{"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\/sv\/blog\/news\/graficheskij-protsessor-arm-mali-g77-stal-na-40-bystree","title":{"rendered":"Grafikprocessorn ARM Mali-G77 har blivit 40 % snabbare","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tillsammans med den nya processorarkitekturen Cortex-A77<\/a><\/noindex> presenterade f\u00f6retaget ARM en grafisk processor avsedd f\u00f6r n\u00e4sta generations mobila system-on-chip. Mali-G77, som inte f\u00e5r f\u00f6rv\u00e4xlas med den nya sk\u00e4rmprocessorn Mali-D77<\/a><\/noindex>, markerar \u00f6verg\u00e5ngen fr\u00e5n ARM Bifrost-arkitekturen till Valhall.<\/p>\n

\"Grafikprocessorn<\/p>\n

ARM deklarerar en betydande \u00f6kning av grafisk prestanda f\u00f6r Mali-G77 \u2013 med 40 % j\u00e4mf\u00f6rt med den nuvarande generationen Mali-G76. Detta har uppn\u00e5tts b\u00e5de genom tillverkningsprocessen och arkitekturella f\u00f6rb\u00e4ttringar. Mali-G77 kan ha mellan 7 och 16 k\u00e4rnor (i framtiden \u00e4r skalning fr\u00e5n 1 till 32 m\u00f6jlig), och varje k\u00e4rna \u00e4r n\u00e4stan lika stor som den i G76. D\u00e4rmed kommer h\u00f6gpresterande smarttelefoner sannolikt att utrustas med samma antal GPU-k\u00e4rnor.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

I spel kan man f\u00f6rv\u00e4nta sig en prestandaf\u00f6rb\u00e4ttring p\u00e5 mellan 20 och 40 %, beroende p\u00e5 typen av grafiska belastningar. Enligt resultaten fr\u00e5n det popul\u00e4ra testet Manhattan GFXBench, kommer den nya grafiska processorn att \u00f6vertr\u00e4ffa den nuvarande generationen, vilket f\u00e5r \u00e4ven konkurrenten Qualcomm att oroa sig f\u00f6r ett betydande f\u00f6rb\u00e4ttring av Adrenos grafiska prestanda.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

Enligt ARM ger den nya arkitekturen Mali-G77 i genomsnitt en 30-procents f\u00f6rb\u00e4ttring av energieffektiviteten eller prestanda. Den andra generationen av ARM Valhall-skal\u00e4rarkitekturen g\u00f6r det m\u00f6jligt f\u00f6r den grafiska processorn att parallellt k\u00f6ra 16 instruktioner per cykel och CU j\u00e4mf\u00f6rt med \u00e5tta i Bifrost (Mali-G76). Bland andra nyheter finns helt h\u00e5rdvaruaccelererad dynamisk instruktionplanering och en helt ny instruktionsupps\u00e4ttning med bak\u00e5tkompatibilitet med Bifrost. St\u00f6d f\u00f6r ARM AFBC1.3 komprimeringsformat har ocks\u00e5 lagts till samt andra innovationer (FP16-renderm\u00e5l, lager-rendering och vertex-shader-utg\u00e5ngar).<\/p>\n

<\/center>
\n\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

I Bifrost CU inneh\u00f6ll tre exekveringsmotorer, var och en med cachar f\u00f6r instruktioner, register och Warp kontrollblock. F\u00f6rdelningen mellan dessa tre motorer m\u00f6jliggjorde utf\u00f6rande av 24 FMA-instruktioner med 32-bitars flyttalsprecision (FP32). I Valhall har varje CU endast en exekveringsmotor, delad mellan tv\u00e5 ber\u00e4kningsmoduler som kan hantera 16 Warp-instruktioner per cykel, vilket ger en total kapacitet p\u00e5 32 FMA FP32-instruktioner per CU. Tack vare dessa arkitektoniska f\u00f6r\u00e4ndringar kan Mali-G77 utf\u00f6ra en tredjedel fler matematiska ber\u00e4kningar \u00e4n Mali-G76 vid parallella kalkyler.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

Dessutom inneh\u00e5ller varje ber\u00e4kningsmodul CU tv\u00e5 nya matematiska funktionella block. Den nya konverteringsmodulen (CVT) hanterar grundl\u00e4ggande heltals-, logiska, grenande och konverteringsinstruktioner. Blocket f\u00f6r specialfunktioner (SFU) p\u00e5skyndar operationer f\u00f6r multiplikation av heltal, division, kvadratr\u00f6tter, logaritmer och andra komplexa heltalsfunktioner.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

I standardmodulen FMA finns flera inst\u00e4llningar som st\u00f6der utf\u00f6randet av 16 FP32-instruktioner per cykel, 32 \u2013 FP16 eller 64 \u2013 INT8 Dot Product. Dessa optimeringar kan ge en prestanda\u00f6kning i maskininl\u00e4rningsapplikationer p\u00e5 upp till 60 %.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

En annan viktig f\u00f6r\u00e4ndring i Mali-G77 \u00e4r att texturmotorprestandan har dubblerats, som nu behandlar 4 biline\u00e4ra texel per cykel j\u00e4mf\u00f6rt med tv\u00e5 tidigare, samt 2 triline\u00e4ra texel per cykel, vilket ger snabbare filtrering av FP16 och FP32.<\/p>\n

\"Grafikprocessorn<\/p>\n

\"Grafikprocessorn<\/p>\n

ARM har \u00e4ven gjort en rad andra f\u00f6r\u00e4ndringar, vilket g\u00f6r att Mali-G77 och Valhall lovar avsev\u00e4rd prestations\u00f6kning f\u00f6r spelbelastningar och maskininl\u00e4rningsuppgifter. Det \u00e4r viktigt att notera att energif\u00f6rbrukningen och chipytan bevaras p\u00e5 Bifrost-niv\u00e5, vilket lovar en lansering av mobila enheter med h\u00f6gre toppprestanda utan \u00f6kade krav p\u00e5 energif\u00f6rbrukning, v\u00e4rmeavledning och storlek.<\/p>\n

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K\u00e4lla: 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\udd47Grafikprocessorn ARM Mali-G77 \u00e4r 40 % snabbare | ProHoster","description":"Tillsammans med den nya Cortex-A77-processork\u00e4rnan presenterade ARM en grafikprocessor avsedd f\u00f6r mobila 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