Yog Dab Tsi Lawv thiab Nws Yuav Tsum Tau Ua Dabtsi Yuav Kom Koj Lub PC lossis Kev Ntsuas?
Kev lig kev cai, cov lus qhia hauv computer tau ua kom zoo dua lwm cov khoom siv hauv tsev thaum nws tuaj rau hauv kev daws teeb meem. Qhov no pib hloov ib zaug txhais tau tias lub TV tau txais kev pom zoo rau cov neeg siv thiab thaum kawg tau txais los ntawm tsoomfwv thiab cov broadcasters. Tam sim no HDTVs thiab feem ntau tus neeg saib xyuas kev sib qhia qhia tib qho kev daws teeb meem tiam sis mobile computers rau feem ntau tseem tuaj nruab nrog cov lus ntawm qis qhia. Qhov no tau hloov me ntsis tom qab Kua pib tso lawv cov lus qhia Retina raws tab sis tam sim no nrog qhov xaus 4K los yog UltraHD cov ntsiab lus, cov neeg tau txais kev pab tam sim no tau txais kev qhia uas muaj qee yam tsis paub zoo tshaj yav dhau los. Muaj qee qhov kev cuam tshuam yog tias koj xav tau thiab siv cov 4K zaub nrog koj lub computer.
4K lossis UltraHD yog dab tsi?
4K los yog UltraHD raws li nws yog hu ua siv los siv rau kev qhia txog cov chav kawm tshiab ntawm high definition txhais televisions thiab video. Tus 4K yog siv rau kev daws teeb meem ntawm daim duab ntawm daim duab. Feem ntau, nws yog 3840 x 2160 los yog 4096 x 2160 qauv. Qhov no yog plaub npaug ntawm kev daws teeb meem ntawm cov qauv HD uas muaj saum toj kawg nkaus thaum 1920 x 1080. Txawm tias cov lus no tuaj yeem tsis tshua muaj siab, cov neeg tau txais kev pabcuam yeej muaj qhov tsis txaus siab rau 4K cov duab rau lawv cov lus qhia vim tsis muaj cov txheej txheem tshaj tawm rau hauv Teb Chaws Asmeskas thiab cov thawj 4K Blu-ray tshav puav tau nyuam qhuav ua rau kev lag luam.
Nrog 3D video tsis tshua tawm hauv lub tsev ua yeeb yam hauv tsev thoob ntiaj teb, manufacturers tam sim no saib UltraHD raws li ib tug txhais tau tias mus thawb cov cim ntxiv ntawm cov hluav taws xob hauv tsev rau cov neeg siv khoom. Muaj coob tus 4K los yog UltraHD cov xov tooj muaj nyob rau hauv kev ua lag luam thiab cov lus qhia hauv PC kuj yog qhov ntau tshaj rau kev lag luam thiab txawm muab tso ua ke hauv qee lub high-end laptops. Siv cov lus qhia no muaj qee txoj cai, ho.
Video Connectors
Ib qho ntawm cov thawj cov teeb meem uas cov computers yuav sim sim khiav 4K los yog UHD tus saib xyuas yuav yog cov video connectors. Cov kev cai loj heev yuav tsum muaj ntau qhov bandwidth thiaj li xa cov ntaub ntawv xav tau rau cov teeb liab video. Yav dhau los yees xws li VGA thiab DVI tsuas yog tsis tuaj yeem siv cov kev txiav txim siab zoo. Qhov no tawm ob tshaj plaws video connectors, HDMI thiab DisplayPort . Nws yuav tsum raug sau tseg tias Thunderbolt tseem yuav txhawb cov kev cai no raws li nws tau qhia raws li DisplayPort cov cuab yeej siv thiab cov neeg sib txuas rau cov teeb meem video.
HDMI yog siv los ntawm tag nrho cov neeg siv hluav taws xob thiab tej zaum yuav mus tshaj plaws hom interface koj yuav pom ntawm qhov ntxov tshaj ntawm 4K HDTV tus saib xyuas ntawm lub khw. Hauv kev txiav txim rau lub computer siv qhov no, daim video yuav tsum muaj ib qho HDMI v1.4 sib npaug interface. Ntxiv nrog rau qhov no, koj tseem yuav tsum tau HDMI Siab Cuam cov cables. Yog tsis muaj lub cables zoo txhais tau hais tias daim duab yuav tsis muaj peev xwm kis tau mus rau qhov kev tshuaj ntsuam ntawm tag nrho kev daws teeb meem thiab yuav rov qab mus rau qhov qis dua. Muaj lwm txoj kev tsawg dua ntawm HDMI v1.4 thiab 4K yees duab zoo li. Nws tsuas yog muaj peev xwm xa ib lub teeb liab nrog 30Hz refresh tus nqi los yog 30 ntas ib ob. Qhov no tej zaum yuav siv tau los saib cov yeeb yaj kiab tab sis ntau tus neeg siv computer, feem ntau yog gamers, xav kom muaj tsawg kawg yog 60fps. Tus tshiab HDMI 2.0 specification corrects no, tiam sis nws tseem tsis tshua muaj tshwm sim hauv ntau lub computer zaub ntawv.
DisplayPort yog lwm txoj kev xaiv uas yuav siv tau los ntawm ntau lub computer kev qhia thiab video phaib. Nrog lub DisplayPort v1.2 specification, lub teeb liab tawm hauv xov tooj cua tshaj li 4K UHD video teeb liab txog 4096 x 2160 nrog sib sib zog nqus xim thiab 60Hz los yog thav ntawv ntawm ib feeb. Qhov no yog qhov zoo rau cov neeg siv computer uas xav kom muaj lub caij nyoog ceev dua los txo qhov muag thiab ua kom muaj zog ntawm qhov kev tawm suab. Tus downside ntawm no yog tias tseem muaj ntau daim video card kho tawm muaj tias tsis muaj DisplayPort version 1.2 tshaj li cov chaw nres nkoj. Qhov no txhais tau tias koj yuav tsum tau hloov mus rau ib daim npav tshiab dua tshiab yog tias koj xav siv ib qho kev qhia tshiab.
Video Card Performance
Nrog rau feem ntau cov computers tam sim no siv 1920 x 1080 siab txhais qauv kev daws teeb meem los yog tsawg dua, tsis tau muaj ntau qhov kev xav tau cov graphics zoo graphics. Txhua qhov kev ua duab graphics txawm nws muaj kev sib txuas los yog muaj peev xwm tswj tau kev ua hauj lwm yooj yim hauv kev yees duab tshiab ntawm 4K UHD. Qhov teebmeem no yuav los nrog rau kev ua kom muaj yees duab rau cov neeg siv 3D. Hauv plaub zaug qhov kev daws teeb meem ntawm tus qauv siab txhais, txhais tau hais tias plaub zaug ntawm cov ntaub ntawv xav tau los ntawm daim npav graphics . Feem ntau cov ntawv teev npe video yuav tsis muaj peev xwm mus cuag cov kev daws teeb meem uas tsis muaj teeb meem kev ua tau zoo.
PC Perspective muab tso ua ke ib tsab xov xwm zoo kawg nkaus uas tau saib txog kev ua haujlwm ntawm daim video card hardware uas sim khiav qee cov kev ua si hauv lub xov tooj thaum ntxov 4K tshaj HDMI. Lawv pom tias yog tias koj xav kom sim ua si ntawm 30 vib nas this ib zaug, koj zoo nkauj npaum li cas yuav tsum tau yuav daim credit card uas tshaj tus nqi ntawm $ 500 . Qhov no tsis yog ib qho txawv heev vim tias cov ntawv no yog qhov zoo nkauj npaum li cas yog tias koj npaj los ntawm kev khiav ntau cov neeg soj ntsuam kom tau txais kev daws teeb meem dua. Qhov feem ntau pom ntau lub teeb tso rau gamers yog peb 1920x1080 cov lus los ua kom muaj duab 5760x1080. Txawm tias khiav ib qho kev ua si ntawm qhov kev daws teeb meem no tsuas tsim peb feem plaub ntawm cov ntaub ntawv xav tau los khiav ntawm 3840x2160 kev daws teeb meem.
Dab tsi qhov no txhais tau tias yog thaum cov 4K saib puas tau txais pheej yig dua, cov graphics phaib tseem lag luam qab cov cuab yeej video rau qee lub sij hawm thaum nws tuaj cuag gaming. Nws yuav siv sij hawm peb mus rau plaub daim card graphics ua ntej peb pom tiag tiag pheej yig cov kev xaiv uas muaj cuab kav kov tau gaming ntawm cov high resolutions. Tau kawg, nws yuav ntshe ntev li ntev pom cov nqi saib xyuas raws li nws tau siv ntau lub xyoo ua ntej 1920 x 1080 cov lus ua qhov pheej yig.
Tshiab yees duab CODECs Xav Tau
Ntau feem pua ntawm cov yeeb yaj duab uas peb haus tau yog los ntawm cov chaw nyob hauv internet es tsis yog cov kev cai tshaj tawm. Nrog rau qhov nce ntawm cov ntaub ntawv loj ntawm plaub zaug ntawm qhov kev siv Ultra HD video, lub nra hnyav yuav raug tso rau hauv internet tsheb tsis hais txog qhov ntau thiab tsawg cov ntaub ntawv rau cov neeg muas thiab download tau cov ntaub ntawv video. Suddenly koj 64GB ntsiav tshuaj tsuas yog tuav ib lub hlis twg ntau li ntau cov tsos raws li nws ib zaug ua. Vim li no, muaj ib qho yuav tsum tsim ntau cov ntaub ntawv video uas yuav kis tau zoo dua cov tes hauj lwm thiab khaws cov ntawv ntau ntxiv.
Feem ntau ntawm cov yeeb yaj kiab yees duab tam sim no siv H.264 yees duab CODEC los ntawm Pawg Cov Kws Txawj Sib Tham Cov duab los yog MPEG. Feem ntau cov neeg tsuas yog cia li xa cov no ua MPEG4 video ntaub ntawv. Tam sim no, qhov no yog ib qho txhais tau yooj yim ntawm cov ntaub ntawv cov ntaub ntawv tab sis mam li nco dheev nrog 4K UHD video, Blu-Ray disc tsuas yog muaj ib-lub quarter ntawm video ntev rau nws thiab streaming yees duab yuav siv plaub zaug qhov bandwidth uas saturates network txuas tshwj xeeb ntawm tus neeg siv tas sai sai. Yuav kom daws tau qhov teeb meem no, MPEG pawg pib ua hauj lwm rau H.265 lossis High Efficiency Video CODEC (HEVC) raws li txhais tau tias kom txo cov ntaub ntawv. Lub hom phiaj yog los txo cov ntawv ntau thiab tsawg los ntawm tsib caug feem pua thaum ua kom zoo tib yam.
Qhov loj downside ntawm no yog qhov ntau ntawm cov cuab yeej video yog nyuaj coded siv cov yees duab H.264 thiaj li ua tau kom sai li sai tau. Ib tug piv txwv zoo ntawm qhov no yog Intel's HD Graphics daws nrog Quick Sync Video . Thaum no yog tawv coded kom tsis tshua muaj yees nrog HD yees duab, nws tsis yog yuav tsum tau tshaj ntawm cov khoom kho kom sib luag rau kev soj ntsuam nrog cov yees duab tshiab H.265. Tib yam muaj tseeb rau ntau cov duab ntsiab pom hauv cov khoom txawb. Qee qhov no tuaj yeem kho tau los ntawm software, tiam sis nws txhais tau hais tias muaj ntau cov khoom siv xov tooj xws li cov xov tooj ntse thiab cov ntsiav tshuaj yuav tsis muaj peev xwm ua tau rau cov yees duab tshiab. Nws thiaj li yuav daws tau nrog kho vajtse thiab software tshiab.
Cov lus xaus
4K los yog UltraHD ntsuas thiab cov lus qhia yuav pib qhib ib theem tshiab ntawm kev xav thiab cov ncauj lus kom ntxaws txog computer. Qhov no yog, ntawm chav kawm, mus ua ib yam dab tsi uas feem ntau cov neeg siv yuav tsis pom ntau xyoo vim hais tias ntawm cov nqi siab koom tes nrog ua cov duab panels. Nws yuav siv sij hawm ntau xyoo rau cov lus qhia thiab tus neeg tsav tsheb hauv lub xov tooj cua kom yeej pheej yig rau cov neeg siv tab sis nws yog qhov zoo rau thaum kawg pom qee yam txaus siab rau kev daws teeb meem dua tom qab qhov nruab nrab daws teeb meem ntawm feem ntau ntawm cov laptops tau muag tseem raug txiav txim siab txog 1080p siab txhais yees duab.