Nrog rau qhov tshiab processor core ARM tau tshaj tawm cov duab processor tsim los rau tiam tom ntej mobile single-chip systems. Mali-G77, uas yuav tsum tsis txhob totaub nrog cov zaub processor tshiab , cim kev hloov pauv ntawm ARM Bifrost architecture mus rau Valhall.
ARM tshaj tawm tias muaj kev nce ntxiv hauv cov duab ua haujlwm ntawm Mali-G77 - los ntawm 40% piv rau tiam tam sim no ntawm Mali-G76. Qhov no tau ua tiav ob qho tib si los ntawm cov txheej txheem thev naus laus zis thiab kev txhim kho architectural. Mali-G77 tuaj yeem muaj los ntawm 7 mus rau 16 cores (scaling los ntawm 1 txog 32 yog ua tau yav tom ntej), thiab txhua tus ntawm lawv yuav luag tib yam li G76. Yog li ntawd, high-end smartphones yuav zoo li tus naj npawb ntawm GPU cores.
Hauv kev ua si, koj tuaj yeem cia siab tias yuav txhim kho kev ua haujlwm ntawm 20 thiab 40%, nyob ntawm seb hom duab ua haujlwm. Kev txiav txim los ntawm cov txiaj ntsig ntawm qhov kev xeem Manhattan GFXBench nrov, qhov tseem ceeb tshaj ntawm GPU tshiab dhau ntawm tiam tam sim no yuav yuam kom cov neeg sib tw Qualcomm txhawj xeeb txog kev txhim kho tseem ceeb hauv Adreno cov duab ua haujlwm.
Ntawm nws tus kheej, tus tshiab Mali-G77 architecture muab qhov nruab nrab 30 feem pua ββββkev txhim kho hauv kev siv hluav taws xob lossis kev ua haujlwm, ARM hais. Lub cim thib ob ntawm ARM Valhall scalar architecture tso cai rau GPU ua tiav 16 cov lus qhia ib lub voj voog nyob rau tib lub sijhawm ntawm CU, piv rau yim hauv Bifrost (Mali-G76). Lwm qhov kev tsim kho tshiab suav nrog cov khoom siv uas tau tsav los ntawm lub sijhawm teem sijhawm thiab cov kev qhia tshiab tag nrho thaum tswj kev rov qab sib raug zoo nrog Bifrost. Kev them nyiaj yug rau ARM AFBC1.3 compression hom thiab lwm yam kev nrhav tshiab (FP16 render lub hom phiaj, txheej rendering thiab vertex shader outputs) kuj tau ntxiv.
Lub Bifrost CU muaj 3 lub tshuab ua kom tiav, txhua qhov suav nrog kev qhia cache, ib daim ntawv teev npe, thiab Warp tswj chav tsev. Kev faib tawm thoob plaws peb lub cav no tso cai rau 24 FMA cov lus qhia kom ua tiav ntawm 32-ntsis floating point precision (FP32). Hauv Valhall, txhua CU tsuas muaj ib lub tshuab ua tiav, muab faib nruab nrab ntawm ob chav ntsuas uas muaj peev xwm ua tiav 16 Warp cov lus qhia ib lub moos, uas ua rau tag nrho cov kev xa tawm ntawm 32 FMA FP32 cov lus qhia ib CU. Ua tsaug rau cov kev hloov hauv vaj tse, Mali-G77 tuaj yeem ua ib feem peb ntawm kev suav lej ntau dua hauv kev suav piv rau Mali-G76.
Tsis tas li ntawd, txhua tus CUs no muaj ob txoj haujlwm ua lej tshiab. Lub cav hloov dua siab tshiab (CVT) ua haujlwm yooj yim tus lej, qhov laj thawj, ceg, thiab cov lus qhia hloov pauv. Lub Tsev Haujlwm Tshwj Xeeb (SFU) ua kom cov lej sib npaug, sib faib, lub hauv paus square, logarithms, thiab lwm yam kev ua haujlwm ntawm cov lej.
Tus qauv FMA thaiv muaj ntau qhov chaw uas txhawb nqa 16 FP32 cov lus qhia ib lub voj voog, 32 rau FP16, lossis 64 rau INT8 Dot Khoom. Cov kev ua kom zoo no tuaj yeem muab tau txog li 60% kev txhim kho kev ua haujlwm hauv kev kawm tshuab.
Lwm qhov kev hloov pauv tseem ceeb hauv Mali-G77 yog ob npaug ntawm qhov kev ntxhib los mos lub cav qhov kev ua tau zoo, uas tam sim no ua 4 bilinear texels ib moos piv rau ob qho dhau los, 2 trilinear texels ib lub moos, ua kom nrawm dua FP16 thiab FP32 lim.
ARM tau ua ntau yam kev hloov pauv, nrog rau Mali-G77 thiab Valhall cog lus tias yuav txhim kho kev ua tau zoo rau kev ua si thiab kev kawm tshuab ua haujlwm. Qhov tseem ceeb, kev siv hluav taws xob thiab chip cheeb tsam tau khaws cia ntawm Bifrost qib, cog lus rau cov khoom siv txawb nrog kev ua haujlwm siab dua yam tsis muaj kev siv hluav taws xob ntau ntxiv, cua sov thiab qhov xav tau loj.
Tau qhov twg los: 3d xov.ru