Solid-state drives tau hloov kho lub computer cia. Cov tiam tshiab ntawm cov tsav tsheb tshwm sim txhua xyoo, thiab cov ntsiab lus zoo li PCIe SSD, M.2, thiab NVMe tau siv ntau ntawm qhov kawg. SSDs muaj qee qhov txiaj ntsig tseem ceeb ntawm cov tsav sib nqus, tab sis nrog kev ntes.
Qhov zoo ntawm PCIe SSDs dhau SATA Drives
Interfaces ntawm lub computer motherboard ua haujlwm ntawm qhov sib txawv. Ib yam li cov khoom siv sab hauv ntawm lub khoos phis tawj sib txuas lus nrawm dua li ib yam dab tsi txuas nrog USB, muaj qhov sib txawv bandwidth txwv rau sab hauv interfaces.
SATA tau yog lub ntsiab interface siv los txuas hard drives rau lub motherboard tau ntau xyoo. Nws ua haujlwm zoo, thiab nrog cov qauv sib nqus-platter hard drives, SATA tsis tuaj yeem tshaj tawm nws cov peev xwm hloov pauv. Txawm li cas los xij, SSD thev naus laus zis tuaj yeem ua tau. SATA cia siab rau cov xov hlau sab hauv uas khiav ntawm lub tsav mus rau cov chaw nres nkoj ntawm lub motherboard. Nws tsis yog txhua yam ncaj qha, tab sis nws tau ua tiav txoj haujlwm thiab tso cai rau kev hloov pauv hauv kev tsav tsheb.
PCIe yog qhov kev sib txuas siab siv rau cov khoom xws li cov ntawv teev lus uas xav tau cov ntaub ntawv bandwidth loj heev ntawm qhov nrawm heev. PCIe li ntsaws rau hauv lub motherboard thiab xa cov ntaub ntawv ncaj qha mus rau CPU ntawm tus nqi siab dua. Nrog PCIe, SSDs raug txwv ntau dua los ntawm lawv lub peev xwm nyeem thiab sau ntau dua li lawv muaj peev xwm hloov cov ntaub ntawv.
Ntau npaum li cas yog PCIe SSD?
Qhov kev hloov pauv tam sim no ntawm SATA yog SATA III. Nws txhawb qhov theoretical sab saum toj ceev ntawm 6 Gb / s, uas ua haujlwm tawm mus txog 600 MB / s ntawm cov ntaub ntawv hloov chaw.
PCIe yog qhov nyuaj me ntsis kom tawg. Ua ntej, muaj PCIe 1.0, 2.0, thiab 3.0 sockets. Version 3.0 yog qhov tshiab tshaj plaws, tab sis version 2.0 slots muaj nyob ntawm qee lub motherboards.
Yog hais tias lub rooj tsavxwm yog PCIe 3.0 lub rooj tsavxwm, koj yuav tsum muaj txoj hauv kev. PCIe kev sib txuas tau muab faib ua txoj kab. Feem ntau muaj plaub-txoj kab, yim-txoj kab, thiab 16-txoj kab sockets, thiab koj tuaj yeem txheeb xyuas qhov loj me ntawm lub rooj tsavxwm. Qhov loj 16-kab kab yog qhov twg daim npav kos duab txuas rau.
PCIe 3.0 muaj qhov theoretical ceev ntawm 1 GB / s ib txoj kab, txhais tau tias PCIe 3.0 x16 qhov (socket) muaj qhov theoretical cap ntawm 16 GB / s. Qhov ntawd yog qhov siab ceev rau lub hard drive. Ib txwm PCIe SSD feem ntau yuav siv plaub lossis yim kab, tab sis qhov peev xwm tseem zoo dua SATA.
Cov lej no yog qhov theoretical, thiab tsis yog koj qhov kev ua tau zoo yuav zoo li cas. Yog tias koj saib ntawm SSDs tiag tiag, qhov nrawm tshaj tawm yog qhov tseem ceeb dua, tab sis qhov txiaj ntsig tseem pom tseeb.
Samsung 860 EVO thov qhov max sequential nyeem ceev ntawm 550 MB / s thiab max sequential sau ceev ntawm 520 MB / s. Qhov ze tshaj plaws piv rau PCIe tsav, Samsung 960 EVO, tau tshaj tawm 3.2 GB / s max sequential nyeem ceev thiab 1.7 GB / s max sequential sau ceev. Nws tsuas yog siv plaub txoj kab PCIe xwb.
NVMe and M.2
Ob nqe lus ntxiv tau tham nrog PCIe drives: NVMe thiab M.2.
M.2 yog hais txog PCIe daim ntawv tsim los tshwj xeeb rau SSDs. M.2 yog compact dua li tus qauv PCIe, thiab tsuas yog lees txais M.2 daim ntawv cov khoom siv, uas tsuas yog hard drives xwb.
M.2 tau tsim los muab qhov sib txuas kom tso cai rau SSDs siv PCIe interface yam tsis muaj kev cuam tshuam nrog, lossis siv qhov qhib los ntawm, ntau dua PCIe cov khoom siv xws li cov ntawv teev lus. M.2 kuj tseem muaj nyob rau hauv lub laptops vim tias nws feem ntau nyob ncaj nraim rau hauv lub motherboard, siv qhov chaw me me.
NVMe sawv cev rau Non-Volatile Memory Express. Tsis-Volatile nco yog txhua hom kev nco cia. Lub cim xeeb tsis zoo yog hais txog qee yam xws li RAM uas tau sau tsis tu ncua thiab tsis nyob tom qab rov pib dua.
NVMe yog cov txheej txheem tsim tshwj xeeb rau PCIe hard drives kom tso cai rau cov tsav sib txuas lus sai. Lub hom phiaj ntawm NVMe yog kom tau txais SSDs coj tus cwj pwm zoo li RAM vim RAM siv cov thev naus laus zis zoo sib xws thiab txav nrawm dua SSDs.
