Huawei‘s mobile phone business has almost been entirely grounded by the U.S sanctions that have made it impossible for the company to build phones with GMS and with the latest chips onboard. Thus, we have seen the company recycle the flagship Kirin 990 chipset which was then launched as Kirin 990E. The chipset powers the Mate 30E Pro and Mate 40E. While the Mate 30E Pro was launched last year, the Mate 40E made its entrance in March this year. 
Huawei is now reportedly working on yet another variation of the Kirin 990 and it will be known as Kirin 990A. The chipset is targeted at Huawei’s newfound love, in-car systems. Huawei has shifted its focus to manufacturing intuitive in-car systems, autonomous driving technology as well as electric cars. Huawei still manufactures PCs, though, and other products whose production is not affected by the US sanctions.
The Kirin 990A has a completely different architecture from other Kirin 990 series chips. In terms of architecture, Kirin 990A uses 4-core Taishan V120 (large core) and 4-core Cortex A55 CPU (small core) based on the ARM V7A series. The Taishan V120 is an Hisilicon developed CPU that is likely a successor to the Taishan V110. The Kirin 990A also features a Mali-G76 GPU. 
The smart luxury electric car BAIC Arcfox Alpha S that was unveiled on April 17 equipped with HarmonyOS, is also equipped with a Kirin 990A chip. The chip is said to feature a 3.5 TOPs (Tera Operations per Second) computing power, and even supports 5G connectivity.
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(source)
