Bambanci tsakanin DDR4 da DDR5 RAM yana cikin sauri da iya aiki
Dangane da ƙungiyar da ke da alhakin ƙimar ƙwaƙwalwar kwamfuta da aka sani da JEDEC, ƙarni na gaba na ƙwaƙwalwar ajiyar bazuwar damar DDR5 ("RAM") zai ninka na DDR4 RAM na yanzu lokacin da aka sake shi.
JEDEC ta ba da sanarwar cewa za ta kammala ka'idodin DDR5 wani lokaci a cikin 2018, kuma ƙungiyar ta ce DDR5 za ta ninka bandwidth da yawa akan DDR4, kuma ta zo tare da haɓaka ingantaccen ƙarfin lantarki.
Kodayake ma'aunin zai zama hukuma a shekara mai zuwa, sabon ƙarni ba zai kasance a shirye don masana'antun ba har sai bayan 2020.
Yana da kyau a lura cewa an kammala ma'aunin DDR4 a cikin 2012, amma bai kasance ba sai 2015, lokacin da masu sarrafawa da SoCs dole ne a sabunta su don tallafawa.
Menene DDR5
GDDR5 (Dual Graphics Data Rate Version 5) SDRAM wani nau'in katin zane ne na DRAM mai girma wanda aka ƙera don aikace-aikacen kwamfuta mai girman bandwidth.
Kamar wanda ya gabace shi, GDDR4, yana dogara ne akan GDDR5 SDRAM DDR3 wanda ke da layin bayanai sau biyu fiye da DDR2 SDRAM, amma kuma ya ƙunshi GDDR5 na manyan abubuwan prefetch 8-bit kama da GDDR4. GDDR5 SGRAM ya bi ka'idodin da aka ambata a cikin ƙayyadaddun GDDR5 ta JEDEC. Yana amfani da ƙirar ƙirar prefetch na DDR 8N don babban aiki da aiki wanda za'a iya saita shi don gudana cikin yanayin 32 x ko 16 x (clamshell) da aka gano yayin fara na'urar. GDDR5 2 jigilar jigilar kayayyaki yana da kalmar agogo 32-bit a kowane zagaye (WCK) rubuta bayanai zuwa/daga fil ɗin I/O. Madaidaicin damar ya ƙunshi prefetch -8N,
Ko rubuta ko karanta, daga zagayowar canja wurin bayanai na CK 2 akan agogo mai faɗi 256-bit. Ƙwaƙwalwar ƙwaƙwalwar ajiyar ciki ta ƙunshi bayanan WCK guda takwas akan madaidaicin agogon rabin-zagaye tare da faɗin 32 rago a fin I/O.
Bambanci tsakanin DDR4 da DDR5
GDDR5 yana aiki tare da nau'in agogo daban-daban. Umurnin bambancin agogo (CK) a matsayin nuni ga adireshi da bayanan umarni, rubuta bambancin agogo (WCK) azaman tunani mai karantawa da rubutu. Don zama madaidaici, manufa na agogon SGRAM GDDR5, kowannen su ya saita zuwa bytes biyu.
WCK yana aiki a mitar CK sau biyu. Ɗaukar GDDR5 tare da ƙimar bayanai na 5 Gbit/s akan kowane fil misali, agogon CK yana aiki da 1.25 GHz da WCK tare da 2.5 GHz.
Za a daidaita agogon CK da WCK yayin farawa da horon jerin. Wannan daidaituwar tana ba da damar karatu da rubutu tare da ƙarancin jinkiri. Guda 32-bit GDDR5 da Pin Pins, aikace-aikacenmu sun nuna kuma sun gwada GDDR5, kuma sun nuna takarda akan fasahar bayan GDDR5.
. A ranar 10 ga Mayu, 2008, Kimunda ya ba da sanarwar samar da kayayyaki na 512 GDDR5 da aka ƙididdige su a 3.6 Gbit/s (900 MHz), 4.0 Gbit/s (1 GHz), da 4.5 Gbit/s (1.125 GHz). Don ƙarin bayani, ziyarci Wikipedia
