Amazon: Graviton used by 98%

Cloud CPUs are usually boring — until one number tells you the market has moved. Amazon said on April 29 that Graviton, its in-house ARM server chip family, is now used by 98% of the top 1,000 EC2 customers. That is not a pilot-program stat. That is basically “almost every major AWS customer has crossed the architecture line.” The bigger point is that custom silicon is no longer just an AWS margin story — it is becoming the way big cloud workloads actually get deployed. (aboutamazon.com) ### What is Graviton, exactly? Graviton is AWS’s own CPU line for general cloud computing — the chips behind virtual machines that run web apps, databases, analytics jobs, containers, and a lot of AI-adjacent infrastructure. Unlike Intel and AMD server chips, Graviton uses Arm archit(aboutamazon.com)rvisor, and instance types — around its own workloads. (publicnow.com) ### Why is 98% such a big deal? Because adoption at that level means the migration argument is mostly over. For years, Arm in the cloud sounded like a smart but selective optimization — great for teams willing to recompile code, test dependencies, and squeeze costs. But when 98% of the top 1,000 EC2 customers are using (publicnow.com)on that nearly every serious AWS shop has at least validated in production. (aboutamazon.com) ### What pushed customers over? The simple answer is cost and performance together. Amazon keeps saying Graviton can deliver up to 40% better price-performance than comparable x86 processors, and that is the kind of number infrastructure teams cannot ignore at scale. If you run thous(aboutamazon.com)savings can be huge without changing the product your users see. (aboutamazon.com) ### Is this just about cheaper web servers? No — and that is the interesting part. Amazon says companies use Graviton across web apps, databases, big-data analytics, gaming servers, video encoding, machine learning, and high-performance computing. So this is not one narrow niche wher(aboutamazon.com) a special-purpose discount lane. (publicnow.com) ### Why does AWS care so much? Because every layer AWS owns is leverage. If Amazon designs the CPU, it can lower dependence on outside chip vendors, shape its own cost curve, and differentiate EC2 on something deeper than pricing plans. Amazon also said its custom silicon business has passed a $20 billion annual revenue(publicnow.com)d Nitro as part of a larger strategy — own more of the infrastructure, keep customers inside the stack, and improve margins while demand rises. (aboutamazon.com) ### What changed beyond the customer count? Capacity. AWS said more than half of new CPU capacity added to AWS has been powered by Graviton for three straight years. That is the supply-side confirmation. It means Amazon is not just persuading customers to try Arm — it is physically b(aboutamazon.com)ay around. (press.aboutamazon.com) ### So what does this mean for engineers? Instance selection is now architecture selection. Teams cannot treat “x86 versus Arm” as an afterthought anymore. They need to profile workloads, check libraries, test build pipelines, and know where migration friction still hides. Turns out the skill is no longer just writing scalable software. It is knowing which silicon your cloud bill is really buying. (aboutamazon.com) ### Bottom line? Amazon’s 98% figure says the Arm transition inside AWS has already happened for the biggest customers. The remaining question is not whether Graviton is real. It is how quickly “supported on Arm” becomes table stakes for everybody else. (aboutamazon.com)