Apple A5 vs A6
A5 thiab A6 yog Apple qhov tseeb Multi Processor System ntawm Chips (MPSoCs) tsim los tsom lawv cov cuab yeej tuav tes thiab qhia hauv lawv cov khoom lag luam zoo li iPhone thiab iPad. Yooj yim muab, MPSoC yog lub khoos phis tawj nrog ntau lub processors ntawm ib qho kev sib xyaw ua ke (aka nti). Technically, MPSoC yog ib qho IC uas sib koom ua ke xws li ntau lub microprocessors, nco, tawm tswv yim / tawm ntawm lub khoos phis tawj thiab so uas txhawb nqa xov tooj cua ua haujlwm ntawm cov neeg siv khoom siv hluav taws xob.
Ob lub ntsiab lus tseem ceeb ntawm A5 thiab A6 MPSoCs yog lawv ARM raws CPUs (Central Processing Unit, aka processor) thiab PowerVR raws GPUs (Graphics Processing Unit). Thaum A5 yog raws li ARM's v7 ISA (kev qhia teeb tsa architecture, qhov pib ntawm kev tsim cov processor), A6 yog raws li Apple hloov kho version ntawm tib ISA, hu ua ARM v7s. Thaum pib, CPU thiab GPU hauv A5 tau tsim nyob rau hauv cov tshuab semiconductor hu ua 45nm thiab A6 tau tsim hauv 32nm thev naus laus zis. Txawm hais tias Apple tsim lawv, Samsung tsim lawv rau Apple.
Apple A5
A5 tau muag thawj zaug hauv lub Peb Hlis 2011, thaum Apple tso nws cov ntsiav tshuaj tshiab, iPad2. Tom qab Apple lub iPhone clone, iPhone 4S tau tso tawm nrog Apple A5. Raws li kev tawm tsam rau nws cov thawj ntawm A4, A5 muaj dual cores hauv nws ob qho tib si CPU thiab GPU. A5's dual core CPU yog raws li ARM Cortex-A9 processor (uas siv ARM v7 ISA), thiab nws cov tub ntxhais dual GPU yog raws li PowerVR SGX543MP2 graphics processor. A5's CPU feem ntau yog clocked ntawm 1GHz (txawm hais tias lub clocking siv zaus scaling thiab, yog li ntawd, lub moos ceev yuav hloov ntawm 800MHz mus rau 1GHz, raws li lub load, lub hom phiaj txuag hluav taws xob), thiab nws GPU yog clocked ntawm 200MHz. A5 muaj 32KB L1 cache nco ib core thiab 1MB sib koom L2 cache. A5 los nrog 512MB DDR2 nco pob uas feem ntau yog clocked ntawm 400MHz.
Apple A6
Apple, lub cim lag luam uas paub txog kev ua txhaum kev cai, tsoo nws tus kheej kev lig kev cai ntawm kev tso tawm cov txheej txheem loj nrog nws cov iPads tshiab kawg thaum nws txiav txim siab tso Apple A6 processor nrog iPhone (iPhone 5) thaum lub Cuaj Hlis 2012. As opposed rau cov neeg nyiam ntseeg tias Apple yuav coj nws cov quad-core CPU hauv A6, A6 tau nruab nrog dual-core processor zoo ib yam li nws cov A5 processor. Txawm li cas los xij, A6 muaj qhov hloov pauv ntawm ISA uas tau siv hauv A5 thiab hauv tsev processor architecture, hu ua Apple Swift (uas yog qhov zoo dua nrog cov txheej txheem vector tshiab, hais tsawg kawg). Txawm hais tias A6 tau nruab nrog dual-core CPU zoo ib yam li A5, (1) Apple thov tias nws yog ob zaug sai li A5 thiab (2) qee qhov kev ntsuas ntsuas tau ua los ntawm cov neeg sab nrauv xyuas tau qhia tias A6 ua tau zoo dua A5, vim rau nws cov txheej txheem qhia kho dua tshiab thiab kho vajtse architecture. A6 processor ntseeg tau tias yuav tsum tau clocked ntawm 1.3GHz, sai npaum li A5. GPU siv (uas yog lub luag haujlwm rau cov duab ua haujlwm) hauv A6 yog triple-core PowerVR SGX543MP3, tsis zoo li dual-core GPU hauv A5. Yog li ntawd, cov duab ua tau zoo ntawm A6 yog qhov zoo dua li ntawm Apple A5 processor. A6 yuav tsum tau xa nrog 32KB L1 ntiag tug cache nco ib core (rau cov ntaub ntawv thiab kev qhia cais) thiab 1MB sib koom L2 cache, zoo li cache configurations rau nws cov thawj coj. A6 MPSoCs kuj tau thauj khoom sai dua 1GB DDR2 (tsawg zog) SDRAMs.
Kev sib piv Ntawm Apple A5 thiab Thov A6
| Apple A5 | Apple A6 | |
| Hnub tso tawm | March 2011 | September 2012 |
| Type | MPSoC | MPSoC |
| Thawj Device | YiPad2 | iPhone 5 |
| Lwm yam khoom siv | iPhone 4S, 3G Apple TV | Tsis tau muaj |
| ISA | ARM v7 | ARM v7s |
| ARM Cortex-A9 (dual core) | Apple Swift (dual core) | |
| CPU's Clock Speed | 0.8-1.0GHz (ntau zaus scaling enabled) | 1.3GHz |
| YGPU | PowerVR SGX543MP2 (dual core) | PowerVR SGX543MP3 (triple core) |
| GPU's Clock Speed | 200MHz | 266MHz |
| CPU/GPU Technology | 45nm | 32nm |
| L1 Cache | 32kB kev qhia, 32kB cov ntaub ntawv | 32kB kev qhia, 32kB cov ntaub ntawv |
| L2 Cache | 1MB | 1MB |
| Memory | 512MB DDR2 (LP), 400MHz | 1GB DDR2 LP, 533MHz |
Summary
Hauv cov ntsiab lus, Apple A6 tau cog lus tias yuav ua tau zoo dua ob zaug hauv CPU thiab cov duab piv rau Apple A5. Thaum, cov thev naus laus zis tshiab siv uas txhawb nqa lub moos nrawm dua thiab cov cuab yeej kho vajtse zoo dua tau ua kom nrawm nrawm hauv CPU, nrawm dua moos thiab cov tub ntxhais ntxiv tau ua kom nrawm nrawm hauv GPU. Ntxiv nrog rau qhov nrawm, nco ntxiv thiab nrawm dua hauv A6 yuav pab cov ntawv thov kev tshaib plab uas tau tshwm sim hauv Apple Store tsis ntev los no.
