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Amazon Web ServicesMicrosoft AzureGoogle Cloud Platform
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AWS Standard Reserved InstancesAWS Convertible Reserved InstanceAWS EC2 Instance Savings PlanAWS Compute Savings PlanAzure ReservationAzure Savings Plan for ComputeGCP Resource-Based Commited Use DiscountsGCP Spend-Based Commited Use Discounts
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PropertiesHighest discounts, ability to sell or transferCan be altered after purchaseHighest discount, mutable across an instance family. Return/Repurchase within 7days in the same calendar month only in the purchasing account
(see restrictions here)		Spend based, automatically flexible to size changes or usage. Return/Repurchase within 7days in the same calendar month only in the purchasing account
(see restrictions here)		Highest discount, limitations to sellAutomatically flexible to Compute size changes, no option to sell or changeHighest discount, fixed to single region and family, no option to sell or exchangeAutomatically flexible to Compute size or Service usage, region or project changes, no option to sell or change
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Commitment TypeResourceResourceSpendSpendResourceSpendResourceSpend
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Compute Max Discount72%66%72%66%72%65%70%48%87.5
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Services Eligible for PurchaseEC2, RDS, ElasticCache, OpenSearch, Redshift, DynamoDBEC2EC2Compute (EC2, Lambda, Fargate) OR SagemakerVM, Blob, Files, Cosmos DB, Data Factory, SQL Database, Synapse Analytics, Databrick, App Service stamp Fee, Database for MySQL, Database for PostgreSQL, Database for Maria DB, Data Explorer, Cache for Redis, Dedicate Host, Disk Storage, Backup Storage, OR Software Plans (SUSE Linux, RedHat, RedHat OpenShift)VM (with excptions), App Service (with exceptions), Functions, Container Instances, OR Dedicated HostsCompute Engine, Software Licenses (SUSE Linux Enterprise Server, SLES for SAP, RHEL for Linux and RHEL for SAP images), OR GPUs and local SSDs with Capacity ReservationCloud Bigtable, Cloud Run, Cloud Spanner, Cloud SQL, Compute Engine, Cloud VMware Engine, Kubernetes Engine, Memorystore for Redis OR Memorystore for Memcached
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ScopeBilling Org or AccountBilling Org or AccountBilling Org or AccountBilling Org or AccountSingle Resource Group, Single Subscription, Shared Scope, Management GroupSingle Resource Group, Single Subscription, Shared Scope, Management GroupProject, Billing Account sharing can be enabledBilling Acount
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GeographySingle Region or ZoneSingle Region or ZoneSingle Region *Applies all Regions *Single RegionApplies to all RegionsSingle RegionApplies to all Regions
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Capacity ReservationZonal onlyZonal onlyvia On Demand Capacity Reservationsvia On Demand Capacity Reservations, or NoneYesNoneYes via attaching a reservationNone
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Compute FamilyFixedFixedFixedAuto selectingFixedAuto selectingFixedAuto selecting
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Compute SizeInstance Type auto flexibility for Linux EC2 only with limitations; all others fixedInstance Type auto flexibility for Linux EC2 only with limitations; all others fixedAuto selecting within familyAuto selectingAuto selectingAuto selectingAuto selectingAuto selecting
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Operating SystemFixedFixedAuto selectingAuto selectingN/AAuto selectingFixed via purchasing additional License CommitmentAuto selecting
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TenancyFixedFixedAuto selectingAuto selectingN/AN/AN/AN/A
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Zonal FlexibilityAny zone for Regional purchase, none for Zonal purchaseAny zone for Regional purchase, none for Zonal purchaseAny zoneAny zoneN/AN/AAuto selectingAuto selecting
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Commitment Term1 or 3 years; shorter for EC2 via RI Marketplace buy/sell1 or 3 years; shorter via exchanges1 or 3 years1 or 3 years1 or 3 years (5 years for HBv2 VM only)1 or 3 years1 or 3 years (can term upgrade up)1 or 3 years (can term upgrade up)
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Payment OptionNo upfront, Partial upfront, All upfrontNo upfront, Partial upfront, All upfrontNo upfront, Partial upfront, All upfrontNo upfront, Partial upfront, All upfrontAll Upfront, MonthlyAll Upfront, MonthlyMonthlyMonthly
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Order of ApplicationStandard Reserved Instance, Convertible Reserved Instance, EC2 Savings Plan, Savings PlanReservations, Savings Plan for ComputeResource based commitment, Spend based commitment
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Queuing PurchaseRegional EC2 up to 3 yearsRegional EC2 up to 3 yearsUp to 3 yearsUp to 3 yearsRenewals onlyRenewals onlyRenewals onlyRenewals Only
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Renewal MechanismNoNoNoNoYesYesYesYes
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Volume DiscountsAutomatically applied based on volume of spend per region. Not applicable for Marketplace RIs, however they count towards the regional discount tier threshold(s)No direct volume discounts for CRIs, however CRI spend does count towards the regional volume discount tier(s)NoneNoneNoneNoneNone, overage eligible for Sustained Use DiscountsNone, overage eligible for Sustained Use Discounts
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Remedy if UnusedList on RI marketplaceExchange for another Instance, term, tenancy, family, size, operating system or payment optionAny Savings Plans that has an hourly commitment of $100 or less, purchased in the past 7 days and in the same calendar month can be returned. Certain restrictions apply.
(see restrictions here)		Exchange for another of the same type; refund up to $50,000 USD in a 12 month rolling window. Starting January 1, 2024, newly purchased reservations will no longer be permitted to be exchanged. Reservations purchased prioir to January 1, 2024 will reserver the right to exchange one more time.NoneNoneNone
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Savings Plans are currently not available for the China Region
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This work is licensed under CC BY 4.0 -- learn more about adaptaton or attribution of work
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