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Arm released its flagship mali-g78 GPU: 24 cores for the first time in history, with a 25% increase in performance

via:快科技     time:2020/5/26 23:42:55     readed:97

With the help of CPU elder brother and its own rapid evolution, arm Mali series GPU graphics core has occupied a strong dominant position in the mobile field, and has no temper with powervr. today, ARM also brought new flagship Mali-G78GPU、 sub-flag flagship Mali-G76GPU!.

Last year's Mali-G77 first introduced a new Valhall graphics architecture that was widely adopted by top SoC, and this time the Mali-G78 is naturally an upgraded version, most notablyFor the first time, it supports 24 cores, an increase of half compared with 16 cores of mali-g77.

Arm claims that the performance of mali-g78 can be improved by 25% compared with mali-g77 in terms of comprehensive architecture, process and other aspects. Even under the same process conditions, the performance can be improved by 15%, energy efficiency by 10% and machine learning performance by 15%.

Besides scaling up, the Mali-G78 has also upgraded its architecture, but not much, with the official emphasis on just one thing:The whole GPU has only one global clock domain, which is changed into a new two-level structure. The upper shared GPU module is separated from the core frequency of the actual shader, that is, asynchronous clock domain.

In this way, the core of GPU can work at different frequencies from other parts, fast or slow, so as to solve the imbalance between geometric output and calculation, texture, engine, and make GPU run at different voltages, so as to reduce power consumption and improve energy efficiency. This is also a common practice for desktop CPU and GPU.

In addition,Mali-g78 completely rewrites FMA (fusion multiply add) engine, including new multiplication architecture, new addition architecture, fp32 / fp16 floating point, which can save 30% power.

Mali-g68 is the first flagship GPU, which is clearly positioned in the middle of mali-g70 series and mali-g50 series. The architecture and features completely follow mali-g78. The only difference is that it can only support up to six cores.

In other words,Configuration 1-6 core is called Mali-G68, configuration 7-24 core is called you Mali-G78, so simple.

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