Apple A5 vs NVIDIA Tegra 3 | Nvidia Tegra 3 Quad-Core Processor vs Apple A5 Processor Ceev, Kev Ua Haujlwm
Kab lus no piv ob qhov tsis ntev los no System-on-Chips (SoC), Apple A5 thiab NVIDIA Tegra3, tsim los rau cov neeg siv khoom siv hluav taws xob los ntawm Apple thiab NVIDIA feem. Hauv Layperson lub sij hawm, SoC yog lub computer ntawm ib qho IC (Integrated Circuit, aka nti). Technically, SoC yog IC uas koom ua ke cov khoom siv hauv lub computer (xws li microprocessor, nco, input / output) thiab lwm lub tshuab uas ua haujlwm rau hluav taws xob thiab xov tooj cua. Ob lub Apple A5 thiab NVIDIA Tegra3 yog Multiprocessor System-on-Chip (MPSoC), qhov twg tus qauv tsim siv multiprocessor architecture rau kev siv lub zog suav nrog. Thaum Apple tso A5 thaum Lub Peb Hlis 2011 nrog nws iPad2, NVIDIA tso Tegra3 thaum Lub Kaum Ib Hlis 2011, thiab nws tseem tsis tau siv rau hauv cov khoom siv hluav taws xob.
Feem ntau, cov khoom tseem ceeb ntawm SoC yog nws CPU (Central Processing Unit) thiab GPU (Graphics Processing Unit). Cov CPUs hauv Apple A5 thiab Tegra3 yog raws li ARM's (Advanced RICS - Txo Cov Kev Qhia Teeb Meem Computer - Tshuab, tsim los ntawm ARM Holdings) v7 ISA (Instruction Set Architecture, ib qho uas yog siv los ua qhov chaw pib tsim lub processor).
Apple A5
A5 yog thawj zaug ua lag luam thaum Lub Peb Hlis 2011, thaum Apple tso nws cov ntsiav tshuaj tshiab, iPad2. Tom qab Apple lub iPhone tsis ntev los no clone, iPhone 4S tau tso tawm nrog Apple A5. Apple A5 yog tsim los ntawm Apple thiab tsim los ntawm Samsung sawv cev ntawm Apple. Raws li kev tawm tsam rau nws thawj Apple A4, A5 muaj dual cores hauv nws ob qho tib si CPU thiab GPU. Yog li, technically Apple A5 tsis yog SoC xwb, tab sis kuj yog MPSoC (Multi Processor System ntawm Chip). A5's dual core CPU yog raws li ARM Cotex-A9 processor (uas siv tib yam ARM v7 ISA uas yog siv los ntawm Apple A4), thiab nws cov tub ntxhais dual GPU yog raws li PowerVR SGX543MP2 cov duab processor. A5's CPU feem ntau yog moos ntawm 1GHz (lub clocking siv zaus scaling; yog li ntawd, lub moos ceev yuav hloov los ntawm 800MHz mus rau 1GHz, raws li lub load, tsom lub zog txuag), thiab nws GPU moos ntawm 200MHz. A5 muaj ob qho L1 (kev qhia thiab cov ntaub ntawv) thiab L2 cache nco. A5 los nrog 512MB DDR2 nco pob uas feem ntau clocked ntawm 533MHz.
NVIDIA Tegra3 (Series)
NVIDIA, Ameslikas yog GPU (Graphics Processing Unit) lub tuam txhab tsim khoom [tau lees tias tau tsim GPUs hauv lub nineties lig] tau tsis ntev los no tau tsiv mus rau hauv kev lag luam txawb, qhov twg NVIDIA's System ntawm Chips (SoC) tau xa mus rau hauv xov tooj, ntsiav tshuaj thiab lwm yam khoom siv tes tuav. Tegra yog SoC series tsim los ntawm NVIDIA lub hom phiaj xa mus rau hauv kev ua lag luam txawb. Thawj MPSoC hauv Tegra3 series tau tso tawm thaum lub Kaum Ib Hlis 2011 thiab tseem yuav raug xa mus rau hauv cov khoom lag luam muag.
NVIDIA thov tias Tegra3 yog thawj lub xov tooj ntawm tes super processor, thawj zaug muab quad core ARM Cotex-A9 architecture ua ke. Txawm hais tias Tegra3 muaj plaub (thiab yog li ntawd quad) ARM Cotex-A9 cores raws li nws lub ntsiab CPU, nws muaj ib qho auxiliary ARM Cotex-A9 core (lub npe hu ua tus khub tub ntxhais), uas zoo tib yam hauv architecture rau lwm tus, tab sis etches ntawm lub zog qis. ntaub thiab moos ntawm qhov tsawg zaus. Thaum lub cores tseem ceeb tuaj yeem teev ntawm 1.3GHz (thaum tag nrho plaub lub cores ua haujlwm) mus rau 1.4GHz (thaum tsuas yog ib qho ntawm plaub cores ua haujlwm), cov auxiliary core moos ntawm 500MHz. Lub hom phiaj ntawm lub auxiliary core yog khiav cov txheej txheem tom qab thaum lub cuab yeej nyob rau hauv standby hom thiab, yog li ntawd, txuag lub zog. GPU siv hauv Tegra3 yog NVIDIA's GeForce, uas muaj 12 cores ntim rau hauv nws. Tegra 3 muaj ob qho tib si L1 cache thiab L2 cache uas zoo ib yam li Tegra 2, thiab nws tso cai rau ntim txog li 2GB DDR2 RAM.
Kev sib piv ntawm Apple A5 thiab NVIDIA Tegra3 yog tabulated hauv qab no.
| Apple A5 | Tegra 3 Series | |
| Hnub tso tawm | March 2011 | November 2011 |
| Type | MPSoC | MPSoC |
| Thawj Device | YiPad2 | Tsis tau xa tawm |
| Lwm yam khoom siv | YiPhone 4S | – |
| ISA | ARM v7 (32 ntsis) | ARM v7 (32 ntsis) |
| ARM Cotex A9 (Dual Core) | ARM Cortex-A9 (Quad Core) | |
| CPU's Clock Speed | 1GHz (800MHz-1GHz) |
Single Core - mus txog 1.4 GHz Plaub Cores - mus txog 1.3 GHz Tus Tub Ntxhais - 500 MHz |
| YGPU | PowerVR SGX543MP2 (dual core) | NVIDIA GeForce (12 cores) |
| GPU's Clock Speed | 200MHz | Tsis muaj |
| CPU/GPU Technology | TSMC's 45nm | TSMC's 40nm |
| L1 Cache |
32kB kev qhia, 32kB cov ntaub ntawv (rau txhua tus tub ntxhais CPU) |
32kB kev qhia, 32kB cov ntaub ntawv (rau txhua tus tub ntxhais CPU) |
| L2 Cache |
1MB (sib koom ntawm txhua lub CPU cores) |
1MB (sib koom ntawm txhua lub CPU cores) |
| Memory | 512MB Tsawg Fais Fab DDR2, moos ntawm 533MHz | Txog 2GB DDR2 |
Summary
Hauv cov ntsiab lus, NVIDIA, hauv lub npe Tegra 3 series, tau tawm los nrog MPSoC nrog lub peev xwm siab. Nws pom tseeb tias ua tau zoo dua Apple A5 ntawm daim ntawv hauv kev suav lub zog thiab cov duab kos duab. Lub tswv yim ntawm tus khub tseem ceeb yog qhov zoo nkauj heev, vim nws tuaj yeem siv siab rau cov khoom siv mobile xws li cov khoom siv nyob rau hauv hom standby ntau dua li tsis, thiab lawv yuav tsum tau ua haujlwm tom qab. Apple A5 tau ua pov thawj los ua lag luam ua tiav hauv nws txoj kev xa tawm, iPad2 thiab iPhone 4S. Qee tus tuaj yeem sib cav tias cov ntaub kim kim, tsis muaj zog siv hauv cov tub ntxhais sib luag tuaj yeem ua rau cov neeg siv khoom hnyav. Yuav ua li cas kev lag luam hauv xov tooj ntawm tes yuav siv lub peev xwm thiab kev ua lag luam ntawm Tegra3 tseem tsis tau pom.
