{"id":34756,"date":"2019-10-31T22:00:14","date_gmt":"2019-10-31T19:00:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/graficheskij-protsessor-arm-mali-g77-stal-na-40-bystree\/"},"modified":"2019-10-31T22:00:14","modified_gmt":"2019-10-31T19:00:14","slug":"graficheskij-protsessor-arm-mali-g77-stal-na-40-bystree","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/graficheskij-protsessor-arm-mali-g77-stal-na-40-bystree","title":{"rendered":"Grafick\u00fd procesor ARM Mali-G77 se stal o 40 % rychlej\u0161\u00edm","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spolu s nov\u00fdm procesorov\u00fdm j\u00e1drem Cortex-A77<\/a><\/noindex> firma ARM uvedla grafick\u00fd procesor ur\u010den\u00fd pro mobiln\u00ed syst\u00e9m na \u010dipu nov\u00e9 generace. Mali-G77, kter\u00fd nen\u00ed t\u0159eba zam\u011b\u0148ovat s nov\u00fdm procesorem displeje Mali-D77<\/a><\/noindex>, znamen\u00e1 p\u0159echod z architektury ARM Bifrost na Valhall.<\/p>\n

\"Grafick\u00fd<\/p>\n

ARM hl\u00e1s\u00ed v\u00fdrazn\u00fd n\u00e1r\u016fst grafick\u00e9ho v\u00fdkonu Mali-G77 \u2014 o 40 % ve srovn\u00e1n\u00ed se sou\u010dasnou generac\u00ed Mali-G76. Toho bylo dosa\u017eeno jak d\u00edky v\u00fdrobn\u00edmu procesu, tak i architektonick\u00fdm vylep\u0161en\u00edm. Mali-G77 m\u016f\u017ee m\u00edt od 7 do 16 jader (v budoucnu je mo\u017en\u00e9 \u0161k\u00e1lov\u00e1n\u00ed od 1 do 32), p\u0159i\u010dem\u017e ka\u017ed\u00e9 z nich je t\u00e9m\u011b\u0159 stejn\u011b velk\u00e9 jako u G76. Vysokov\u00fdkonn\u00e9 smartphony tedy pravd\u011bpodobn\u011b budou vybaveny stejn\u00fdm po\u010dtem GPU jader.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

Ve hr\u00e1ch je mo\u017en\u00e9 o\u010dek\u00e1vat zlep\u0161en\u00ed v\u00fdkonu v rozmez\u00ed od 20 do 40 %, v z\u00e1vislosti na typu grafick\u00fdch z\u00e1t\u011b\u017e\u00ed. Soud\u011b podle v\u00fdsledk\u016f popul\u00e1rn\u00edho testu Manhattan GFXBench, zna\u010dn\u00e9 p\u0159evahy nov\u00e9ho grafick\u00e9ho procesoru nad sou\u010dasnou generac\u00ed p\u0159im\u011bje i konkurentskou spole\u010dnost Qualcomm k v\u00fdznamn\u00e9mu zlep\u0161en\u00ed v\u00fdkonu grafiky Adreno.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

Podle spole\u010dnosti ARM nov\u00e1 architektura Mali-G77 sama o sob\u011b zaji\u0161\u0165uje pr\u016fm\u011brn\u00e9 zlep\u0161en\u00ed energetick\u00e9 \u00fa\u010dinnosti nebo v\u00fdkonu o 30 %. Druh\u00e1 generace skal\u00e1rn\u00ed architektury ARM Valhall umo\u017e\u0148uje grafick\u00e9mu procesoru sou\u010dasn\u011b vykon\u00e1vat 16 instrukc\u00ed na cyklus na CU ve srovn\u00e1n\u00ed se osmi v Bifrost (Mali-G76). Mezi dal\u0161\u00ed novinky pat\u0159\u00ed pln\u011b hardwarov\u011b \u0159\u00edzen\u00e9 dynamick\u00e9 pl\u00e1nov\u00e1n\u00ed instrukc\u00ed a zcela nov\u00fd instruk\u010dn\u00ed soubor se zachov\u00e1n\u00edm zp\u011btn\u00e9 kompatibility s Bifrost. Byla tak\u00e9 p\u0159id\u00e1na podpora kompresn\u00edho form\u00e1tu ARM AFBC1.3 a dal\u0161\u00ed novinky (FP16 render targets, layered rendering a vertex shader outputs).<\/p>\n

<\/center>
\n\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

V Bifrost CU byly t\u0159i v\u00fdpo\u010detn\u00ed j\u00e1dra, z nich\u017e ka\u017ed\u00e9 obsahovalo cache instrukc\u00ed, registr a \u0159\u00eddic\u00ed blok Warp. Rozd\u011blen\u00ed \u00faloh mezi t\u011bmito t\u0159emi j\u00e1dry umo\u017enilo prov\u00e1d\u011bt 24 instrukc\u00ed FMA s 32bitovou p\u0159esnost\u00ed v\u00fdpo\u010dt\u016f s plovouc\u00ed desetinnou \u010d\u00e1rkou (FP32). V architektu\u0159e Valhall m\u00e1 ka\u017ed\u00e9 CU pouze jedno j\u00e1dro pro vykon\u00e1v\u00e1n\u00ed instrukc\u00ed, sd\u00edlen\u00e9 mezi dv\u011bma v\u00fdpo\u010detn\u00edmi moduly schopn\u00fdmi zpracov\u00e1vat po 16 Warp instrukc\u00edch za takt, co\u017e zaji\u0161\u0165uje celkovou propustnost 32 instrukc\u00ed FMA FP32 na CU. D\u00edky t\u011bmto architektonick\u00fdm zm\u011bn\u00e1m m\u016f\u017ee Mali-G77 p\u0159i paraleln\u00edch v\u00fdpo\u010dtech prov\u00e1d\u011bt o t\u0159etinu v\u00edce matematick\u00fdch v\u00fdpo\u010dt\u016f ve srovn\u00e1n\u00ed s Mali-G76.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

Ka\u017ed\u00fd z t\u011bchto v\u00fdpo\u010detn\u00edch modul\u016f CU nav\u00edc obsahuje dva nov\u00e9 matematick\u00e9 funk\u010dn\u00ed bloky. Nov\u00fd p\u0159evodov\u00fd modul (CVT) zpracov\u00e1v\u00e1 z\u00e1kladn\u00ed celo\u010d\u00edseln\u00e9, logick\u00e9, podm\u00ednkov\u00e9 a p\u0159evodn\u00ed instrukce. Blok speci\u00e1ln\u00edch funkc\u00ed (SFU) zrychluje operace n\u00e1soben\u00ed cel\u00fdch \u010d\u00edsel, d\u011blen\u00ed, druh\u00e9 odmocniny, logaritmy a dal\u0161\u00ed slo\u017eit\u00e9 celo\u010d\u00edseln\u00e9 funkce.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

Standardn\u00ed blok FMA obsahuje n\u011bkolik nastaven\u00ed, kter\u00e9 podporuj\u00ed vykon\u00e1n\u00ed 16 instrukc\u00ed FP32 za cyklus, 32 \u2014 FP16 nebo 64 \u2014 INT8 Dot Product. Tyto optimalizace mohou zajistit zv\u00fd\u0161en\u00ed v\u00fdkonu v aplikac\u00edch strojov\u00e9ho u\u010den\u00ed a\u017e o 60 %.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

Dal\u0161\u00ed kl\u00ed\u010dovou zm\u011bnou v Mali-G77 je zdvojn\u00e1soben\u00ed v\u00fdkonu texturovac\u00edho modulu, kter\u00fd nyn\u00ed zpracov\u00e1v\u00e1 4 biline\u00e1rn\u00ed texel\u016f za takt ve srovn\u00e1n\u00ed se dv\u011bma d\u0159\u00edve, 2 triline\u00e1rn\u00ed texel\u016f za takt, co\u017e zaji\u0161\u0165uje rychlej\u0161\u00ed filtrov\u00e1n\u00ed FP16 a FP32.<\/p>\n

\"Grafick\u00fd<\/p>\n

\"Grafick\u00fd<\/p>\n

ARM tak\u00e9 provedl \u0159adu dal\u0161\u00edch zm\u011bn, d\u00edky nim\u017e Mali-G77 a Valhall slibuj\u00ed v\u00fdznamn\u00e9 zv\u00fd\u0161en\u00ed v\u00fdkonu pro hern\u00ed zat\u00ed\u017een\u00ed a \u00fakoly strojov\u00e9ho u\u010den\u00ed. Je d\u016fle\u017eit\u00e9 poznamenat, \u017ee spot\u0159eba energie a plocha \u010dipu z\u016fst\u00e1vaj\u00ed na \u00farovni Bifrost, co\u017e slibuje uveden\u00ed mobiln\u00edch za\u0159\u00edzen\u00ed s vy\u0161\u0161\u00edm \u0161pi\u010dkov\u00fdm v\u00fdkonem bez zv\u00fd\u0161en\u00ed po\u017eadavk\u016f na spot\u0159ebu elektrick\u00e9 energie, odvod tepla a velikost.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Zdroj: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041d\u0430\u0440\u044f\u0434\u0443 \u0441 \u043d\u043e\u0432\u044b\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043d\u044b\u043c \u044f\u0434\u0440\u043e\u043c Cortex-A77 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f ARM \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u043e\u0434\u043d\u043e\u043a\u0440\u0438\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u044f. Mali-G77, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0435 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u043f\u0443\u0442\u0430\u0442\u044c \u0441 \u043d\u043e\u0432\u044b\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u043c \u0434\u0438\u0441\u043f\u043b\u0435\u044f Mali-D77, \u0437\u043d\u0430\u043c\u0435\u043d\u0443\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u0441 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b ARM Bifrost \u0438 \u043d\u0430 Valhall. ARM \u0434\u0435\u043a\u043b\u0430\u0440\u0438\u0440\u0443\u0435\u0442 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u0438\u0440\u043e\u0441\u0442 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 Mali-G77 — \u043d\u0430 40 % \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u0435\u043c Mali-G76. […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-34756","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Grafick\u00fd procesor ARM Mali-G77 byl o 40 % rychlej\u0161\u00ed | ProHoster","description":"Spole\u010dn\u011b s nov\u00fdm procesorov\u00fdm j\u00e1drem Cortex-A77 p\u0159edstavila spole\u010dnost ARM grafick\u00fd procesor ur\u010den\u00fd pro mobiln\u00ed syst\u00e9my na 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