuqaleni logo umkhiqizi Canadian. Kodwa-ke, njengoba software update, isishintshanisiwe yi-AMD. Ngenxa yalokho, esikhathini esizayo, lo mkhiqizo isibe kakade eyaziwa ngokuthi i-Radeon HD 4850 AMD sika.

niche izixazululo

ATI Radeon HD 4850 lwakhiwe ngesisekelo omunye ukuyedlula Semiconductor GPU 2008. Ngakho, ezibekiweko lobuchwepheshe wayevunyelwa ngaleso sikhathi ukuba cishe zonke izinkinga. Ngenxa yalokho, uye igxile ukusetshenziswa indlela yokwakheka engcono abacula amageyimu amakhompyutha kwaleso sikhathi, noma ihluzo workstations. kwakuthiwa ke, kungashiwo futhi babamba lichaza ekwakheni kanye workstations noma multimedia PC, kodwa kulokhu umthamo wayo alisetshenziswa ngokugcwele, futhi le ndlela kusukela iphuzu kwezomnotho umbono ayizange kulingane ngokuphelele. Ukuze izinhlelo ezifana kukhona imikhiqizo engaphansi kahle ethulwa ngezindleko eziphansi.

Izinketho

Izingxenye kulo mkhiqizo lalithé:

• Ikhadi ngokwayo efakwe Ukupholisa uhlelo.

• Imfundo manual, lewaranti kulekelelwa.

• CD-ROM kukaMoya, umshayeli nezinye isofthiwe ekhethekile.

Abanye abakhiqizi phambili ukukhuthaza yokuthengisa umkhiqizo indawo evamile amakhadibhodi ibhokisi kwi metal ethwele icala. Likhomba premium yayo ngokwemvelo. ukusabalalisa Greater lo mkhuba akuzange wathola, kodwa iqiniso lokuthi, kusadingeka ukuba uqaphele.

izindlela wokusebenza

Imodi eziyisisekelo ukusebenza umkhiqizo - kuyinto sekhadi njengengxenye PC. Kodwa lokhu isixazululo futhi isekela ATI ubuchwepheshe nokuphathelene ngokuthi "Crossfire." essence yayo itholakala iqiniso ukuthi izikhala ezimbalwa PCI Express 16x format setha amaningi ihluzo namafutha (ngokuvamile kuleli cala 2 noma 3). Basuke okwengeziwe axhumene ngu adapters ekhethekile. Ngenxa ngokucubungula ulwazi ingcaca sabiwa phakathi amaningi ihluzo accelerators, futhi kungenzeka ukuthola nokwanda okuphawulekayo isivinini.

Amapharamitha ihluzo namafutha

Ikhodi igama chip, umnyombo Radeon HD 4850 lo ATI, - RV770 Inkomba PRO. It senziwa 55 nm inqubo ubuchwepheshe, lolo ngesikhathi sokuhlwanyelwa yikona okungcono. Kulesi chip Semiconductor kwezigidi ezingu 956 izakhi Transistor isetshenzisiwe. Babephethe ukushisa kuleli cala zazilingana Watts 110. Inombolo izilimi ziqhathaniswa odlule ezimbili izizukulwane amakhadi anda izikhathi ezingaphezu kuka-2 kusukela izingcezu 320 kuya ku-800. Kuyinto lokhu isixazululo ubunjiniyela bavunyelwe ukwandisa ijubane chip. Futhi, izakhiwo zalezi izilimi iye kabusha.

Iphuzu lesibili - nokwenze isibalo ukuthungwa amayunithi kusuka 16 kuya 40. Kodwa inani ROP amabhlogo (rasterization nemisebenzi) engashintshwa futhi lihlala at 16. Memory-bandwidth zazilingana kuleli cala, 64 GB / s. I-adaptha ngokwayo iye elungiselelwe ukusebenza ne ibhasi PCI Express 2.0 imodi. Ungayisebenzisa imodi 1.0, kodwa kuzonciphisa isivinini. Kodwa kule umbadlana shoka 3.0 "bottleneck" ngeke babe ihluzo namafutha. Ngakho-ke, umsebenzi ifana ihluzo namafutha kuyinto kwemisebenzi yoMnyango kulesi sici ngokuhlanganyela umbadlana, elisebenza ngokuqinile e PCI Express imodi v. 2.0.

inkumbulo

Ngu ukusetshenziswa RAM chips GDDR3 ejwayelekile waboshwa ATI Radeon HD 4850. 512MB - ke inani RAM ungakwazi avame kungatholakala ngokuhlanganyela chip. Kuyaphawuleka izinguqulo bungavami sezihambile more lesi sinqumo, okuyinto vele kuqede nge 1 GB RAM. inkumbulo kancane ibhasi kuleli cala sasifana nokuthi okuqinile, ngisho ngezindinganiso lanamuhla 256 izingcezu.

Cishe imingcele ezifanayo kwakungamadodana amadala ihluzo amakhadi lo mugqa - HD 4870. Kodwa lokho nje uhlobo inkumbulo kulokhu bekulokhu kakade GDDR5. Lokhu sekwenze kwaba lula ukuthola ephakeme iwashi ngesivinini kanye namazinga ukusebenza inkumbulo. Ukuze uqhathanise, HD 4850 lesi silinganiso kwaba MHz 2000 kuphela, kuyilapho HD 4870 - 3600 MHz.

umshayeli

Isimo nzima ekuqaleni yokuthengisa kwaba nje umshayeli. Ngokusobala, program Canadian awunaso isikhathi ngibalethe ekupheleleni, futhi ngenxa yalokho kube namaphutha ahlukahlukene ngokufuna amathoyizi agijime kwi PC nge ATI Radeon HD 4850. Umshayeli iye phambili elicwengiweyo, yonke amaphutha ezikhonjwe iqedwe. Kulokhu, lo ATI logo isofthiwe salandelwa AMD. ukulungiswa okunjalo, ngokuba impendulo yomsebenzisi, inqobo operation esitebeleni kakhulu ezifana ihluzo adapters. Futhi kuzo zonke izinguqulo ezinkulu kohlelo lokusebenza "windose" ngesikhathi - XP "Vista" futhi "7". Awu, kancane isofthiwe uhlelo ubuye kuleli cala, ayisekho Kufeza indima ebalulekile, futhi kungenziwa wagqoka-32-bit OS ukuhlela kabusha, noma ngisho 64-bhithi.

Isimo ne ukusheshisa

ezingaba Overclocking kule chip Semiconductor kwakukuhle kakhulu. Kodwa ukwenza operation ezifana kwakudingekile ukuhlomisa PC enamandla ugesi (hhayi ngaphansi kuka 750 W). Futhi, ihluzo namafutha kufanele ifakwe i Ukupholisa uhlelo eziphambili. Ngakho-ke amakhadi nge yokwenziwa ukushisa usinki ohlelweni base Ukupholisa is hhayi Kunconywa ukuba overclock. Futhi imikhiqizo kuphela ngesethi nokuphathelene nazo Coolers kungenziwa ngale nqubo. Ngenxa yalokho, usebenzisa ATI Overdrive Umbuso yayingatholakala esikhundleni inhlanganisela 625 MHz (i-chip ihluzo) kanye 2000 MHz (i-RAM) coupling 685 MHz kanye 2150 MHz, ngokulandelana. Lokhu olwengeziwe isivinini amaphesenti 8-9. Sithuthukise i namafutha enjalo kwakungenakwenzeka. Ngokuyisisekelo, uma unqobe kumkhawulo 700 MHz, lokhu namafutha isibe nesincintisana ngqo amadala imodeli HD 4870. Kusukela iphuzu Ngenxa ukumaketha isimo enjalo ukumane kungamukeleki.

Ukuncintisana imikhiqizo ku ophumayo iphuzu

ATI Radeon HD 4850 ihluzo ikhadi ngesikhathi ikhishwe, njengoba kuphawuliwe ngaphambili, laliyisakhiwo esincintisana ngqo imikhiqizo ezimbili kusukela NVIDIA. Lokhu GeForce 8800GTS futhi GeForce 9800GTX. Esimweni sokuqala, lo silinganiso phakathi imikhiqizo babe kokubili intengo kanye nokusebenza. Futhi isivinini ke kwenzakala ngisho mhlawumbe ngaphezulu umkhiqizo ATI. Kodwa kungenjongo kwimodi ejwayelekile. Endabeni isixazululo ukusheshisa NVIDIA offset lokusalela emuva futhi ngezinye izikhathi ngisho kuqhume phambi. Kodwa GeForce 9800GTX ucabangela imininingwane yayo lobuchwepheshe zazikhiqiza ngaphezulu ihluzo accelerators, futhi ngenxa yalokho, abiza ngaphezulu. Umehluko speed amaphesenti 7-10, lapho ngisho Overclocking ayikuvumeli isinxephezelo.

Isimo zokwenziwa ukuhlolwa

Kwimodi ejwayelekile HD 4850 e zokwenziwa PC MARKU 2006 ukuhlolwa kunikeza 12.200 amaphuzu. Uma overclocked ukuze amaza futhi 685MGts 2150MGts ngokulandelana, kungenzeka ukuthola i eyengeziwe eziyinkulungwane amaphuzu. Ngenxa yalokho kokusebenza kwalo kulokhu bazohlolwa kudala njengoba 13.200 amaphuzu. Ngakwelinye ihlangothi, GeForce 880GTS kuleli cala, ngisho version eziyisisekelo kakade inikeza 13.500 amaphuzu. Nokho, uma ngisho lokhu overclocked ukuze 820MGts / 1890MGts, sekuvele wathola 15,000 amaphuzu. Ngenxa yalokho, ikhambi test zokwenziwa kamakhi "green" kubonakala akukhetha. Kodwa ukusebenza langempela kulezi amaphuzu virtual ngokuvamile abanalo maqondana. Lamagugu kuphela ngezinga eliphezulu isofthiwe nokwenza. Kulokhu, umshayeli phezu ihluzo ikhadi ATI Radeon HD 4850 awulona "avala" kulo test.

Amathuba e imidlalo langaleso sikhathi

isimo Ngokushesha ezahlukene zokusebenza amageyimu ngokuya ukusebenza kunoma iyiphi line umkhiqizo ATI Radeon HD 4850 Series. Umshayeli kuleli cala kakade musa ukudlala indima ebalulekile enjalo.

Asiqale nge Enemy Territory Ukuzamazama neMpi. Kulo mdlalo, ukusebenza Ukubukeza kwethu iqhawe fumana ngisho 9800GTX. I-HD 4850 inombolo okukhipha izithombe ngomzuzwana ilingana 86. Ngenxa yalokho, 9800GTX, lesi silinganiso kuyinto 81, kuyilapho 8800GTS - zonke 71 la manani ezivumelekile mode 1680 x 1050. Nge ukwanda isinqumo kuze kube 1920 × 1200 mkhuba uyaqhubeka, futhi izinkomba kuyoba babe ngokulandelana 72, 66 no 58.

Isimo siyefana ne "Life Isigamu 2". Ukuze mode Inani lokuqala kuyoba ulingana 111, 103 89, futhi owesibili - 88, 82 no-71 isimo kancane washintsha ngo-Perseus Igunya. Khona-ke umholi buya isixazululo 9800GTX nezinkomba 184 (i-1680 x 1050) kanye 149 (i-1920 x 1200). Izinkomba HD 4850 kukhona 162 kanye 127 ngokulandelana. Nokho, 8800GTS bucishe bulingane - 157 kanye 129.

Cishe efanayo futhi Call of Duty 4. Kulokhu amagugu zilingane 9800GTX 82 futhi 72 HD 4850 - 79 67, futhi 8800GTS - 72 futhi 62. Umehluko emkhatsini endaweni yokuqala neyesibili kuleli cala, ongabalulekile ngokuya ukusebenza , kodwa intengo bayehluka kakhulu.

Ngo Tournament ngiyaphupha 3 futhi isimo sishintshe kakhulu. Umholi usuphinde HD 4850 nezinkomba 121 (i-1680 x 1050) kanye 97 (i-1920 x 1200). Ibe isilandelwa - 9800GTX c izinkomba 117 no 92. I last - 8800GTS nge 102 no-80 ngokulandelana.

A mkhuba efanayo baqhubeka izicelo kakhulu amageyimu. Ngokuvamile kwedlula HD 4850, siqala kancane kuphela, okuncintiswana naye yayo ngqo lapho sibhekene 9800GTX. Ngaphezu kwalokho, lesi simo libaphatheleni isofthiwe angu-70. Kodwa ku asele 30% kwaba kakade 9800GTX umholi. Kodwa kufanele kuphawulwe ukuthi umehluko yayingabalulekile ngakho kakhulu. Uma le chip esenziwa 9800GTX akusebenzi ngesikhathi inqubo lobuchwepheshe (65 NM) futhi wayene ukushisa ephakeme (156 Watts). It kuvela ukuthi ukuthengwa akukhetha kakhulu ngaleso sikhathi kwaba nje HD 4850.

design Special yale ikhadi

Onjiniyela ngaleso sikhathi namanje nomakhi Canadian ngemiphumela azuzwe banquma ukungayisebenzisi nhlobo ayeke. Bona ikhiphe ukuguqulwa eziphambili ngaphezulu namafutha - ATI Radeon HD 4850 X2. Isiqalo X2 iphuzu yokuthi lena ezimbili-GPU ihluzo ikhadi. Ngakho, yona ifakwe isistimu Ukupholisa ethuthukisiwe, imininingwane yayo lobuchwepheshe, ngisho manje ongaxazulula kakhulu izinkinga. Futhi emikhiqizweni enjalo ikhona saziso 1 GB RAM. Izindleko ze-namafutha enjalo kuyabiza kakhulu. Okuwukuphela omubi ukuthi yileso sikhathi engaqala ngaso ngemuva kokuqala yokuthengisa, - isofthiwe nokwenza okubi. Akuwona wonke amathoyizi "like" kwaqala. Kodwa update okunye onjiniyela isofthiwe evela AMD kakade isinqumo ngale ndaba.

izindleko

Kakhulu, izinga eliphezulu kakhulu waphenduka ATI Radeon HD 4850. Imininingwane ke iyamangalisa ngempela, futhi imiphumela yokuhlolwa ibonisa ngejubane elikhulu. Ngenxa yalokho, umkhiqizo esinjalo singeze sibe eshibhile futhi ezingabizi. Kodwa ngisho esimweni zomnotho ezinzima kakhulu, ATI wakwazi ukugcina ukulinganisela yentengo kanye nokusebenza futhi unikele namafutha ukuba abe namandla enani yelinyenti $ 199. Kodwa lokhu ukuguqulwa eziyisisekelo ngakho baziswa. Kamuva kwakunezinguqulo kakhudlwana ukuthuthukela, izindleko okungase ukufinyelela ngisho 320 zamaRandi. Kodwa kulokhu, umsebenzisi ithola i isixazululo ngcono nge high ukushisa usinki amaza okusezingeni eliphezulu. Futhi, uma lokhu kungenzeka, siqala kancane, Overclocking ihluzo namafutha.

Izibuyekezo

I ethile abalulekile zonke izixazululo umugqa ATI Radeon HD 4850 Series kwaba isofthiwe ababuthakathaka. Kaningi, umshayeli umkhiqizo kwaholela yokuthi ezinye imidlalo isiqophi ezisebenza ongajwayele kwi hardware efanayo. Lawa kwakungamadodana "Outliers" kusukela umdlalo, kanye "okokuqandisa", futhi ukuvela esibukweni "black", nakuba computer wasebenza emihle. It is kuveziwe ukubuyekezwa wabanikazi i namafutha ezinjalo. Kodwa-ke, njengoba nathi ibuyekezwe, zonke izinkinga zaxazululeka, futhi esikhathini esizayo awunankinga Kwavuka Radeon HD 4850 lo ATI.

Windows 7 umshayeli luthuthukiselwa ngendlela efanayo. Ngokushesha nganikezwa inhlangano "eluhlaza" nge nemibi ezithile, ngaleso sikhathi kakade AMD onjiniyela ekupheleleni. Inzuzo enkulu yalo mkhiqizo kwaba isilinganiso "amanani / ukusebenza". At izindleko 199 zamadola, lo mkhiqizo ongancintisana cishe ukulingana ezibizayo GeForce 8800GTS noma ngisho GeForce 9800GTX.

Imiphumela

Noma yiziphi izinguquko Yokuvukela niche ihluzo accelerators kungukuthi esethula Radeon HD 4850 lo ATI futhi umfowabo omdala ngaphakathi the bombo of HD 4870. Lena ushintsho yokuziphendukela kwemvelo isizukulwane esedlule sakwa-imikhiqizo siqala nge sina ukucutshungulwa nemingcele lobuchwepheshe ngesinqumo. Kodwa ukuvela lezi zixazululo ingxenye premium, "wanikina esincintisana» ATI yenkampani ngqo - NVIDIA. Ngenxa yalokho, zokugcina elibuyekeziwe inqubomgomo Ngentengo kakhulu ukunciphisa izindleko ihluzo accelerators kule ingxenye. Lokhu bayozuza kuphela umthengi yokugcina ubani ithuba uthole isixazululo iyashelela ngentengo encishisiwe. Futhi ungakhetha ihluzo ikhadi ngisho noma kusukela "red" ikamu (ie, ATI / AMD), noma "green» (NVIDIA).