AWS Launches New C5 Instances

AWS Launches New C5 Instances

Need more powerful compute services than the regular AWS EC2? The new C5 instances are designed to take on compute-intensive tasks: high-level analytics, machine learning inferencing, HPC, high-end video gaming, video encoding, batch processing, and so on.

The C5 series includes the next generation of hardware, including a hypervisor, which lets the host CPU allocate nearly all its resources to the instance type. This gives you the compute power you need without compromising security and providing consistent performance. As such, the C5 boasts of 25%-50% higher price/performance ratio compared to its predecessor, the C4 series. It also offers significantly more network and EBS bandwidth.

Sizes for C5 Instances 

The new series includes a customized 3.0 GHz Intel Xeon Platinum 8000-series processor, with every vCPU a hardware hyperthread. The two largest sizes can give you complete control over the C-states for compute power of up to 3.5 GHz using Intel Turbo Boost Technology.


Instance Name vCPUs RAM EBS Bandwidth Network Bandwidth
c5.large 2 4 GiB Up to 2.25 Gbps  Up to 10 Gbps
c5.xlarge 4 8 GiB Up to 2.25 Gbps Up to 10 Gbps
c5.2xlarge 8 16 GiB Up to 2.25 Gbps Up to 10 Gbps
c5.4xlarge 16 32 GiB 2.25 Gbps Up to 10 Gbps
c5.9xlarge 36 72 GiB 4.5 Gbps 10 Gbps
c5.18xlarge 72 144 GiB 9 Gbps 25 Gbps


C5 instances require Elastic Network Adapter (ENA) and NVMe drivers for its HVM AMIs. However, latest versions of Amazon Linux, Microsoft Windows Server 2012 R2 and Windows Server 2016, Ubuntu, RHEL, CentOS, SLES, Debian and FreeBSD AMIs support the C5 series.

You may launch an On-Demand or Spot instance of the C5 series today in any of three regions: US East (Northern Virginia), US West (Oregon), and EU(Ireland). More regions to come soon.

If you need help getting your enterprise on cloud compute services, contact our AWS experts at PolarSeven today.