Amazon EC2 C7g Instances
Best price performance for compute-intensive workloads in Amazon EC2
Amazon Elastic Compute Cloud (Amazon EC2) C7g instances, powered by the latest generation AWS Graviton3 processors, provide the best price performance in Amazon EC2 for compute-intensive workloads. C7g instances are ideal for high performance computing (HPC), batch processing, electronic design automation (EDA), gaming, video encoding, scientific modeling, distributed analytics, CPU-based machine learning (ML) inference, and ad serving. They offer up to 25% better performance over the sixth-generation AWS Graviton2-based C6g instances. C7g instances are the first in the cloud to feature Double Data Rate 5 (DDR5) memory, which provides 50% higher memory bandwidth compared to DDR4 memory to enable high-speed access to data in memory.
C7gn instances are powered by AWS Graviton3E processors and the latest generation Nitro Cards. C7gn instances offer up to 200 Gbps of network bandwidth and up to 50% higher packet-processing performance than existing Graviton-based EC2 instances. These new instances are ideal for running the most demanding network-intensive workloads, such as network virtual appliances, data analytics, and CPU-based artificial intelligence and machine learning (AI/ML) inference.
Benefits
Best price performance for compute-intensive workloads in Amazon EC2
C7g and C7gn instances deliver up to 25% better performance over Graviton2-based C6g and C6gn instances respectively. They are ideal for a large number of compute-intensive applications, such as HPC, video encoding, gaming, and CPU-based ML inference, that are built on Linux.
Enhanced security and maximized resource efficiency
C7g and C7gn instances are built on the AWS Nitro System. AWS Nitro System is a combination of dedicated hardware and a lightweight hypervisor that delivers isolated multi-tenancy, private networking, and fast local storage. AWS Graviton3 and AWS Graviton3E processors offer enhanced security with always-on memory encryption, dedicated caches for every vCPU, and support for pointer authentication. These instances also support encrypted Amazon Elastic Block Store (EBS) volumes by default.
Extensive software support
AWS Graviton-based instances are supported by many Linux operating systems, including Amazon Linux 2, Red Hat Enterprise Linux, SUSE, and Ubuntu. Many popular applications and services for security, monitoring and management, containers, and continuous integration and delivery (CI/CD) from AWS and software partners also support AWS Graviton-based instances. The AWS Graviton Ready program offers certified solutions from partner software vendors that can be used on AWS Graviton-based instances.
Features
Powered by AWS Graviton3 processors
AWS Graviton3 is the latest generation of AWS-designed Arm-based processors that provide the best price performance for workloads in Amazon EC2. AWS Graviton3 processors deliver up to 25% better compute performance, up to 2x higher floating-point performance, and up to 2x faster cryptographic workload performance compared to AWS Graviton2 processors. Additionally, Graviton3 processors deliver up to 3x better performance compared to Graviton2 processors for ML workloads, including support for bfloat16. C7gn instances are powered by AWS Graviton3E processors, which provide up to 35% higher vector-instruction performance compared to AWS Graviton3 processors. This improvement provides higher performance benefits for HPC applications.
High performance
C7g and C7gn instances use leading edge DDR5 memory to provide 50% higher bandwidth compared to C6g and C6gn instances. C7gn instances deliver 2x higher enhanced networking bandwidth compared to C6gn instances for network-intensive applications, such as network appliances and data analytics. C7g and C7gn have support for Elastic Fabric Adapter (EFA).
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. It delivers high performance, high availability, and high security, reducing virtualization overhead.
Product Details
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C7g
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C7g
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Amazon EC2 C7g instances are powered by Arm-based AWS Graviton3 processors. They deliver the best price performance in Amazon EC2 for compute-intensive applications.
Instance Size vCPU Memory (GiB) Instance Storage (GB) Network Bandwidth (Gbps) EBS Bandwidth (Gbps) c7g.medium
1
2
EBS-Only
Up to 12.5
Up to 10
c7g.large
2
4
EBS-Only
Up to 12.5
Up to 10
c7g.xlarge
4
8
EBS-Only
Up to 12.5
Up to 10
c7g.2xlarge
8
16
EBS-Only
Up to 15
Up to 10
c7g.4xlarge
16
32
EBS-Only
Up to 15
Up to 10
c7g.8xlarge
32
64
EBS-Only
15
10
c7g.12xlarge
48
96
EBS-Only
22.5
15
c7g.16xlarge
64
128
EBS-Only
30
20
Customer Testimonials

Founded in 1991, Epic Games is the creator of Fortnite, Unreal, Gears of War, Shadow Complex, and the Infinity Blade series of games. Epic’s Unreal Engine technology brings high-fidelity, interactive experiences to PC, console, mobile, AR, VR, and the web.
“As we look to the future and building increasingly immersive and compelling experiences for players, we are excited to use AWS Graviton3-based EC2 C7g instances. Our testing has shown they are suitable for even the most demanding latency-sensitive workloads while providing significant price performance benefits and expanding what is possible within Fortnite and any Unreal Engine-created experience.”
Mark Imbriaco, Senior Director of Engineering at Epic Games

Formula 1 (F1) racing began in 1950 and is the world’s most prestigious motor racing competition, as well as the world’s most popular annual sporting series.
“We had already seen that Graviton2-based C6gn instances provided us the best price performance for some of our CFD workloads. We have now found Graviton3 C7g instances to be 40% faster than the Graviton2 C6gn instances for those same simulations. We’re excited that EFA will be standard on this instance type, and given this much-improved price performance, we expect Graviton3-based instances to become the optimal choice to run all of our CFD workloads.”
Pat Symonds, CTO at Formula 1 Management

NextRoll Inc. is a marketing and data technology company with a mission to accelerate growth for companies, big and small. Powered by machine learning, NextRoll’s technology gathers data, delivers reliable insights, and provides business with approachable tools to target buyers in strategic ways – all on one platform.
"We have found that Graviton3-based C7g instances are ideal for bidders, ad servers, and ElastiCache clusters. We are seeing about 15% more requests handled by C7g instances compared to Graviton2-based C6g instances. With C7g instances, we also observed up to 40% better latency. Based on these findings, we are looking forward to adopting AWS Graviton3-based C7g instances in production."
Valentino Volonghi, CTO - Nextroll

Snap Inc, known for its popular social media services such as Snapchat and Bitmoji, adopted AWS Graviton2-based instances to optimize their price performance on Amazon EC2.
"We trialed the new AWS Graviton3-based Amazon EC2 C7g instances and found that they provide significant performance improvements on real workloads compared to previous generation C6g instances. We are excited to migrate our Graviton2-based workloads to Graviton3, including the messaging, storage and the friend graph workloads."
Aaron Sheldon, Software Engineer - Snap

As the only unified customer experience management platform (Unified-CXM), Sprinklr helps the world's largest and most valuable companies make their customers happier across 30+ digital channels — using industry-leading AI to create insight-driven strategies and better customer experiences.
“We run a wide variety of workloads on AWS Graviton-based instances for their significant price performance benefits. After the announcement of AWS Graviton3, we benchmarked our workloads on the new Amazon EC2 C7g instances and observed 27% better performance compared to the previous generation instances. Based on these results, we are looking forward to adopting AWS Graviton3-based instances in production.”
Jamal Mazhar, VP Infrastructure and DevOps - Sprinklr

Twitter is what’s happening and what people are talking about right now.
“Twitter is working on a multi-year project to leverage AWS Graviton-based EC2 instances to deliver Twitter timelines. As part of our ongoing effort to drive further efficiencies, we tested the new Graviton3-based C7g instances. Across a number of benchmarks that we've found to be representative of the performance of Twitter workloads, we found Graviton3-based C7g instances deliver 20-80% higher performance vs. Graviton2 based C6g instances, while also reducing tail latencies by as much as 35%. We are excited to utilize Graviton3-based instances in the future to realize significant price performance benefits."
Nick Tornow, Head of Platform - Twitter
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