I go to https://instances.vantage.sh because for years now they have scraped the ec2 APIs to make a beautiful searchable and easily filtered and sorted way to select instance types that is 100000x better and more USABLE than anything AWS has been able to create. It’s sad when the external ecosystem does a better job than AWS native stuff Answer from dghah on reddit.com
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AWS
aws.amazon.com › compute › amazon ec2 › instance types
EC2 instance types
2 days ago - EC2 instance types are purpose-built configurations of virtual servers, designed with different resource combinations to help your applications perform at their best.
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Amazon EC2
instances.vantage.sh
Amazon EC2 Instance Comparison
EC2Instances.info - Easy Amazon EC2 Instance Comparison ·
Discussions

What is your process for choosing what EC2 instance type is appropriate and what are the pain points?
Try this search for more information on this topic. Comments, questions or suggestions regarding this autoresponse? Please send them here . I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns. More on reddit.com
🌐 r/aws
20
9
December 11, 2024
EC2 Instance types naming: What is the difference between Instance families that are Intel processors and have "i" attribute and those who don't ?
It's a bit confusing. When EC2 launched back in 2006, only Intel processors were used. It wasn't until 2018 that the first AMD processors were available, so the family name was changed to add the 'a' (ex. T3a, M5a, etc.). That was also the year that the first Graviton instance was available - its family type used a different naming convention, A1.medium Instances with the Graviton2 and Graviton3 processors now use a 'g' in the instance family name: t4g, c7g, etc. It gets more confusing when looking at i4g (Graviton-based) and g5 (AMD - but not g5g, which is Graviton). With the 6th generation of Intel instances, the family name started adding the 'i' as the Intel identifier. The names are also getting longer, and harder to understand: is4gen and x2iezn, anyone? More on reddit.com
🌐 r/aws
15
8
June 4, 2023
What’s your experience with AWS Graviton processors?
This really depends on the workload. For general web servers usage, it works just fine and is cheaper than x86. For straight costs it’s an easy swap, pair it with spot instance usage and you’re in a sweet spot. Only things you really need to worry about is some code compatibility which AWS has some tools to help with like the Graviton porting assistant. For benchmarking.. it’s best for multi threaded apps so you might not see much performance increase over x86 depending on your application or usage. But same performance for less costs is nice. More on reddit.com
🌐 r/aws
76
76
December 20, 2024
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Amazon Web Services
amazonaws.cn › home › products › ec2
Amazon EC2 Instance Types
2 days ago - Amazon EC2 provides a wide selection of instance types optimized to fit different use cases. Instance types comprise varying combinations of CPU, memory, storage, and networking capacity and give you the flexibility to choose the appropriate mix of resources for your applications.
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GeeksforGeeks
geeksforgeeks.org › devops › amazon-ec2-instance-types
Amazon EC2 - Instance Types - GeeksforGeeks
A popular option for many businesses, AWS EC2 general-purpose instances offer a versatile and scalable platform for a variety of applications. Compute Optimized Instances are special types of cloud servers designed for tasks that need a lot of processing power.
Published   October 24, 2025
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Spot.io
spot.io › home › aws ec2 pricing › which ec2 instance type is right for you?
Which EC2 Instance Type is Right for You?
October 7, 2025 - X1 instance family—an Intel Xeon-powered option, includes the X1 and X1e instances. These instances provide high memory for HPC and memory-intensive applications such as Apache Spark and SAP HANA. This option offers the highest memory-to-compute of all EC2 instance types, with the most affordable rate per GiB of RAM.
Find elsewhere
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Densify
densify.com › home › video-ec2-instance-types
How to Choose the Right Amazon EC2 Instance Type | Watch Now
September 29, 2023 - Each instance type delivers a mix of CPU, memory, storage, and networking capacity, across one or more size options, and should be carefully matched to your workload’s unique demands. AWS groups instances into families that offer discreet abilities for your workloads: ... The elastic designation in Elastic Compute Cloud refers to the ability to increase your EC2 instance footprint on demand—up or down—manually, or automatically through Auto Scaling.
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DataCamp
datacamp.com › blog › aws-ec2-instance-types
AWS EC2 Instance Types Explained: When to Use Each Type | DataCamp
May 18, 2025 - This post breaks down the different AWS EC2 instance types, helping you match your application needs with the right cloud resources for better performance and lower costs.
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Medium
medium.com › @cloudwithusama › understanding-of-ec2-instance-types-and-their-prices-f38517c5fbcf
Understanding of EC2 Instance Types and Their Prices | by Usama Malik | Medium
September 6, 2023 - This guide has provided a comprehensive overview of EC2 instance types and their pricing structures within AWS. Armed with this knowledge, you can make informed decisions when selecting the right instance type and pricing model for your specific workloads, ultimately optimizing your AWS cloud environment.
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AWS re:Post
repost.aws › knowledge-center › ec2-instance-choose-type-for-workload
Select the appropriate EC2 instance type for your workload | AWS re:Post
May 12, 2025 - Each instance type has the following hardware specifications: Default vCPUs: The number of virtual CPUs for the instance · Memory (GiB): The amount of available RAM for your applications · Instance storage (GB): The local instance store volumes that are available to the instance Note: The data in an instance store isn't permanent. If you stop or terminate the instance, then Amazon EC2 deletes the data on its instance store volumes.
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CloudZero
cloudzero.com › home › blog › ec2 instance types 101: the definitive guide for 2025
EC2 Instance Types 101: The Definitive Guide For 2025
August 29, 2025 - This general purpose instance type uses high-frequency Intel Xeon processors and Amazon EBS storage. T2 is designed to provide balanced performance in terms of processing, memory, storage, and networking for workloads requiring medium-performance most of the time. Yet, T2 instances can burst higher performance in Unlimited Mode to match spikes in activity, such as a sharp increase in web traffic. Also, a T2 EC2 instance accumulates credits as long as it performs at or below its baseline performance.
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Reddit
reddit.com › r/aws › ec2 instance types naming: what is the difference between instance families that are intel processors and have "i" attribute and those who don't ?
r/aws on Reddit: EC2 Instance types naming: What is the difference between Instance families that are Intel processors and have "i" attribute and those who don't ?
June 4, 2023 -

Hello. I was reading the documentation about EC2 Instance type naming (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html) and I was checking the attributes section. According to it, The names of Instance families with letter i means that it uses Intel processor, but there are many families like T2 , T3 , M4, M5 that also use Intel CPUs.

My question is, what is the difference between Instance families that have letter i and uses Intel CPU and those who don't have letter i and use Intel CPUs ?

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CloudPrice
cloudprice.net › home › aws › ec2 instances
EC2 Instance Comparison - 1000+ AWS Instance Types & Pricing | CloudPrice
1 day ago - Compare all EC2 instance types with real-time spot, reserved, and on-demand pricing across all AWS regions.
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nOps
nops.io › blog › aws-ec2-instance-types
AWS EC2 Instance Types: The Ultimate Guide for [current_year]
May 2, 2025 - Instance types comprise varying combinations of CPU, memory, storage, and networking capacity and come in various sizes, providing scalability and flexibility to handle different and changing demands.
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IBM
ibm.com › think › topics › ec2-instance-types
AWS EC2 instance types: Challenges and best practices for hosting your applications in AWS | IBM
November 17, 2025 - EC2 instances are classified based on their characteristics such as CPU, memory, storage, and networking capacity. Each instance type is designed to optimize for specific workloads such as general-purpose computing, memory-intensive applications, ...
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TechTarget
techtarget.com › searchaws › definition › Amazon-EC2-instances
What is an Amazon EC2 Instance? Types, Features and Pricing
As of April 2024, Amazon EC2 supports 19 general-purpose instances, powered by different processor types, such as Arm-based AWS Graviton3 processors, 4th Generation Intel Xeon Scalable processors and third-generation AMD EPYC processors.
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Medium
medium.com › @simrankumari1344 › ec2-instance-types-1ba986dc716b
EC2 Instance Types. Amazon EC2 offers a variety of instance… | by Simran Kumari | Medium
June 13, 2024 - M5, M4, M3 Instances: These instances do not offer burst capabilities and are suitable for development, staging, and other steady-state workloads.
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Pump
pump.co › home › blog › ec2 instance types - compare performance & pricing
EC2 Instance Types - Compare Performance & Pricing
EC2 instances are virtual servers operating on the AWS infrastructure that run various applications. Every instance type is made specifically to cater to certain demands of a workload and varies in the CPU capacity, memory, storage, and consistent performance of the network.