Compare AWS, Azure, Google Cloud (GCP), Oracle Cloud Infrastructure (OCI), and DigitalOcean across 100+ services in 2026. Each entry includes SLA uptime guarantees, FedRAMP compliance status, pricing signals, and real-world notes for architects and engineers making multi-cloud decisions.
Service Categories Covered
Compute & Virtual Machines — EC2 vs Azure VMs vs GCP Compute Engine vs OCI Compute vs DigitalOcean Droplets. Droplets offer flat-rate pricing starting at $4/mo with a 99.99% uptime SLA, making them a straightforward choice for cost-predictable workloads. SLA: 99.5% (single-instance, Azure/OCI), 99.95% (multi-zone, AWS/Azure/GCP/OCI), 99.99% (DigitalOcean, all Droplet types).
Object Storage — S3 vs Azure Blob Storage vs Google Cloud Storage vs OCI Object Storage vs DigitalOcean Spaces (S3-compatible). Spaces is S3-API-compatible, includes a built-in CDN, and is priced at a flat $5/mo for 250 GB storage + 1 TB outbound transfer. All providers offer 99.9%+ SLA and tiered pricing; Spaces SLA is 99.99%.
Managed Kubernetes — EKS vs AKS vs GKE vs OKE vs DigitalOcean Kubernetes (DOKS). AWS/Azure/GCP/OCI offer 99.95% SLA for the control plane; DOKS offers 99.5% SLA starting at ~$12/mo for a 2-node cluster.
Managed PostgreSQL — RDS/Aurora PostgreSQL vs Azure Database for PostgreSQL vs Cloud SQL vs OCI Database Service vs DigitalOcean Managed PostgreSQL (from ~$15/mo). FedRAMP High: AWS (GovCloud), Azure (Government). DigitalOcean does not hold FedRAMP authorization.
Serverless Functions — AWS Lambda vs Azure Functions vs Cloud Functions vs OCI Functions vs DigitalOcean Functions (App Platform Functions). DigitalOcean Functions support Node.js, Python, PHP, and Go with per-invocation billing and no cold-start infrastructure to manage.
Pub/Sub & Messaging — SNS/SQS vs Azure Service Bus vs Cloud Pub/Sub vs OCI Streaming. FedRAMP High: AWS SNS (GovCloud), Azure Service Bus (Government). FCM is not FedRAMP authorized. DigitalOcean has no native pub/sub or managed message-queue service; teams typically use a self-managed Redis, RabbitMQ Droplet, or a third-party provider such as Upstash or CloudAMQP.
CDN & Edge — CloudFront vs Azure CDN vs Cloud CDN vs OCI CDN vs DigitalOcean CDN (Spaces CDN). Spaces CDN is a built-in CDN layer for DigitalOcean Spaces (S3-compatible object storage) with no additional per-request fee beyond bandwidth.
Data Transfer & Migration — AWS DataSync (FedRAMP High) vs Azure Data Factory (FedRAMP High) vs GCP Storage Transfer (FedRAMP Moderate) vs OCI Data Transfer (FedRAMP Moderate). DigitalOcean has no managed data migration or transfer service equivalent; teams migrating to or from DigitalOcean typically use rclone, the Spaces S3-compatible API, or third-party ETL tools such as Airbyte or Fivetran.
AI & Machine Learning — SageMaker vs Azure ML vs Vertex AI vs OCI Data Science. DigitalOcean does not offer a dedicated managed ML platform; GPU Droplets (H100/A100) and GPU-optimized 1-Click droplets are available for custom model training and inference, but managed end-to-end ML pipelines require a third-party solution.
Identity & Access Management — IAM vs Azure Active Directory vs Cloud IAM vs OCI IAM. DigitalOcean offers basic access control through Team roles (Owner, Admin, Member, Billing) and fine-grained API token scopes, but lacks a full-featured IAM service with policy-based access control; not suitable for enterprise identity federation without a third-party IdP.
FedRAMP Compliance Summary (2026)
FedRAMP (Federal Risk and Authorization Management Program) is required for US government cloud workloads. Here is how the major providers compare (note: DigitalOcean does not hold FedRAMP authorization):
AWS GovCloud (US) — FedRAMP High across most core services (EC2, S3, RDS, SNS, Lambda, etc.).
Azure Government — FedRAMP High across core services (VMs, Blob, SQL, Notification Hubs, etc.).
Google Cloud Assured Workloads — FedRAMP Moderate for most services including Cloud SQL and Cloud Pub/Sub. Firebase Cloud Messaging (FCM) is NOT FedRAMP authorized.
Oracle Cloud Infrastructure (OCI) — FedRAMP Moderate for core services including Compute, Object Storage, Autonomous DB, and OCI Notifications.
SLA Comparison at a Glance
Deployment Type
AWS
Azure
GCP
OCI
DigitalOcean
Single-instance VM
No SLA
99.5%
No SLA
99.5%
99.99%
Multi-zone VM
99.95%
99.95%
99.95%
99.95%
99.99%
Multi-region active-active
99.99%+
99.99%+
99.99%+
99.99%+
No SLA
Object Storage
99.9%
99.9%
99.9%
99.9%
99.99%
Managed Kubernetes
99.95%
99.95%
99.95%
99.95%
99.5%
Cloud Compute (VM) Pricing Comparison 2026
General-purpose VM pricing for a 2 vCPU / 8 GB RAM instance in US regions (on-demand, Linux). OCI's flexible shape model and DigitalOcean's flat pricing make them stand-out options for cost-sensitive workloads.
Instance Type
AWS
Azure
GCP
OCI
DigitalOcean
2 vCPU / 8 GB (general purpose)
m7i.large
D2s v5
n2-standard-2
E5.Flex (2/8)
g-2vcpu-8gb
Hourly on-demand price
$0.1008/hr
$0.096/hr
$0.0971/hr
$0.048/hr
$0.089/hr
Approx. monthly (730 hrs)
~$74/mo
~$70/mo
~$71/mo
~$35/mo
$63/mo flat
Committed / reserved discount
Up to 72% (3yr RI)
Up to 72% (3yr Savings)
~57% (3yr CUD) + SUD
Up to 56% (1yr commit)
No commitment needed
AWS — Widest selection: 400+ instance types across compute, memory, storage, and GPU families. Savings Plans and Reserved Instances cut costs up to 72% for steady workloads.
Azure — Azure Hybrid Benefit: Bring your own Windows Server or SQL Server licenses to cut compute costs by up to 40% on top of committed pricing.
GCP — Automatic SUD: Sustained Use Discounts apply automatically for instances running >25% of a month — no commitment needed. CUDs stack on top for further savings.
OCI — Lowest on-demand: OCI Ampere A1 Flex (Arm) offers 4 vCPU / 24 GB for free (Always Free tier). Paid shapes are 30–50% cheaper than equivalent AWS instances on-demand.
DigitalOcean — Flat predictable billing: Droplets use simple flat monthly pricing — no complex instance family hierarchies, reserved instance commitments, or surprise billing. Ideal for startups and small teams.
Cloud Storage Pricing Comparison 2026
Storage pricing varies dramatically between providers and storage tiers. OCI and DigitalOcean stand out for object storage value; all providers charge premium rates for high-IOPS block storage.
Object Storage (per GB/month)
Storage Tier
AWS S3
Azure Blob
GCS
OCI
DO Spaces
Hot / Standard
$0.023/GB
$0.018/GB
$0.020/GB
$0.0255/GB
$5 / 250 GB flat†
Cool / Infrequent Access
$0.0125/GB
$0.01/GB
$0.01/GB
$0.0085/GB
Single tier only
Archive / Glacier
$0.00099/GB
$0.00099/GB
$0.004/GB
$0.0026/GB
No archive tier
Block Storage — SSD (per GB/month)
Volume Type
AWS EBS
Azure Disk
GCP PD
OCI BV
DO Volume
Standard SSD
gp3: $0.08/GB
E: $0.04/GB
Bal: $0.10/GB
$0.0255/GB
$0.10/GB
High-performance SSD
io2: $0.125/GB
P: $0.135/GB
SSD: $0.17/GB
$0.0255/GB
$0.10/GB
† DigitalOcean Spaces: flat $5/month includes 250 GB storage + 1 TB egress; $0.02/GB and $0.01/GB egress beyond that. OCI includes 10 GB free object storage. All providers charge separately for operations/requests.
AWS S3 — Lifecycle automation: S3 Intelligent-Tiering automatically moves data between access tiers. gp3 gives 3,000 IOPS / 125 MiB/s baseline at no extra charge.
OCI — Lowest block storage: OCI Block Volume ($0.0255/GB) is the cheapest high-performance block storage of any major provider, with IOPS/throughput provisioning included in the base price.
DO Spaces — Simple object storage: Spaces is S3-compatible with a flat $5/month entry price covering 250 GB and 1 TB egress. Block Volumes attach to Droplets with no IOPS tiers to configure — straightforward and predictable.
Cloud Egress & Bandwidth Cost Comparison 2026
Egress costs — what you pay to move data out to the internet — are one of the most overlooked factors in total cost of ownership. The differences between providers are dramatic, especially at scale.
Monthly Volume
AWS
Azure
GCP
OCI
DigitalOcean
First 100 GB
Free
Free
Free
Free
Free†
Up to 10 TB/month
$0.09/GB
$0.087/GB
$0.08/GB
Free*
$0.01/GB†
10–50 TB/month
$0.085/GB
$0.083/GB
$0.06/GB
$0.0085/GB
$0.01/GB
50+ TB/month
$0.07/GB
$0.05/GB
$0.04/GB
$0.0085/GB
$0.01/GB
* OCI includes 10 TB/month free internet egress. Intra-region transfer is free on all providers. † DigitalOcean includes 1 TB/month free egress per Droplet; flat $0.01/GB thereafter.
OCI Advantage: OCI includes 10 TB/month free egress, then just $0.0085/GB. For workloads transferring 50 TB/month, OCI egress costs over 90% less than AWS.
DigitalOcean Flat Rate: DigitalOcean's flat $0.01/GB egress (after 1 TB/month free per Droplet) is simple and predictable — ideal for startups and SMBs wanting no egress billing surprises.
GCP Price Cut: Google reduced egress costs significantly in 2023 and offers free egress to Cloudflare and other CDN partners — strong for globally distributed content delivery.
AWS / Azure Lock-in Risk: AWS and Azure charge standard egress rates regardless of destination. High egress costs create economic lock-in — factor this into long-term architecture decisions.
How to Find Cloud Service Equivalents
Identify your source service and category. Decide which cloud service you want to map (e.g. AWS Lambda) and note its category — compute, serverless, storage, database, networking, AI/ML, etc.
Find the service row in the equivalents table above. Each row lists one service concept with its name on every cloud: AWS Lambda → Azure Functions → Cloud Functions → OCI Functions → DigitalOcean Functions.
Compare SLA uptime guarantees. Single-instance VMs carry no SLA on AWS or GCP, but 99.5% on Azure and OCI, and 99.99% on DigitalOcean Droplets. For multi-zone deployments all five providers guarantee 99.95% or higher.
Verify FedRAMP compliance status if required. AWS GovCloud and Azure Government hold FedRAMP High for most core services. GCP Assured Workloads is FedRAMP Moderate. OCI is FedRAMP Moderate. DigitalOcean is not FedRAMP authorized. Firebase Cloud Messaging (FCM) is not FedRAMP authorized at any level.
Estimate total cost including egress. Factor in compute, storage, AND egress. OCI includes 10 TB free egress/month, then $0.0085/GB — over 10× cheaper than AWS at $0.09/GB. DigitalOcean offers a flat $0.01/GB with 1 TB/month free per Droplet.
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Frequently Asked Questions
What is the Azure equivalent of AWS Lambda?
The Azure equivalent of AWS Lambda is Azure Functions. Both are serverless compute services that run event-driven code without managing infrastructure. Azure Functions integrates natively with Azure Event Grid, Service Bus, and Cosmos DB triggers. For GCP, the equivalent is Cloud Functions (or Cloud Run for containerized workloads). For Oracle Cloud (OCI), the equivalent is OCI Functions (based on the open-source Fn Project). For DigitalOcean, the equivalent is App Platform Functions, supporting Node.js, Python, PHP, and Go.
What is the GCP equivalent of Amazon S3?
The GCP equivalent of Amazon S3 is Google Cloud Storage (GCS). Both are object storage services for unstructured data at any scale. GCS Nearline/Coldline/Archive tiers map to S3 Standard-IA/Glacier. The Azure equivalent of Amazon S3 is Azure Blob Storage. The OCI equivalent is OCI Object Storage. DigitalOcean Spaces is an S3-compatible object storage service — tools like the AWS CLI (with --endpoint-url) and S3 SDKs work with Spaces without code changes.
What is the AWS equivalent of Azure Kubernetes Service (AKS)?
The AWS equivalent of Azure Kubernetes Service (AKS) is Amazon EKS. EKS charges $0.10/hr for the managed control plane; AKS offers a free-tier control plane (Standard tier $0.10/hr). The GCP equivalent is Google Kubernetes Engine (GKE) — widely considered the most feature-complete managed Kubernetes offering, with Autopilot mode for fully managed node lifecycle. The OCI equivalent is OCI Container Engine for Kubernetes (OKE). DigitalOcean Kubernetes (DOKS) offers a simpler, lower-cost alternative with a 99.5% control-plane SLA starting at ~$12/month.
Which cloud provider is cheapest for compute in 2026?
In 2026, Oracle Cloud (OCI) offers the lowest on-demand compute pricing of any major provider. A 2 vCPU / 8 GB Flex shape costs ~$0.048/hr (~$35/month), versus AWS m7i.large at $0.1008/hr (~$74/month), Azure D2s v5 at $0.096/hr (~$70/month), and GCP n2-standard-2 at $0.0971/hr (~$71/month). OCI also offers an Always Free tier with 4 Arm A1 cores / 24 GB RAM permanently free. DigitalOcean offers flat predictable billing at $0.089/hr ($63/month) for 2 vCPU / 8 GB with no commitment — ideal for startups wanting no billing surprises.
What are the SLA differences between AWS, Azure, GCP, Oracle Cloud, and DigitalOcean in 2026?
In 2026, cloud provider SLAs vary by deployment configuration. For single-instance VMs: AWS EC2 offers no SLA, Azure VMs guarantee 99.5%, GCP Compute Engine offers no single-instance SLA, and OCI Compute offers 99.5%. For multi-zone deployments, all five major providers guarantee 99.95% or higher. DigitalOcean Kubernetes (DOKS) offers a 99.5% SLA for the control plane; DigitalOcean load balancers carry a 99.99% SLA.
Is Firebase Cloud Messaging (FCM) FedRAMP authorized in 2026?
No. FCM has not received FedRAMP authorization at any impact level. Federal agencies requiring compliant push messaging must use AWS SNS (FedRAMP High, GovCloud) or Azure Notification Hubs (FedRAMP High, Government). Google Cloud Pub/Sub is FedRAMP Moderate via Assured Workloads.
How do data transfer tools compare across cloud providers?
AWS DataSync (FedRAMP High) is the most mature online transfer tool. Azure Data Factory Copy Activity (FedRAMP High) offers the widest source/sink ecosystem (90+ connectors). GCP Storage Transfer Service is FedRAMP Moderate. OCI Data Transfer Service covers both online and physical appliance workflows. DigitalOcean has no managed data migration or transfer service; teams typically use rclone, the Spaces S3-compatible API, or third-party ETL tools such as Airbyte or Fivetran.
Which provider has the lowest egress pricing?
Oracle Cloud (OCI) includes 10 TB free egress per month, then $0.0085/GB — roughly 10× cheaper than AWS (~$0.09/GB), Azure (~$0.087/GB), or GCP (~$0.08/GB). DigitalOcean offers a flat $0.01/GB with 1 TB/month free on every Droplet, making it a predictable low-cost option for developer workloads.