ATI Radeon HD 4850: Halayen, fasali da kuma sake dubawa

Cancanta madadin graphics totur GeForce 8800GTS da GeGorce 9800GTX daga NVDIA daga almara Kanad m, a 2008 shi ne ATI Radeon HD 4850. Wannan graphics adaftan fasaha bayani dalla-dalla a aikace ba ya bambanta daga ta kai tsaye fafatawa a gasa, da kuma kudin da shi da yawa karami. A sakamakon haka, NVDIA kamfanin da aka tilasta sake ta farashin siyasa da kuma yin kayayyakin more m. A sakamakon haka, masu saye da damar saya da wani iko graphics katin a wata mafi araha farashin kamar daga ATI, kuma daga NVDIA.

samfurin Fage

Bayan exiting da graphics katin jerin Radeon HD 3000 Kanad kamfanin ATI ne kusan daya da rabi shekaru bai yi biyayya sabunta kayayyakin. Ga wani ɗan hutu kawo tattalin arziki da rikicin, a 2007, da kuma a sakamakon, rage muhimmanci da bukatar yi graphics mafita. A karshen, tsohon masu aka tilasta sayar da na biyu mafi girma a-developer da manufacturer na video kwakwalwan kwamfuta, da kuma ya amsa kamar yadda mai saye, AMD. Sai ya zama a wannan kalaman kuma fara sayar da ATI Radeon HD 4850 kuma mafi m version daga cikin bayani - shi ne HD4870. Cost a kan bango kai tsaye fafatawa a gasa, daga cikin "kore" sansanin sun kasance m da matakin na yi a mafi aikace-aikace - kusan m.

A-guntu video katin da aka har yanzu amfani da ATI Radeon HD 4850. logo Driver "Kara kuzari" series ma asali yana da logo na Kanad m. Amma sa'an nan, a matsayin software update, an maye gurbinsu da AMD. A sakamakon haka, a nan gaba, wannan samfurin ya riga ya zama da aka sani da Radeon HD 4850 AMD ta.

alkuki mafita

ATI Radeon HD 4850 da aka gina a kan tushen da daya daga cikin mafi m semiconductor GPU 2008. Haka kuma, da fasaha bayani dalla-dalla ya aka yarda a lokacin warware kusan duk wani matsala. A sakamakon haka, ya aka mayar da hankali a kan yin amfani da abun da ke ciki na mafi kyau Yin caca kwakwalwa na lokaci, ko graphics workstations. rubuce, shi ma zai iya shiga a cikin abun da ke ciki da kuma workstations ko multimedia inji mai kwakwalwa, amma a cikin wannan hali ta iya aiki ne ba da cikakken amfani, da kuma wannan dabarar daga wani tattalin arziki da ra'ayi ba gaba ɗaya wajaba a kansa. Domin irin wannan tsarin ne kasa m kayayyakin an gabatar a wani ƙananan kudin.

Zabuka

Aka gyara a cikin wannan samfurin ya kamar haka:

• A katin kanta shigar da sanyaya tsarin.

• Umarni manual, katin garanti supplemented.

• CD-ROM rabawa, da direba da kuma sauran musamman software.

Wasu masana'antun karfafa tallace-tallace na samfurin maye gurbin saba kwali akwatin a kan wani karfe dauke da harka. Yana nuna ta premium yanayi. Greater yaduwar wannan aiki bai samu ba, amma da cewa shi ne har yanzu dole a lura.

halaye na aiki

Basic yanayin da aiki na samfur - ne katin shaida matsayin wani ɓangare na wani PC. Amma wannan bayani kuma tana goyon bayan hukumar ATI mallakar tajirai fasaha da ake kira "gwabza." Its ainihi ta'allaka ne da cewa da dama ramummuka PCI Express 16X format kafa mahara graphics totur (yawanci a cikin wannan hali 2 ko 3). Suna kara da alaka da juna ta musamman da adaftan na'urorin. A sakamakon aiki na mai hoto bayanai da aka raba tsakanin mahara graphics accelerators, kuma shi ne mai yiwuwa a samu wani gagarumin karuwa a gudun.

Sigogi graphics totur

Code sunan wani silicon guntu, da zuciyar na Radeon HD 4850 da hukumar ATI ne, - RV770 index PRO. Yana da aka sanya a kan 55 nm aiwatar da fasaha, wanda a lokacin shi ne mafi kyau. A wannan semiconductor guntu 956 miliyan transistor abubuwa da aka amfani. A zafi fakitin ne a cikin wannan yanayin ne daidai to 110 watts. Number of sarrafawa kamar yadda idan aka kwatanta da baya biyu ƙarnõni na cards ya karu fiye da sau 2 daga 320 zuwa 800 guda. Yana da wannan aikin injiniya bayani a yarda wa muhimmanci ƙara gudun da guntu. Har ila yau, da gine-gine na wadannan sarrafawa an redesigned.

Batu na biyu - kara yawan irin zane raka'a daga 16 zuwa 40. Amma da yawan ROP tubalan (rasterization ayyukan) ba ya canja, ya zauna, a 16. Memory bandwidth ya daidaita a cikin wannan harka, 64 Gb / s. A adaftan kanta da aka gyara aiki tare da bas PCI Express 2.0 yanayin. Za ka iya amfani da shi a cikin wani yanayin na 1.0, amma shi zai rage gudu. Amma a cikin motherboard tare da goyon bayan 3.0 "bottleneck" shi zai yi graphics totur. Saboda haka, aikin kama wani graphics totur ne mafi kyau duka a cikin wannan girmamawa a tare da tare da motherboard, wanda aiki tsananin a PCI Express yanayin v. 2.0.

memory

By da amfani da RAM kwakwalwan kwamfuta GDDR3 misali yana kurkuku ATI Radeon HD 4850. 512Mb - shi ne adadin RAM za ka iya mafi sau da yawa a iya samu a tare da tare da silicon guntu. Muhimmanci kasa na kowa da mafi m versions na wannan hukunci, wanda ya riga ya kammala tare da 1 GB na RAM. Bit memory bas ne a cikin wannan yanayin amounted zuwa wani m, ko da a yau ta nagartacce 256 ragowa.

Kusan m sigogi sun mazan graphics katunan wannan layi - HD 4870. Amma shi ke kawai da irin memory a cikin wannan hali ya riga ya kasance GDDR5. Wannan sanya shi yiwuwa a samu hakan Agogon gudu da kuma ƙarfin aiki matakan memory. Don kwatanta, da HD 4850 wannan darajar da aka sani kawai 2000 MHz, yayin da HD 4870 - 3600 MHz.

direba

A halin da ake ciki wuya a farkon tallace-tallace ne kawai wani direba. A fili, Kanad shirye-shirye ba su da lokacin da za a kawo su kammala, kuma a sakamakon akwai daban-daban kurakurai a cikin m toys gudu a kan inji mai kwakwalwa tare da ATI Radeon HD 4850. A direba ma ya kasance m mai ladabi, da kuma duk na gano flaws shafe ta. A wannan yanayin, da ATI logo a cikin software da aka maye gurbinsu da AMD. Irin wannan gyare-gyare, don mai amfani feedback, bayar da mafi barga aiki na irin graphics da adaftan na'urorin. Kuma a kan dukkan manyan versions na tsarin aiki "windose" a lokacin - XP "Vista" da "7". To, da kadan daga cikin tsarin software ne ma a cikin wannan hali, ba taka wata muhimmiyar rawa, kuma za a iya sa a kan 32-bit OS gyare-gyare, ko ma a 64-bit.

A halin da ake ciki tare da hanzari

Overclocking yuwuwar a cikin wannan semiconductor guntu ya quite mai kyau. Amma yin wannan aiki ya zama dole domin ba da PC iko da samar da lantarki (ba kasa da 750 W). Har ila yau, graphics totur dole ne a sanye take da wani ci-gaba da sanyaya tsarin. Saboda haka katunan tare da m zafi kwatami da kuma tushe sanyaya tsarin ba da shawarar a overclock. Kuma kawai kayayyakin da mallakar tajirai sa na Coolers za a iya hõre wannan hanya. A sakamakon haka, ta amfani da ATI overdrivers mai amfani za a iya samu maimakon a hade da 625 MHz (ga wani graphics guntu) da kuma 2000 MHz (ga RAM) hada guda biyu 685 MHz da kuma 2150 MHz, bi da bi. Wannan ƙarin 8-9 kashi gudun. Bugu da ari inganta irin wannan totur ya gagara. Da gaske, idan shawo kan iyaka na 700 MHz, wannan totur ya zama kai tsaye gasa ga mazan model HD 4870. Daga cikin ra'ayi na sayar da irin wannan halin da ake ciki ne kawai unacceptable.

Gasar kayayyakin a kan mafita batu

ATI Radeon HD 4850 graphics katin a lokacin da ta saki, kamar yadda muka gani a baya, shi ne mai kai tsaye gasa na biyu kayayyakin daga NVDIA. Wannan GeForce 8800GTS da GeForce 9800GTX. A farkon yanayin, da parity tsakanin kayayyakin kasance biyu a farashin da kuma cika. Kuma ga gudun shi ya juya ga zama ma fi zai fi dacewa a samfur daga ATI. Amma shi ne a al'ada mode. A cikin hali na hanzari bayani NVDIA biya diyya backlog da kuma wani lokacin har fashe a gaban. Amma GeForce 9800GTX la'akari da fasaha bayani dalla-dalla kasance mafi m graphics accelerators, kuma a sakamakon, kudin more. Bambanci a cikin gudun ne 7-10 kashi, wanda ko da overclocking ba da damar ramuwa.

A halin da ake ciki a roba gwaje-gwaje

A al'ada mode HD 4850 a roba PC MARK 2006 gwajin ba 12.200 maki. Idan an overclocked zuwa mitoci, kuma 685MGts 2150MGts da bi, yana yiwuwa a samu wani ƙarin dubu maki. A sakamakon ta yi a cikin wannan hali shi za a kiyasta a farkon 13.200 maki. Bi da bi, GeForce 880GTS a cikin wannan harka, har ma da ainihin version riga samar da 13.500 maki. To, idan har wannan overclocked zuwa 820MGts / 1890MGts, shi ya riga ya samu 15,000 maki. A sakamakon haka, da roba gwajin bayani daga "kore" manufacturer alama fin so. Amma ainihin cika wadannan rumfa maki sau da yawa da babu aboki. Wadannan dabi'u kawai nuna wani babban mataki na ingantawa software. A wannan yanayin, da direba a kan graphics katin ATI Radeon HD 4850 ne kawai ba "kulle up" ga wannan gwajin.

Dama a wasanni na cewa lokaci

Matuƙa, daban-daban halin da ake ciki tare da caca aikace-aikace cikin sharuddan yi a wani samfurin line ATI Radeon HD 4850 Series. Direba a cikin wannan harka riga ba wasa irin muhimmiyar rawa.

Bari mu fara da yankin magabta Quake War. A cikin wannan wasan, wasan kwaikwayon na mu review na gwarzo riske ko 9800GTX. A HD 4850 ne yawan fitarwa images da biyu ne daidai 86. A bi da bi, 9800GTX, wannan darajar ne 81, yayin da 8800GTS - duk 71 wadannan alkaluma suna da inganci ga wani yanayin na 1680 x 1050. Tare da karuwa a ƙuduri har zuwa 1920 × 1200 Trend ya ci gaba, da kuma Manuniya zai zama da daidai da 72, 66 da 58.

A halin da ake ciki shi ne kama da "Rabin Life 2". Domin na farko yanayin darajar zai zama daidai da 111, 103 da kuma 89, da kuma na biyu - 88, 82 da kuma 71. Dan kadan ya canja halin da ake ciki a Perseus umarni. Sa'an nan shugaba ya zama 9800GTX bayani tare da Manuniya 184 (for 1680 x 1050) da kuma 149 (for 1920 x 1200). Manuniya HD 4850 ne 162 da kuma 127 bi da bi. To, kusan daidai 8800GTS - 157 da kuma 129.

Kusan guda da kuma kiran wajibi 4. A wannan yanayin da dabi'u daidaita 9800GTX 82 da kuma 72 ga HD 4850 - 79 da kuma 67, da kuma ga 8800GTS - 72 da kuma 62. A bambanci tsakanin na farko da na biyu wuri a wannan yanayin, bai isa a kula cikin sharuddan yi , amma farashin da suka sãɓã wa jũna a muhimmanci.

A gaskiya ba Tournament 3 sake halin da ake ciki ya canjãwa da cika fuska. Jagoran sake zama HD 4850 tare da Manuniya 121 (for 1680 x 1050) da kuma 97 (for 1920 x 1200). A na biyu wuri - 9800GTX c Manuniya 117 da kuma 92. A karshe - 8800GTS da 102 da kuma 80 bi da bi.

A irin wannan Trend ci gaba a mafi caca aikace-aikace. Mafi sau da yawa outpaced HD 4850, albeit kawai dan kadan, ta kai tsaye gasa a fuskar 9800GTX. Bugu da ƙari, wannan halin da ake ciki riko ga kashi 70 cikin dari software. Amma a cikin sauran 30% shi ya riga wani shugaban 9800GTX. Amma ya kamata a lura da cewa bambancin ba haka ba ne muhimmi ma. Lokacin da wannan guntu da aka yi ta 9800GTX shuɗe a lokacin da fasaha tsari (65 nm) da kuma yana da wata babbar zafi (156 watts). Sai dai itace cewa mafi fin so sayen a lokacin ne kawai HD 4850.

Musamman zane na wannan katin

A injiniyoyi a lokacin har yanzu a Canada manufacturer na samu sakamakon yanke shawarar ba a daina. Su fito da wani karin ci-gaba canji na totur - ATI Radeon HD 4850 x2. Prefix x2 na nuna gaskiyar cewa wannan shi ne wani dual-GPU graphics katin. Haka kuma, shi ne sanye take da inganta sanyaya tsarin, da kuma ta fasaha bayani dalla-dalla, har ma a yanzu za su iya warware mafi yawan matsalolin. Har ila yau, a kan irin kayayyakin ne m ba 1 GB na RAM. Cost na irin wannan totur ne yafi tsada. The kawai korau cewa shi ne karo na farko bayan da farkon tallace-tallace, - bad software ingantawa. Ba duk toys "kamar" shi ya fara. Amma a kara karshe na software injiniyoyi daga AMD riga ya yanke shawarar wannan batun.

kudin na

Sosai, high quality juya ATI Radeon HD 4850. Bayani dalla-dalla yana da gaske da ban sha'awa, da kuma gwajin sakamakon nuna wani babban gudun. A sakamakon haka, irin wannan samfurin ba zai iya zama cheap da kuma araha. Amma har a cikin wani sosai wuya tattalin arziki halin da ake ciki, ATI ya gudanar ya ci gaba da ma'auni na farashin da yi da kuma bayar da totur ga mulkin demokra darajar $ 199. Amma wannan asali gyara aka haka gõdadde. Daga baya akwai karin ci-gaba versions, da kudin da zai iya isa ko da 320 daloli. Amma a cikin wannan harka, da mai amfani na'am da inganta bayani da high quality zafi kwatami da kuma high mitoci. Har ila yau, a lokacin da wannan shi ne wani yiwuwar, albeit kadan, overclocking graphics totur.

reviews

A key drawback dukkan line mafita ATI Radeon HD 4850 Series kasance mai rauni software. Popular sau da yawa, da samfurin direba ya kai ga cewa, wasu video wasanni ba kullum sarrafa a kan wani m hardware. Waɗannan su ne "outliers" daga wasan, da kuma "daskarewa", da kuma fitowan da "black" allo, ko da yake kwamfuta yi aiki lafiya. An nuna a sake dubawa na masu irin wannan totur. Amma sa'an nan, kamar yadda muka sabunta da software, duk da matsalolin da aka warware, da kuma a nan gaba babu matsaloli tashi tare da Radeon HD 4850 da ATI.

Windows 7 direba ne ɓullo da a irin wannan hanya. Ba da da ewa aka gabatar "raw" taro tare da wasu disadvantages, wanda aka sa'an nan riga ya kawo AMD injiniyoyi zuwa kammala. Babban amfani da wannan samfurin ya da rabo daga "farashin / yi". A da kudin 199 daloli, wannan samfurin iya gasa a kusan daidai da tsada GeForce 8800GTS ko ma wani GeForce 9800GTX.

sakamakon

Duk wani sauyi da canje-canje a cikin alkuki na graphics accelerators ba ya gabatar da Radeon HD 4850 da ATI da wana a fuskar HD 4870. Wannan sigar juyin canji na baya ƙarni na kayayyakin, albeit tare da tsanani aiki fasaha sigogi na yanke shawara. Amma fitowan wadannan mafita a cikin premium kashi, "ya girgiza» ATI kamfanin ta kai tsaye gasa - NVDIA. A sakamakon haka, na karshe bita ta farashin da manufofin da significantly rage kudin da graphics accelerators a cikin wannan kashi. Wannan zai amfana kawai karshe mabukaci wanda yana da wata damar samun wani ya fi dacewa bayani a rage farashin. Kuma za ka iya ko da zabi wani graphics katin, ko daga "ja" sansanin (ie, ATI / AMD), ko "kore» (NVDIA).