Khoos phib tawj nco ceev thiab latency

Cas koj lub PC nco ceev thiab Latency cuam tshuam kev ua tau zoo

Cov kev ceev ntawm lub cim xeeb yuav txiav txim siab tus nqi ntawm qhov uas CPU tuaj yeem txheej txheem cov ntaub ntawv. Lub siab dua lub moos ntsuas ntawm lub cim xeeb, qhov ceev cov txheej txheem yuav nyeem thiab sau cov ntaub ntawv ntawm lub cim xeeb. Txhua tus nco yog nyob ntawm ib lub moos meej hauv megahertz uas lub cim xeeb interface hais rau CPU nrog. Newer nco classifying txoj kev tam sim no pib xa mus rau lawv raws li theoretical data bandwidth uas lub cim xeeb txhawb uas yuav ruam.

Tag nrho cov versions ntawm DDR nco yog raug xa mus rau los ntawm lub moos ntsuam xyuas, tab sis ntau dua nco manufacturers pib pib xa mus rau bandwidth ntawm lub cim xeeb. Yuav ua rau tej yam ruam ruam, cov hom kev nco no tuaj yeem muab teev tseg rau hauv ob txoj kev. Thawj txoj kev teev cov cim xeeb los ntawm nws txoj kev khiav ceev thiab DDR uas yog siv. Piv txwv li, koj tuaj yeem pom ntawm 1600MHz DDR3 los yog DDR3-1600 uas yeej tseem yog hom thiab kev ua haujlwm khiav ceev.

Lwm txoj kev faib cov qauv no yog los ntawm lawv cov qhab-nees bandwidth hauv megabytes ib pliag. 1600MHz nco tau khiav ntawm qhov theoretical speed ntawm 12.8 gigabytes ib ob los yog 12,800 megabytes ib pliag. Qhov no yog qhov ua ntej ntawm tus xov tooj xa mus rau PC. Yog li DDR3-1600 nco kuj hu ua PC3-12800 nco. Ntawm no yog luv luv ntawm qee tus qauv DDR cim uas tuaj yeem pom:

Tam sim no nws yog ib qho tseem ceeb kom paub tias qhov siab tshaj plaws ntawm kev nco uas koj tus neeg ua haujlwm txhawb tau. Piv txwv, koj tus processor yuav tsuas yug txog 2666 MHz DDR4 nco. Koj tseem siv tau 3200 MHz cov cim xeeb nrog cov processor, tiam sis lub motherboard thiab CPU yuav hloov lub zog mus rau kev khiav ntawm 2666 MHz. Qhov tshwm sim yog lub cim xeeb ntawm qhov tsawg tshaj li qhov nws muaj peev xwm tshaj plaws. Vim li ntawd, koj xav yuav nco tau zoo tshaj qhov koj lub computer muaj peev xwm.

Latency

Txog kev nco, muaj lwm yam tseem ceeb uas raug cuam tshuam kev ua tau zoo, latency. Qhov no yog qhov sij hawm (los yog moos cycles) nws yuav siv lub cim xeeb los teb cov lus txib. Feem ntau lub tshuab computer BIOS thiab nco cov neeg sau npe no yog CAS lossis CL rating. Nrog txhua tiam ntawm kev nco, pes tsawg tus mus rau kev hais kom ua yog nce. Piv txwv, DDR3 feem ntau sau ntawm 7 thiab 10 mus. Newer DDR4 nyhav khiav ze li ntawm ob zaug uas latency khiav ntawm 12 thiab 18. Txawm tias muaj ntau dua latency nrog newer nco, lwm yam xws li siab dua moos speeds thiab txhim kho technologies feem ntau tsis ua rau lawv qeeb qeeb.

Li ntawd, vim li cas peb ho hais latency ces? Zoo, qhov qis dua qhov latency ceev lub cim xeeb yog los teb cov lus txib. Yog li, nco nrog latency ntawm say 12 yuav zoo dua li zoo li ceev thiab cim nco nrog ib tug latency ntawm 15. Qhov teeb meem yog tias feem ntau cov neeg siv yuav tsis tiag tiag paub tias tej yam kev pab los ntawm qis latency. Qhov tseeb, ceev moos ceev nrug nrog me ntsis siab me ntsis tej zaum kuj nce mentsis qeeb qeeb los teb tab sis muaj kev zoo siab ntawm kev nco bandwidth uas muaj peev xwm muab kev ua tau zoo dua