Amazon has more than half of all Arm server CPUs in the world
According to Bernstein, because these chips were optimized for the specific needs of AWS, the company is able to fit in more cores per socket or per rack and the chips consume less power, translating to lower spending on space and cooling.
It is often asserted that while Arm cores might be more energy efficient, they provide lower performance than x86 chips. However, the report said that customer testimonies compiled by Amazon claim 20 percent to 70 percent lower cost at the same performance as comparable x86 chips. Bernstein's report estimates that Graviton represented about 20 percent of AWS CPU instances by mid-2022, most of which would have been the 7nm Graviton2, but Amazon is moving to deploy 5nm Graviton3 and 3E instances and is expected to introduce a Graviton4 with the Armv9 architecture fabricated using TSMC's 3nm production process in 2025.
Ampere is credited as being"arguably the second most successful Arm server CPU supplier," which the report estimates to have between 5 and 10 percent of this market. It managed to grow from essentially nothing to account for 0.6 percent of all CPU instances available from cloud providers globally by mid-2022, as per the report.Other companies with Arm server chips include Nvidia, which is introducingto market, plus Huawei and Phytium in China.
Looking beyond servers, Bernstein's report estimates that Arm chips powered about 12 percent of PCs shipped in the fourth quarter of 2022 , with the vast majority of these being Macs.
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