A Radeon 7750: bayani dalla-dalla, da sake dubawa, gwaji, review

Radeon 7750 graphics katin ne quite m, ko da matsayin na rana, saboda abin da ta ba rana amfani a daban-daban kwakwalwa, jere daga tuta aiki da kuma kammala inji caca matsakaici ikon na'urorin. Wannan katin ne daya daga cikin mafi m kayayyakin a farkon shekarar 2012, kuma ba ya rasa magoya ko a wannan lokacin.

A halin da ake ciki

Saboda gaskiya cewa AMD ta fito da wani gwada da tsada model na 7900 Series, dangane da yin amfani da GPU Tahiti, ta ya iya gamsar da bukatun mafi kwamfuta masu goyon baya. A tsawon lokaci, duk da haka, an yanke shawarar da su saki da Radeon 7770 da kuma Radeon 7750, farashin wanda zai zama dan kadan m ($ 120 nema domin na farko da kuma 100 - a karo na biyu), yayin da sigogi an kiyaye a matakin da ya dace. Dukansu cards suna dogara ne a kan wannan da GPU, wanda aka kera a samar da wuraren yin amfani da TSMC 28-nm aiwatar da fasaha, amma shi ne ya kamata a lura da cewa su ne ɗan daban-daban daga sanyi ra'ayi.

bambance-bambance

A GPU Tahiti ne ba 4,31 biliyan transistors wanda aka shirya a kan wani silicon wafer da ciwon wani yanki na 365 mm ^2. A lokaci guda wani sabon GPU Cape Verde ba biliyan 1.5 transistors a kan wani farantin da ciwon wani yanki 123 mm ^2. A cikin mafi cikakken sanyi cewa an aiwatar a cikin na'ura 7770, da graphics processor azurta wani goma sarrafa kwamfuta raka'a, a kowanne daga abin da hudu vector naúrar ne ba. Kamar wancan kowane raba vector naúrar hada da wani rafi processor 16, abin da kyakkyawan bada 640 rafi sarrafawa dangane da gine Graphics Core Next.

Cape Verde halin da gaban hudu raster ayyukan raka'a, wanda shi ne kawai rabin abin da shi ne ba a Tahiti, game da shi, samar da 16 raster ayyukan a kowane sake zagayowar. Biyu 64-bit masu kula suna da alaka da juna rasterization tubalan ta amfani da na kowa dubawa, game da shi, kyakkyawan samu a 128-bit memory bas.

Features

A AMD Radeon 7750 da aka yi amfani da quite a fun hanyar ƙarshe fita daga cikin processor Tahiti, wanda aka yi amfani da model 7970, wani sabon model na Cape Verde. Tare da kawai 31% da kuma irin zane shader raka'a GPU flagship model, kazalika da 66% na cache memory kuma rasterization tubalan 50%, wannan hade samar da ganiya yi, wanda aka tabbatar da nazarin biyu kera da kuma masu amfani da kansu.

Bisa ga developer, babban burin da aka yi amfani da sabon katin masu amfani iya samun m yi a FPS ƙuduri Full HD (1920x1080). Saboda wannan Radeon HD 7750 1GB amfani Full HD ƙuduri a hade tare da anti-aliasing kamata ƙarshe kai ga FPS zuwa fada, amma a gaskiya, ko da a cikin zamani wasanni a matsakaici saituna amfani da processor iya cimma wani wasan kwaikwayon da cewa shi ne kawai isa ya fara da ɗumbin mafiya wasanni.

Irin katin?

AMD ya saki Radeon 7750, sakawa shi a matsayin samfurin da cewa shi ne samuwa ga manyan rinjaye na yau masu amfani, da kuma a cikin wannan chipset, za ka iya ji dadin kusan duk wani zamani wasanni cewa goyi bayan DirectX 11. Bugu da kari, an sabunta gine Graphics Core Next sa mafi inganci yin amfani da musamman graphics katunan domin magance wata fadi da dama da ba-caca ayyuka, ciki har da video tsarinsa ko data archiving.

A ƙaramin version of 28-nm graphics Cape Verde model guntu al'ada samu wani ƙarin sa-kai akwatin Pro zuwa da sunan da, yayin da a lokacin da idan aka kwatanta da cikakken kwaya shigar a cikin Radeon 7770, sa'an nan a cikin wannan harka akwai wani isasshe manyan yawan gagarumin simplifications, wanda ya taimaka wajen tabbatar da wani yawa karami kudin. The graphics core a cikin taswirar 7750 Radeon rasa biyu CU-kafa block na goma, inda ta rage yawan irin zane raka'a da kuma rafi processor. Number ROP-tubalan kiyaye - 16. GPU ƙwaƙwalwar ajiya da kuma aiki mita rage zuwa 1125 (4500) da kuma 800 MHz, bi da bi, yayin da dubawa aka yanke shawarar ci gaba da 128-bit.

Musamman hankali ya kamata a biya su da cewa sabon na'urar ne ba 1 GB na GDDR5 memory misali, yayin da hankula ikon amfani kada ta kasance fiye da 55 watts, kamar yadda dangane da GPU video katin sanye take da wani connector domin ƙarin wutar lantarki. Ganin cewa reference zane Radeon 7750, wanda aka ci gaba da zanen kaya na AMD ta, shafi yin amfani da monosyllabic mai sanyaya, wannan sabon abu ne quite dace ba kawai ga kasafin kudin 'yan wasa, amma kuma ga wadanda suka fi son in yi amfani da kananan yi aji tsarin NBC.

7750 ko 7770?

Hukumance, saman-karshen katunan dangane da Cape Verde processor manufacturer kira 7770, ya nuna cewa da ya karu mita na GPU. Wannan shi ne quite muhimmanci, kamar yadda kowane mai sayarwa zai sa'an nan nuna a kan marufi da nasu graphics katunan 1 GHz, ko da kuwa ko da suka yi amfani da wani tunani zane jirgin ko a matsayin m model, cikinsa da asali sanyaya tsarin.

A daidai wannan lokaci, tsarin 7750 yana da wani babban yawan bambance-bambance, duk da cewa shi ne ba a cikin wannan guntu. TDP 55 W ce wannan model ba ya bukatar gaban ƙarin ikon haši, wanda shi ne isa ya tabbatar da PCI-E x16 Ramin. Har ila yau, saboda ta tsawon shi ya shafi shigarwa na katin a cikin ɗumbin mafiya yawan m enclosures.

7750 daga Asus

A daidai wannan lokaci kamfanin Asus sakawa da model a matsayin na'urar dan kadan tarwatsa manufacturer, amma CPU Agogon da aka sanya don kara yadda idan aka kwatanta da misali kadai ta 20 MHz, yayin da ƙwaƙwalwar iya aiki a wani tasiri mita 4600 MHz, wanda shi ne kawai 100 MHz wuce sigogi da shawarar da manufacturer ta injiniyoyi. Tun da ma'aikata ya karu mita iya wuya a kira gagarumin, da Radeon HD 7750 iya wuya a kira wani top-karshen, domin irin wannan overclocking ne kusan imperceptible a kan aiwatar da ƙaddamar real-duniya aikace-aikace, duk da haka saboda gaskiyar cewa wannan model tana wurinta a kasuwa kamar yadda "overclocked" to shi ma yana da mafi girma kudin.

Idan ka yi magana game da sauran bayani dalla-dalla, babu manyan bambance-bambance idan aka kwatanta da reference samfurin a Asus Radeon 7750 ne ba yanzu. Musamman da hankali ne kawai a mallakar tajirai sanyaya tsarin da ya kamata a biya, wanda damar m ware da samfurin tsakanin babban adadin irin wannan mafita.

kit

Bigiren bayarwa ya hada da dukan zama dole kasafin kudin tsarin, watau, shi ya hada kawai ne ga waɗanda kaya da ake bukata ga al'ada aiki na totur:

• faifai cewa ya ƙunshi dukan zama dole direbobi da kuma utilities.
• Umarnin a kan yadda za a kafa da kuma aiki da wannan katin.
• misali adaftan DVI-to-VGA.

Wannan sa ne da ɗan daban-daban daga cewa, ya miƙa a cikin Radeon HD 6850, amma har yanzu shi ne cikakken daidai da kasafin kudin matsayi na na'urar.

ƙarin fasali

Hakazalika kamar yadda a cikin tunani samfurin, wani sa na musaya ga nuna so image aka bayar a matsayin mai tashar jiragen ruwa HDMI 1.4a da DVI-I. Ganin cewa bundled tare da katin kuma samar da wani ƙarin adaftan, ba ka da wani matsaloli domin haɗa da ita saka idanu ƙarin jini nuni ko wani majigi.

Ambatar da Radeon HD 6850, shi ne ya kamata a lura kuma cewa dangane da 7750 mafita samar da ikon yin aiki tare da LCDs ko zaune a yanki da matsananci-high ƙuduri, wanda shi ne quite muhimmanci ga mafi yawan jama'ar ta yau masu amfani, masu irin wannan na'urorin ya bayyana more kuma mafi akai-akai. Har ila yau kada ka manta da cewa ta hanyar amfani da fasahar AMD Eyefinity 2.0 Wannan totur kuma ba ka damar gama har zuwa shida zaune a yanki, amma ga fiye da uku na'urorin zai ma bukatar yin amfani da ƙarin aiki da adaftan na'urorin samar da al'ada image fitarwa.

biyan bashin

A buga kewaye hukumar da aka yi a kan wani baki PCB, yayin da zane da kuma layout na abubuwa a kan shi da cikakken maimaita misali reference samfurin saki tare da AMD na'ura mai. Students karfafawa sanya ta "2 + 1 lokaci" ta amfani da musamman sauki PWM mai kula daga kamfanoni Anpec Electronics. Kamar yadda ya bayyana a sama, wannan katin da aka ba sanye take da haši don ƙarin iko, sakamakon shi a load yanayin, ta ikon amfani ne kasa da 75 watts.

Mutane da yawa sau da yawa kwatanta wannan model tare da Radeon HD 6790. A cikin hali na sabon GPU ta yanke shawarar ba da su sun hada da ikon hada mahara da adaftan na'urorin don gudanar da hadin gwiwa lissafin graphics CrossFireX gada, amma da goyon bayan wannan fasahar da aka har yanzu bayar a shirin matakin .

zane

A reference model katin yana da kyawawan saba look kamar yadda kyawawan kama da mai sanyaya da hukumar amfani da cikakken-sized version of yi HD 6770. A sanyaya ne halin da wani musamman sauki yi, na samar da ga wani lebur guda-Ramin heatsink cewa cools kawai GPU. Ga katin da ciwon fairly suna fadin TDP na 55 Watts, wannan adadi ne quite m, amma shi ne ya kamata a lura da cewa akwai kuri'a na gyare-gyare Radeon 7750, da halaye na wanda sun hada da kasancewar wani babban sanyaya tsarin.

biyan bashin

Kamar yadda aka ambata a sama, a cikin wannan yanayin babu wani da wani ƙarin iko, da ƙarfi tsarin ana amfani hudu bulan. GPU Power ne sarrafawa da wani biyu-lokaci mai kula, wanda ba ya samar da yiwuwar daidaitawa da shirin ƙarfin lantarki, alhãli kuwa da ikon video da aka sarrafawa da duka biyu na biyu guda-lokaci rinjãya.

Memory kanta ne aka buga ta hanyar amfani da kwakwalwan kwamfuta daga kamfanin HYNIX, da maras tasiri Agogon mita ne 5 GHz. A wannan kwakwalwan kwamfuta da aka yi amfani da a kan Radeon 7770 katin.

ƙarshe

Kamar Radeon HD 6790, da 7750 model ne shigarwa-matakin bayani da cewa da yawa masu amfani iya zama shigarwa tikitin a cikin Sphere na zamani wasanni. A kai tsaye gasa da na'urar ne Model 650 daga GTX GeForce, kuma a cikinta duka biyu kayayyakin da'awar zama, ya dauki wuri a cikin babban video a full yarda da ci gaba da wasa ciki. Amma a gaskiya, domin shekaru biyu kayayyakin sun muni a yi idan aka kwatanta da wadanda fasaha da bukatun, wanda ake kafa a wasan a lokacin da suka saki, don haka da cewa su dacewar fara bayyana ne kawai a cikin 'yan shekaru.

Reserve yi a magangara mafi ƙasƙanci yiwu TDP - da aiki da aka sanya a gaban masana'antun AMD kafin katin da aka bayar Radeon 7750. A isasshe tsanani ya kai gare shi kaya ikon game da 55 W, da kuma ikon amfani ne kasa da 3 watts a shiru yanayin, yayin da ƙarin wadata ba bukata. Daga cikin 6000 jerin katunan kama TDP ba a model 6650 da kuma 6670, yayin da NVDIA samar da wani gasar model a cikin nau'i na GeForce GT440, cewa shi ne a fili kasa rauni cards. Duk wannan shi ne cimma ta hanyar amfani da m aiwatar da fasaha na 28 nm.

Kamar wancan, to date katin ne, sosai, mafita ga taron low-saka farashi kwakwalwa. Mafi yawan zamani wasanni da shi za a iya kiyaye a wani m ko talakawan matakin, wanda shi ne riga quite isa ga da yawa 'yan wasa. Hakika, kwatanta shi da ci-gaba da na'urorin yau ne kawai m, tun da sun kasance ba kawai a karkashin matsakaicin bukatun, amma kuma tare da nan gaba.