- Amazon EC2
- Instance types
- c8i Instances
Amazon EC2 C8i and C8i-flex Instances
Compute optimized instances powered by custom Intel Xeon 6 processors available only on AWS
Why Amazon EC2 C8i and C8i-flex instances?
Amazon EC2 C8i and C8i-flex deliver the highest performance and fastest memory bandwidth among comparable Intel processors in the cloud. They deliver up to 15% better price-performance and 2.5x more memory bandwidth compared to previous generation Intel-based instances, with 20% better performance than C7i instances. Power your most demanding workloads with up to 60% faster performance for NGINX web applications, up to 40% faster performance for AI deep learning recommendation models, and 35% faster Memcached performance. C8i-flex instances provide the easiest path to price-performance for compute intensive workloads such as web servers, databases, caches, Apache Kafka, and Elasticsearch.
C8i variants
C8id: Storage optimized instances with up to 22.8TB of NVMe SSD local storage (3x more), 43% higher performance, and 3.3x higher memory bandwidth—compared to C6id instances. Ideal for workloads requiring high-speed, low-latency local storage such as video encoding, image manipulation, media processing, batch and log processing.
C8in and C8ib: Network optimized and EBS optimized instances designed for specialized workloads. C8in instances offer up to 600Gbps network bandwidth, ideal for network-intensive workloads like distributed compute, large-scale data analytics, and data ingestion from S3 and data lakes. C8ib instances offer up to 300Gbps EBS bandwidth and 1440K IOPS, optimized for workloads requiring high block storage throughput and IOPS such as high-performance file systems and NoSQL databases. Both deliver up to 43% higher performance compared to previous generation instances.
Benefits
Many customers do not fully utilize all the compute resources of an EC2 instance. Those customers are therefore paying for performance that they don’t need. Amazon EC2 C8i-flex instances offer the easiest way to achieve improved price performance for compute intensive workloads. Amazon EC2 Flex instances efficiently use compute resources with the ability to scale up to full compute performance majority of the time. Flex instances are purpose-built to optimize cost and performance.
C8i-flex instances offer the easiest way to optimize costs for compute intensive workloads. They deliver up to 15% better price performance compared to previous generation instances. C8i provides additional larger instance sizes, including two metal sizes, to run more demanding and larger-sized workloads.
C8i-flex offers the most common sizes from large to 16xlarge, while C8i and variants provide sizes scaling up to 96xlarge (including metal sizes), with varying amounts of vCPU, memory, networking, and storage. This allows for larger data processing and improved scaling for caching workloads.
C8i instances and variants are built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor. These instances feature the latest sixth generation AWS Nitro Cards, which improve network throughput for workloads that handle small packets, such as web, application, and gaming servers. The new instances also support IBC feature, offering flexibility in allocating resources between network and Amazon Elastic Block Storage (Amazon EBS) bandwidth.
Features
C8i instances and variants are powered by custom Intel Xeon 6 processors with a sustained all-core turbo frequency of 3.9 GHz. These custom processors offer the highest compute performance and fastest memory among comparable Intel processors in the cloud. Both instances include support for always-on memory encryption.
C8in instances offer up to 600Gbps of networking bandwidth and up to 2.5x higher packet performance per vCPU compared to C6in instances, while C8ib instances offer up to 300Gbps of EBS bandwidth. Both C8in and C8ib support Elastic Fabric Adapter (EFA) in the 48xlarge, 96xlarge, metal-48xl, and metal-96xl sizes, and all C8i variants use DDR5 7200MT/s DIMMs.
C8i and C8i-flex instances feature 4.6x larger L3 cache versus previous generation instances, while C8in, C8ib, and C8id instances feature 8.8x larger L3 cache compared to previous generation C6in instances—improving latency for CPU-based inference, scientific computing, and caching workloads. Intel Xeon 6 processors offer enhanced built-in accelerators such as Advanced Matrix Extensions (AMX) with FP16 support on C8i and C8i-flex instances, enabling a wider range of CPU-based inference workloads.
The AWS Nitro System is the foundation for our next generation of EC2, enabling AWS to innovate faster, further reduce cost for our customers, and deliver added benefits like increased security and new instance types. These instances are built using the latest sixth generation AWS Nitro Cards, which offload and accelerate I/O for functions, increasing overall system performance. The new Nitro cards deliver up to 2x more network and 2x more EBS bandwidth over comparable previous generation instances.
C8i and C8i-flex instances support a new instance bandwidth configuration feature that offers flexibility in allocating resources between network and EBS bandwidth. This allows customers to scale network or EBS bandwidth by 25% and improve database performance, query processing, and logging speeds
C8i-flex
Amazon EC2 C8i-flex instances, powered by custom Intel Xeon 6 processors, available only on AWS, deliver up to 15% better price performance compared to previous generation instances. C8i-flex instances provide up to 20% higher performance, 2.5x more memory throughput, 4.6x larger cache, and are a great first choice for compute intensive applications that do not fully utilize all the compute resources, such as web and application servers, databases, caches, Apache Kafka, and Elasticsearch. C8i- flex instances efficiently use compute resources to deliver a baseline level of performance with the ability to scale up to the full compute performance 95% of the time.
|
Instance Size
|
vCPU
|
Memory (GiB)
|
Instance Storage (GB)
|
Network Bandwidth (Gbps)
|
EBS Bandwidth (Gbps)
|
|---|---|---|---|---|---|
|
c8i-flex.large
|
2 |
4 |
EBS-Only
|
Up to 12.5
|
Up to 10 |
|
c8i-flex.xlarge
|
4 |
8 |
EBS-Only
|
Up to 12.5
|
Up to 10 |
|
c8i-flex.2xlarge
|
8 |
16 |
EBS-Only
|
Up to 15
|
Up to 10
|
|
c8i-flex.4xlarge
|
16 |
32 |
EBS-Only
|
Up to 15
|
Up to 10 |
|
c8i-flex.8xlarge
|
32 |
64 |
EBS-Only
|
Up to 15
|
Up to 10 |
|
c8i-flex.12xlarge
|
48 |
96 |
EBS-Only
|
Up to 22.5
|
Up to 15 |
|
c8i-flex.16xlarge
|
64 |
128 |
EBS-Only
|
Up to 30
|
Up to 20 |
C8i
Amazon EC2 C8i instances, powered by Intel Xeon 6 processors, deliver up to 15% better price performance compared to previous generation instances. C8i instances are ideal for all compute intensive workloads and are particularly well suited for batch processing, distributed analytics, high- performance computing (HPC), ad serving, highly scalable multiplayer gaming, and video encoding. C8i instances scale up to 96xlarge with memory options reaching up to 768 GB, allowing for larger data processing and improved scaling for compute intensive workloads.
|
Instance Size
|
vCPU
|
Memory (GiB)
|
Instance Storage (GB)
|
Network Bandwidth (Gbps)
|
EBS Bandwidth (Gbps)
|
|---|---|---|---|---|---|
|
c8i.large
|
2 |
4 |
EBS-Only
|
Up to 12.5
|
Up to 10 |
|
c8i.xlarge
|
4 |
8 |
EBS-Only
|
Up to 12.5
|
Up to 10 |
|
c8i.2xlarge
|
8 |
16 |
EBS-Only
|
Up to 15
|
Up to 10
|
|
c8i.4xlarge
|
16 |
32 |
EBS-Only
|
Up to 15
|
Up to 10 |
|
c8i.8xlarge
|
32 |
64 |
EBS-Only
|
15
|
10 |
|
c8i.12xlarge
|
48 |
96 |
EBS-Only
|
22.5
|
15 |
|
c8i.16xlarge
|
64 |
128 |
EBS-Only
|
30
|
20 |
|
c8i.24xlarge
|
96 |
192 |
EBS-Only |
40 |
30 |
|
c8i.32xlarge
|
128 |
256 |
EBS-Only |
50 |
40 |
|
c8i.48xlarge
|
192 |
384 |
EBS-Only |
75 |
60 |
|
c8i.96xlarge
|
384 |
768 |
EBS-Only |
100 |
80 |
|
c8i.metal-48xl
|
192 |
384 |
EBS-Only |
75 |
60 |
|
c8i.metal-96xl
|
384 |
768 |
EBS-Only |
100 |
80 |
C8id
Amazon EC2 C8id instances, powered by custom Intel Xeon 6 processors available only on AWS, deliver up to 43% higher performance compared to C6id instances. C8id instances provide up to 3.3x higher memory bandwidth, and feature up to 22.8TB of NVMe SSD local instance storage — 3x more than C6id instances. Amazon EC2 C8id instances are ideal for compute-intensive workloads, including those that need access to high-speed, low-latency local storage, such as video encoding, image manipulation, and other forms of media processing. C8id instances will benefit applications that require temporary storage of data, such as batch and log processing, and applications that need caches and scratch files.
|
Instance Size
|
vCPU
|
Memory (GiB)
|
Instance Storage (GB)
|
Network Bandwidth (Gbps)
|
EBS Bandwidth (Gbps)
|
|---|---|---|---|---|---|
|
c8id.large
|
2 |
4 |
1 x 118 NVMe SSD
|
Up to 12.5
|
Up to 10 |
|
c8id.xlarge
|
4 |
8 |
1 x 237 NVMe SSD
|
Up to 12.5
|
Up to 10 |
|
c8id.2xlarge
|
8 |
16 |
1 x 474 NVMe SSD
|
Up to 15
|
Up to 10
|
|
c8id.4xlarge
|
16 |
32 |
1 x 950 NVMe SSD
|
Up to 15
|
Up to 10 |
|
c8id.8xlarge
|
32 |
64 |
1 x 1900 NVMe SSD
|
15 |
10 |
|
c8id.12xlarge
|
48 |
96 |
1 x 2850 NVMe SSD
|
22.5 |
15 |
|
c8id.16xlarge
|
64 |
128 |
1 x 3800 NVMe SSD
|
30 |
20 |
|
c8id.24xlarge
|
96 |
192 |
2 x 2850 NVMe SSD
|
40
|
30 |
|
c8id.32xlarge
|
128 |
256 |
2 x 3800 NVMe SSD
|
50 |
40 |
|
c8id.48xlarge
|
192 |
384 |
3 x 3800 NVMe SSD
|
75 |
60 |
|
c8id.96xlarge
|
384 |
768 |
6 x 3800 NVMe SSD
|
100 |
80 |
|
c8id.metal-48xl
|
192 |
384 |
3 x 3800 NVMe SSD
|
75 |
60 |
|
c8id.metal-96xl
|
384 |
768 |
6 x 3800 NVMe SSD
|
100 |
80 |
C8in
C8in instances deliver up to 600Gbps network bandwidth with up to 384 vCPUs and up to 43% better compute performance. C8in instances are ideal for network-intensive workloads such as distributed compute, large-scale data analytics, and data ingestion from S3 and data lakes.
|
Instance Size
|
vCPU
|
Memory (GiB)
|
Instance Storage (GB)
|
Network Bandwidth (Gbps)
|
EBS Bandwidth (Gbps)
|
|---|---|---|---|---|---|
|
c8in.large
|
2 |
4 |
EBS-Only |
Up to 25
|
Up to 10 |
|
c8in.xlarge
|
4 |
8 |
EBS-Only |
Up to 30
|
Up to 10 |
|
c8in.2xlarge
|
8 |
16 |
EBS-Only |
Up to 40
|
Up to 10
|
|
c8in.4xlarge
|
16 |
32 |
EBS-Only |
Up to 50
|
Up to 10 |
|
c8in.8xlarge
|
32 |
64 |
EBS-Only |
50 |
10 |
|
c8in.12xlarge
|
48 |
96 |
EBS-Only |
75 |
15 |
|
c8in.16xlarge
|
64 |
128 |
EBS-Only |
100 |
25 |
|
c8in.24xlarge
|
96 |
192 |
EBS-Only |
150 |
30 |
|
c8in.32xlarge
|
128 |
256 |
EBS-Only |
200 |
40 |
|
c8in.48xlarge
|
192 |
384 |
EBS-Only |
300 |
60 |
|
c8in.96xlarge
|
384 |
768 |
EBS-Only |
600 |
120 |
|
c8in.metal-48xl
|
192 |
384 |
EBS-Only |
300 |
60 |
|
c8in.metal-96xl
|
384 |
768 |
EBS-Only |
600 |
120 |
C8ib
C8ib instances deliver up to 300Gbps EBS bandwidth, up to 1,440K IOPS, and support for up to 128 EBS volumes per instance. These instances are ideal for workloads that require high block storage throughput and IOPS, such as high-performance file systems and NoSQL databases.
|
Instance Size
|
vCPU
|
Memory (GiB)
|
Instance Storage (GB)
|
Network Bandwidth (Gbps)
|
EBS Bandwidth (Gbps)
|
|---|---|---|---|---|---|
|
c8ib.large
|
2 |
4 |
EBS-Only |
Up to 16.666 |
Up to 25 |
|
c8ib.xlarge
|
4 |
8 |
EBS-Only |
Up to 20
|
Up to 25 |
|
c8ib.2xlarge
|
8 |
16 |
EBS-Only |
Up to 26.666 |
Up to 25
|
|
c8ib.4xlarge
|
16 |
32 |
EBS-Only |
Up to 33.333 |
Up to 25 |
|
c8ib.8xlarge
|
32 |
64 |
EBS-Only |
33.333 |
25 |
|
c8ib.12xlarge
|
48 |
96 |
EBS-Only |
50 |
37.5 |
|
c8ib.16xlarge
|
64 |
128 |
EBS-Only |
66.666 |
50 |
|
c8ib.24xlarge
|
96 |
192 |
EBS-Only |
100 |
75 |
|
c8ib.32xlarge
|
128 |
256 |
EBS-Only |
133.333 |
100 |
|
c8ib.48xlarge
|
192 |
384 |
EBS-Only |
200 |
150 |
|
c8ib.96xlarge
|
384 |
768 |
EBS-Only |
400 |
300 |
|
c8ib.metal-48xl
|
192 |
384 |
EBS-Only |
200 |
150 |
|
c8ib.metal-96xl
|
384 |
768 |
EBS-Only |
400 |
300 |
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