Amazon EC2 C5 Instances

Designed for compute intensive workloads with the best price performance in Amazon EC2

Amazon EC2 C5 instances are the next generation of the Amazon EC2 Compute Optimized instance family. C5 instances offer the lowest price per vCPU in the Amazon EC2 family and are ideal for running advanced compute-intensive workloads.  This includes workloads such as high performance web servers, high-performance computing (HPC), batch processing, ad serving, highly scalable multiplayer gaming, video encoding, scientific modelling, distributed analytics and machine/deep learning inference.

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Introducing EC2 C5n Instances

C5n instances are the latest addition to the C5 family and provide up to 100 Gbps of networking throughput, optimized for network intensive applications and HPC workloads.

Features

High performance compute

C5 instances feature the Intel Xeon Platinum 8000 series (Skylake-SP) processor with a sustained all core Turbo CPU clock speed of up to 3.4GHz, and single core turbo up to 3.5 GHz using Intel Turbo Boost Technology. C5 instances offer higher memory to vCPU ratio and deliver 25% improvement in price/performance compared to C4 instances, with certain applications delivering greater than 50% improvement.  C5 instances provide support for the new Intel Advanced Vector Extensions 512 (AVX-512) instruction set, offering up to 2x the FLOPS per core per cycle compared to the previous generation C4 instances.

High performance networking

C5n instances leverage the fourth generation of custom Nitro card and Elastic Network Adapter (ENA) device to deliver 100 Gbps of network throughput to a single instance. These instances are ideal for network intensive applications, including HPC workloads, data lake and analytics software, and network appliances. C5 and C5d instances offer up to 25 Gbps of network bandwidth and are well suited for compute intensive workloads that are not network bound.

High performance storage

Local NVMe-based SSD block level storage physically connected to the host server is available on C5d instances. These instances are a great fit for applications that need access to high-speed, low latency local storage like video encoding, image manipulation and other forms of media processing. It will also benefit applications that need temporary storage of data, such as batch and log processing and applications that need caches and scratch files.

Built on the AWS Nitro System

The AWS Nitro System is a rich collection of building blocks that offloads many of the traditional virtualization functions to dedicated hardware and software to deliver high performance, high availability, and high security while also reducing virtualization overhead.

Product Details

  • C5
  • C5n
  • C5
  • C5 and C5d instances feature the Intel Xeon Platinum 8000 series (Skylake-SP) processor with a sustained all core Turbo CPU clock speed of up to 3.5 GHz. These instances provide up to 25 Gbps of network bandwidth and up to 14 Gbps of dedicated bandwidth to Amazon EBS. With C5d instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the instance.  

    Model vCPU Memory (GiB) Instance Storage (GiB) Network Bandwidth (Gbps)
    EBS Bandwidth (Mbps)
    c5.large 2 4 EBS-Only Up to 10 Up to 3,500
    c5.xlarge 4 8 EBS-Only Up to 10 Up to 3,500
    c5.2xlarge 8 16 EBS-Only Up to 10 Up to 3,500
    c5.4xlarge 16 32 EBS-Only Up to 10 3,500
    c5.9xlarge 36 72 EBS-Only 10 7,000
    c5.18xlarge 72 144 EBS-Only 25 14,000
    c5d.large 2 4 1 x 50 NVMe SSD Up to 10 Up to 3,500
    c5d.xlarge 4 8 1 x 100 NVMe SSD Up to 10 Up to 3,500
    c5d.2xlarge 8 16 1 x 200 NVMe SSD Up to 10 Up to 3,500
    c5d.4xlarge 16 32 1 x 400 NVMe SSD Up to 10 3,500
    c5d.9xlarge 36 72 1 x 900 NVMe SSD 10 7,000
    c5d.18xlarge 72 144 2 x 900 NVMe SSD 25 14,000
  • C5n
  • C5n instances feature the Intel Xeon Platinum 8000 series (Skylake-SP) processor with a sustained all core Turbo CPU clock speed of up to 3.5 GHz. C5n instances provide up to 100 Gbps of network bandwidth and up to 14 Gbps of dedicated bandwidth to Amazon EBS. C5n instances also feature 33% higher memory footprint compared to C5 instances.

    Model vCPU Memory (GiB) Instance Storage (GiB) Network Bandwidth (Gbps)
    EBS Bandwidth (Mbps)
    c5n.large 2 5.25 EBS-Only Up to 25
    Up to 3,500
    c5n.xlarge 4 10.5 EBS-Only Up to 25 Up to 3,500
    c5n.2xlarge 8 21 EBS-Only Up to 25 Up to 3,500
    c5n.4xlarge 16 42 EBS-Only Up to 25 3,500
    c5n.9xlarge 36 96
    EBS-Only 50 7,000
    c5n.18xlarge 72 192 EBS-Only 100 14,000

Customer stories

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Rescale enables customers in the aerospace, automotive, life sciences and energy sectors to run utility supercomputers using the AWS cloud. Ryan Kaneshiro, Chief Architect at Rescale, said, "C5 fully supports NVMe and is ideal for the I/O intensive HPC workloads seen on Rescale's ScaleX® platform. Along with C5's higher clock rate, we look forward to our customers experiencing a significant performance increase vs. C4."
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iPromote provides digital advertising solutions to 40,000 small and medium-sized businesses (SMBs). Matt Silva, COO at iPromote, said, “iPromote processes billions of ad serving bid transactions every day. During testing, EC2’s C5 instances improved our application’s request execution time by over 50-percent when compared to our existing C4 instances. The new C5 instances concretely improved our network performance.”
logo-alces
“With the support for AVX-512, the new c5.18xlarge instance provides a 200 percent improvement in FLOPS compared to the largest C4 instance,” said Wil Mayers, Director of Research and Development for Alces. “This will reduce the execution time of the scientific models that our customers run on the Alces Flight platform. The larger c5.18xlarge size with 72 vCPUs reduces the number of instances in the cluster, and has a direct benefit for our user base on both price and performance dimensions.”
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Grail is a life sciences company whose mission is to detect cancer early, when it can be cured. “Our platform processes a huge amount of DNA sequencing data to detect faint tumor DNA signals in a sea of background noise,” said Cos Nicolaou, Head of Technology at Grail. “We are eager to migrate onto the AVX-512 enabled c5.18xlarge instance size. With this change, we expect to decrease the processing time of some of our key workloads by more than 30 percent.”

Blog posts & articles

Jeff-Barr_Bio-Pic
 
"I’m thrilled to announce that the new compute-intensive C5 instances are available today in six sizes for launch in three AWS regions!
 
These instances are designed for compute-heavy applications like batch processing, distributed analytics, high-performance computing (HPC), ad serving, highly scalable multiplayer gaming, and video encoding. The new instances offer a 25% price/performance improvement over the C4 instances, with over 50% for some workloads. They also have additional memory per vCPU, and (for code that can make use of the new AVX-512 instructions), twice the performance for vector and floating point workloads..."
 
Jeff Barr
11/6/2017

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