AWS News Blog

New – Amazon EC2 C6a Instances Powered By 3rd Gen AMD EPYC Processors for Compute-Intensive Workloads

At AWS re:Invent 2021, we launched Amazon EC2 M6a instances powered by the 3rd Gen AMD EPYC processors, running at frequencies up to 3.6 GHz, which offer customers up to 35 percent improvement in price-performance compared to M5a instances.

Many customers are looking for ways to optimize their cloud utilization, and they are taking advantage of the compute choice that Amazon EC2 offers. Customers such as Dropbox, Capital One, and Sprinklr have been able to realize the cost benefits of AWS using EC2 instances powered by AMD EPYC processors.

Today, I am happy to announce the availability of the new compute-optimized Amazon EC2 C6a instances, which offer up to up to 15 percent improvement in price-performance versus C5a instances, and 10 percent lower cost than comparable x86-based EC2 instances.

These instances are ideal for running compute-intensive workloads such as high-performance web servers, batch processing, ad serving, machine learning, multi-player gaming, video encoding, high performance computing (HPC) such as scientific modeling, and machine learning.

Compared to C5a instances, this new instance type provides:

C6a instances support always-on memory encryption with AMD Transparent Single Key Memory Encryption (TSME), and support new AVX2 instructions for accelerating encryption and decryption algorithms.

Like M6a, C6a instances are also available in 10 sizes:

Name vCPUs Memory
(GiB)
Network Bandwidth
(Gbps)
EBS Throughput
(Gbps)
c6a.large 2 4 Up to 12.5 Up to 6.6
c6a.xlarge 4 8 Up to 12.5 Up to 6.6
c6a.2xlarge 8 16 Up to 12.5 Up to 6.6
c6a.4xlarge 16 32 Up to 12.5 Up to 6.6
c6a.8xlarge 32 64 12.5 6.6
c6a.12xlarge 48 96 18.75 10
c6a.16xlarge 64 128 25 13.3
c6a.24xlarge 96 192 37.5 20
c6a.32xlarge 128 256 50 26.6
c6a.48xlarge 192 384 50 40

The new instances are built on the AWS Nitro System, a collection of building blocks that offloads many of the traditional virtualization functions to dedicated hardware for high performance, high availability, and highly secure cloud instances.

Available Now
C6a instances are available today in three AWS Regions: US East (N. Virginia), US West (Oregon), and EU (Ireland). As usual with EC2, you pay for what you use. For more information, see the EC2 pricing page.

To learn more, visit the EC2 C6a instance and AWS/AMD partner page. You can send feedback to  ec2-amd-customer-feedback@amazon.comAWS re:Post for EC2, or through your usual AWS Support contacts.

Channy

PS – With the launch of C6a instances there are now officially more than 500 Amazon EC2 instances for customers to choose from!

Channy Yun

Channy Yun

Channy Yun is a Principal Developer Advocate for AWS, and passionate about helping developers to build modern applications on latest AWS services. A pragmatic developer and blogger at heart, he loves community-driven learning and sharing of technology, which has funneled developers to global AWS Usergroups. His main topics are open-source, container, storage, network & security, and IoT. Follow him on Twitter at @channyun.