DDR2 vs DDR3
DDR2 thiab DDR3 yog rau DDR SDRAM tsis ntev los no (ob npaug ntawm cov ntaub ntawv tus nqi synchronous dynamic random nkag nco) tsev neeg ntawm RAMs. Ob lub RAM no khaws cov ntaub ntawv zoo sib xws ntawm DRAM arrays. Thawj tus tswv cuab ntawm tsev neeg no yog DDR. DDR2 ua raws li DDR. Thiab, DDR3 yog tus tswv cuab, uas ua raws li DDR2. Ob lub RAMs no tsis sib haum nrog lwm RAMs hauv koob. Qhov no txhais tau tias, txhawm rau hloov koj lub RAM ntawm ib hom mus rau lwm qhov (piv txwv li, hloov kho dua tshiab los ntawm DDR2 rau DDR3 RAM) koj yuav tsum tau hloov kho koj lub motherboard tag nrho.
DDR2 yog dab tsi?
DDR2 SDRAM stands rau ob npaug ntawm cov ntaub ntawv tus nqi hom ob synchronous dynamic random nkag tau lub cim xeeb. Nws yog tus tswv cuab thib ob hauv DDR tsev neeg. Txawm li cas los xij, DDR2 RAM tsis rov qab sib haum nrog DDR. Qhov ntawd txhais tau tias koj xav tau ob hom motherboards rau DDR thiab DDR2 RAMs. Nws siv ob lub twj tso kua mis los hloov cov ntaub ntawv ntawm ob sab ntawm lub moos teeb liab (ntau npaum li DDR). DDR2 RAM muab kev ua tau zoo ntawm plaub cov ntaub ntawv hloov mus rau ib lub voj voog moos. Yog li DDR2 tuaj yeem muab qhov siab tshaj plaws hloov pauv ntawm 3200 MB / s (nrog rau lub hauv paus moos ceev ntawm 100Mhz).
DDR3 yog dab tsi?
DDR3 SDRAM stands rau ob npaug ntawm cov ntaub ntawv tus nqi hom peb synchronous dynamic random nkag tau lub cim xeeb, thiab nws yog tus tij laug loj ntawm DDR2 SDRAM hauv DDR tsev neeg. Txawm li cas los xij, DDR3 RAM tsis rov qab sib haum nrog DDR2 (lossis DDR rau qhov teeb meem ntawd) vim qhov sib txawv ntawm cov teeb liab, qhov hluav taws xob, thiab lwm yam. DDR3 RAM tuaj yeem hloov cov ntaub ntawv ntawm tus nqi uas yog ob zaug ceev li DDR2 RAM. Qhov no txhais tau tias DDR3 tuaj yeem muab bandwidth siab dua piv rau DDR2. Qhov tseeb, DDR3 tuaj yeem nce mus txog qhov bandwidth ntawm 6200 MB / s (nrog rau lub hauv paus moos ceev ntawm 100Mhz).
DDR2 thiab DDR3 yog dab tsi?
DDR2 thiab DDR3 yog txhim kho RAMs koom nrog DDR tsev neeg ntawm RAMs. DDR2 RAM muab 4 cov ntaub ntawv hloov pauv / voj voog, thaum DDR3 RAM muab 8 cov ntaub ntawv hloov pauv / voj voog. Qhov ntawd txhais tau tias yog lub hauv paus moos ceev yog 100Mhz, ces DDR2 RAM yuav muab 3200 MB / s bandwidth, thaum DDR3 RAM yuav muab 6400 MB / s bandwidth. Ntawm qhov tod tes, DDR3 RAM siv 1.5V ib nti, qhov DDR2 RAM siv 1.8V ib nti. DDR3 RAM txhawb 400-1600 Mhz I / O tsheb npav moos piv rau tsuas yog 200-800 Mhz moos hauv DDR2 RAM. Yog li, feem ntau DDR3 RAM yog qhov nrawm dua thiab siv zog tsawg dua.
Txawm li cas los xij, kev xaiv ntawm DDR2 RAM thiab DDR3 RAM tsis yog ib qho kev txiav txim siab raws li kev ua tau zoo. DDR3 RAMs tsis tuaj yeem txuas rau motherboards nrog DDR2 RAMs. Qhov ntawd txhais tau tias, yog tias koj twb muaj DDR2 RAM, koj yuav tsum tau hloov kho lub motherboard kom tau txais DDR3 RAM (feem ntau ntawm lub sijhawm), thiab qhov ntawd yuav raug nqi, ib yam nkaus. Tab sis qhov tseeb, ob qho tib si Intel thiab AMD tau cog lus siab rau DDR3 rau yav tom ntej, txhais tau tias koj yuav tau hloov kho koj lub motherboard ntawm qee qhov taw tes (yog tias koj tseem muaj DDR2 RAM). Cov xov xwm zoo yog tias, tus nqi ntawm DDR3 RAM tau siv ntau dua li DDR2 RAM, tab sis nws tau nqis los maj mam, thiab tam sim no ob tus nqi ib ncig ntawm tus nqi.
