ARM發布新GPU Mali-G51和 VPU Mali-V61 - 手機討論

By Joe
at 2016-10-31T21:08
at 2016-10-31T21:08
Table of Contents
http://www.cnbeta.com/articles/553515.htm
前不久華為海思發佈了麒麟960處理器,正式商用了ARM的Cortex-A73 CPU及Mali-G71
GPU核心,圖形性能一改麒麟GPU以往較為普通的印象,超越了高通驍龍820等現有高端處
理器。Mali-G71主要用於高端處理器,今天ARM公司又推出了面向中端市場的Mali-G51
GPU,針對2018年的設備。另外還發佈了Mali-V61 VPU,支持4K 120解碼。
先來說下Mali-G51,跟之前發佈的Mali-G71一樣使用了新的Bifrost架構,不過G71
偏重性能,G51相比之下更注重能效。
Mali-G51的地位類似T800系列中的Mali-T830,針對主流設備,官方表示其效能是前代
的1.6倍,性能也是1.6倍,主要用於2018年的移動產品,提供可接受的VR性能,支持更
高的屏幕分辨率。
ARM官網上目前還沒有Mali-G51 GPU的詳細介紹,單看核心圖的話跟G71沒什麼差別,但
是可以預計其渲染單元數量會更少,但大部分技術規格都是相同的,包括支持Vulkan、
OpenCL 2.0及OpenGL ES 3.2等。
ARM Mali-V61 VPU Mali-V61是視頻處理器,屬於ARM公司對外提供的IP核心之一,不過
並非每家公司都會選擇,畢竟它屬於附加值,並不是必須的。
在VPU上,ARM之前的V550/V500其實已經很不錯了,支持H.265/VP9等編碼了,也早支持
4K分辨率,現在的Mali-V61在視頻編碼支持上沒多大變化,但也提高了效率,可節省
56%的位率或者同樣的位率下提高畫質、同樣的畫質下更少的位率。
Mali-V61的並行性也更好,單核支持1080p60,8核甚至可以支持4K120流媒體,用戶可
以根據需要來配置。此外,Mali-V61也支持Mali-G51上引入的AFBC 1.2壓縮。
G51又是跟G71改架構後縮小面積之後 反而對行動架構GPU方面夠好
面積小、性能又更好,對於中階的市場 華為、發哥、三星應該都會選用吧
還有VPU 有別於CPU、GPU可以自己獨立專門解碼運用更省電
堆核就能讓中階機也有串流4K (發哥有可能搶去用嗎?)
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