Hijira cibiyar bayanai zuwa DDR5 na iya zama mafi mahimmanci fiye da sauran haɓakawa.Koyaya, mutane da yawa kawai suna tunanin cewa DDR5 sauyi ne kawai don maye gurbin DDR4 gaba ɗaya.Masu sarrafawa ba makawa suna canzawa tare da zuwan DDR5, kuma za su sami wasu sababbiƙwaƙwalwar ajiyamusaya, kamar yadda ya kasance tare da al'ummomin baya na haɓaka DRAM daga SDRAM zuwaDDR4.
Koyaya, DDR5 ba kawai canjin mu'amala ba ne, yana canza tunanin tsarin ƙwaƙwalwar processor.A zahiri, canje-canjen zuwa DDR5 na iya isa ya tabbatar da haɓakawa zuwa dandamalin uwar garken da ya dace.
Me yasa zabar sabon ƙirar ƙwaƙwalwar ajiya?
Matsalolin kwamfuta sun karu da yawa tun bayan zuwan kwamfutoci, kuma wannan ci gaban da babu makawa ya haifar da juyin halitta a cikin nau'ikan sabobin mafi girma, haɓaka ƙwaƙwalwar ajiya da ƙarfin ajiya koyaushe, da saurin agogon processor da ƙididdige mahimmanci, amma kuma yana haifar da canje-canje na gine-gine. , gami da karɓowar kwanan nan na rarrabuwa da dabarun AI da aka aiwatar.
Wasu na iya tunanin cewa waɗannan duka suna faruwa ne a dunƙule domin duk lambobin suna ƙaruwa.Duk da haka, yayin da adadin kayan aikin sarrafawa ya karu, DDR bandwidth bai ci gaba da tafiya ba, don haka bandwidth a kowace ainihin yana raguwa.
Tun da saitin bayanai yana fadadawa, musamman ga HPC, wasanni, rikodin bidiyo, tunani koyo na inji, nazarin manyan bayanai, da kuma bayanan bayanai, kodayake bandwidth na canja wurin ƙwaƙwalwar ajiya za a iya inganta ta hanyar ƙara ƙarin tashoshin ƙwaƙwalwar ajiya zuwa CPU, amma wannan yana cin ƙarin iko. .Ƙididdiga fil ɗin mai sarrafawa kuma yana iyakance dorewar wannan hanyar, kuma adadin tashoshi ba zai iya karuwa har abada ba.
Wasu aikace-aikace, musamman maɗaukakiyar ƙananan tsarin kamar GPUs da na'urori na musamman na AI, suna amfani da nau'in ƙwaƙwalwar ajiyar bandwidth (HBM).Fasahar tana gudanar da bayanai daga kwakwalwan kwamfuta na DRAM da aka tattara zuwa na'urar sarrafawa ta hanyoyin 1024-bit memory, yana mai da shi babban mafita ga aikace-aikacen ƙwaƙwalwar ajiya kamar AI.A cikin waɗannan aikace-aikacen, na'ura mai sarrafawa da ƙwaƙwalwar ajiya suna buƙatar kasancewa kusa sosai don samar da canja wuri cikin sauri.Duk da haka, yana da tsada kuma, kuma kwakwalwan kwamfuta ba za su iya dacewa da na'urori masu maye gurbin / haɓakawa ba.
Kuma ƙwaƙwalwar DDR5, wadda ta fara yin birgima a wannan shekara, an tsara shi don inganta bandwidth na tashar tsakanin mai sarrafawa da ƙwaƙwalwar ajiya, yayin da yake tallafawa haɓakawa.
Bandwidth da latency
Adadin canja wurin DDR5 yana da sauri fiye da na kowane ƙarni na DDR na baya, a zahiri, idan aka kwatanta da DDR4, adadin canja wurin DDR5 ya ninka fiye da ninki biyu.DDR5 kuma yana gabatar da ƙarin canje-canje na gine-gine don ba da damar aiki a waɗannan ƙimar canja wurin sama da fa'idodi masu sauƙi kuma zai inganta ingantaccen bayanan bas ɗin da aka lura.
Bugu da ƙari, an ninka tsayin fashe daga BL8 zuwa BL16, yana ba kowane nau'i damar samun ƙananan tashoshi biyu masu zaman kansu kuma da gaske suna ninka tashoshi da ke cikin tsarin.Ba wai kawai kuna samun saurin canja wuri ba, har ma kuna samun tashar ƙwaƙwalwar ajiya da aka sake ginawa wacce ta zarce DDR4 koda ba tare da ƙimar canja wuri ba.
Ƙwaƙwalwar ƙwaƙƙwarar ƙwaƙwalwa za ta ga babban haɓaka daga sauyawa zuwa DDR5, kuma yawancin ayyukan yau da kullun na yau da kullun, musamman AI, bayanan bayanai, da sarrafa ma'amala ta kan layi (OLTP), sun dace da wannan bayanin.
Yawan watsawa kuma yana da matukar muhimmanci.Matsakaicin saurin ƙwaƙwalwar DDR5 na yanzu shine 4800 ~ 6400MT/s.Yayin da fasahar ke girma, ana tsammanin yawan watsawa zai kasance mafi girma.
Amfanin makamashi
DDR5 yana amfani da ƙananan ƙarfin lantarki fiye da DDR4, watau 1.1V maimakon 1.2V.Yayin da bambancin 8% ba zai yi kama da yawa ba, bambancin yana bayyana lokacin da aka yi murabba'in su don ƙididdige ƙimar amfani da wutar lantarki, watau 1.1²/1.2² = 85%, wanda ke fassara zuwa 15% ceto akan kuɗin wutar lantarki.
Canje-canje na gine-ginen da DDR5 ya gabatar yana haɓaka ingancin bandwidth da ƙimar canja wuri mafi girma, duk da haka, waɗannan lambobin suna da wahalar ƙididdigewa ba tare da auna ainihin yanayin aikace-aikacen da ake amfani da fasahar ba.Amma kuma, saboda ingantattun gine-gine da mafi girman farashin canja wuri, mai amfani na ƙarshe zai fahimci haɓakar kuzarin kowane ɗan bayanan.
Bugu da kari, DIMM module kuma na iya daidaita wutar lantarki da kanta, wanda zai iya rage buƙatar daidaita wutar lantarki na motherboard, ta haka yana ba da ƙarin tasirin ceton makamashi.
Don cibiyoyin bayanai, yawan ƙarfin da uwar garken ke cinyewa da nawa farashin sanyaya damuwa, kuma lokacin da aka yi la'akari da waɗannan abubuwan, DDR5 a matsayin mafi ƙarancin kuzari na iya zama dalilin haɓakawa.
Kuskure gyara
DDR5 kuma ya haɗa da gyaran kuskure akan guntu, kuma yayin da tsarin DRAM ke ci gaba da raguwa, yawancin masu amfani suna damuwa game da haɓaka ƙimar kuskure-biti ɗaya da amincin bayanan gabaɗaya.
Don aikace-aikacen uwar garken, on-chip ECC yana gyara kurakurai-biyu yayin karanta umarnin kafin fitar da bayanai daga DDR5.Wannan yana sauke wasu nauyin ECC daga tsarin gyaran algorithm zuwa DRAM don rage nauyin da ke kan tsarin.
DDR5 kuma yana gabatar da duba kuskure da tsaftacewa, kuma idan an kunna, na'urorin DRAM za su karanta bayanan ciki kuma su rubuta bayanan da aka gyara.
Takaita
Yayin da ke dubawa na DRAM yawanci ba shine abu na farko da cibiyar bayanai ke la'akari ba yayin aiwatar da haɓakawa, DDR5 ya cancanci dubawa sosai, kamar yadda fasahar ta yi alƙawarin adana ƙarfi yayin haɓaka aiki sosai.
DDR5 fasaha ce mai ba da damar da ke taimaka wa masu riko da wuri yin ƙaura cikin alheri zuwa ga mahaɗar, cibiyar bayanai mai daidaitawa na gaba.IT da shugabannin kasuwanci yakamata su kimanta DDR5 kuma su tantance ta yaya kuma lokacin yin ƙaura daga DDR4 zuwa DDR5 don kammala shirye-shiryen sauya cibiyar bayanan su.
Lokacin aikawa: Dec-15-2022
