Some of AWS cloud services will use Arm-based server chips. Amazon has taken another big step toward reducing reliance on Intel and AMD for a critical component of its cloud-computing service. Late Monday the largest cloud company unveiled its own server processors and informed that these chips will support new versions of its main EC2 cloud-computing service. It is a logic move for the world's biggest internet service provider and yet this news caught semiconductor experts unaware. Amazon did a good job keeping this secret. Designing its own processor is a complex project that likely took several years. New processor named Graviton and it is build on ARM architecture previously used mostly as smartphone processors. They are less powerful than made by Intel or AMD, but cheaper, and more power efficient. And at Amazon’s scale, even small efficiency and cost savings will nicely add up.