Cloud pricing comparisons are tricky. List prices, discount structures, and free tiers vary dramatically between providers. Rather than a superficial "OCI is cheaper" claim, let's compare specific workloads honestly.
Methodology
For each comparison, we use:
On-demand (pay-as-you-go) list prices: as of late 2024
US regions: (US East for AWS, US Ashburn for OCI)
Similar specifications: (matching OCPUs/vCPUs, memory, storage)
Note: Enterprise agreements, committed use discounts, and negotiated pricing can change these numbers significantly.
Compute
Standard Web Server (4 vCPU, 16 GB RAM)
OCI: (VM.Standard.E4.Flex, 2 OCPU, 16 GB): ~$0.0612/hour = **$44.06/month**
AWS: (m5.xlarge, 4 vCPU, 16 GB): ~$0.192/hour = **$138.24/month**
OCI is approximately 68% cheaper for equivalent compute. This is partly because 1 OCI OCPU = 2 vCPUs (a physical core, not a hyperthread).
ARM-Based Compute (4 vCPU, 16 GB RAM)
OCI: (VM.Standard.A1.Flex, 4 OCPU, 16 GB): ~$0.040/hour = **$28.80/month**
AWS: (m6g.xlarge, 4 vCPU, 16 GB): ~$0.154/hour = **$110.88/month**
OCI is approximately 74% cheaper for ARM compute. OCI's A1.Flex instances are among the cheapest compute options across any cloud.
GPU Compute (1 GPU)
GPU pricing varies significantly by model. Both providers offer NVIDIA options, but OCI's GPU pricing has historically been competitive, especially with bare metal GPU shapes.
Storage
Object Storage (1 TB/month)
OCI: Standard Tier: **$25.50/month**
AWS: S3 Standard: **$23.00/month**
AWS is slightly cheaper for standard object storage, but OCI's Infrequent Access tier ($10/TB) is competitive with S3-IA ($12.50/TB).
Block Storage (1 TB, balanced performance)
OCI: Block Volume (balanced): **$25.50/month**
AWS: EBS gp3 (1 TB): **$80.00/month**
OCI block storage is approximately 68% cheaper. This is a significant advantage for storage-heavy workloads.
Networking
Data Transfer (Egress)
This is OCI's strongest pricing advantage:
OCI: First **10 TB/month free**, then ~$0.0085/GB
AWS: First 100 GB/month free, then ~$0.09/GB
For an application transferring 5 TB/month:
OCI: **$0** (within free tier)
AWS: **$449.10** (5,000 GB × $0.09, minus 100 GB free)
This single difference can make OCI dramatically cheaper for data-intensive applications.
Database
Managed Oracle Database
OCI: Autonomous Database (1 OCPU, BYOL): ~$0.6721/hour = **$483.91/month**
AWS: RDS Oracle (db.m5.xlarge, BYOL): ~$0.456/hour = **$328.32/month**
For Oracle databases specifically, the comparison depends heavily on licensing. With BYOL, AWS can be cheaper per instance. However, OCI's Autonomous Database includes automatic tuning, patching, and security — operational savings that don't show up in hourly pricing.
Managed PostgreSQL
OCI: MySQL Database Service (4 OCPU, 64GB): ~$0.4452/hour = **$320.54/month**
AWS: RDS PostgreSQL (db.m5.xlarge): ~$0.384/hour = **$276.48/month**
Pricing is relatively comparable for open-source databases.
The Bottom Line
OCI's pricing advantages are strongest in:
1. Compute: (60-70% cheaper for equivalent specs)
2. Data transfer: (10 TB free vs. 100 GB free)
3. Block storage: (60-70% cheaper)
AWS advantages include a broader service ecosystem, more regions, and competitive pricing for specific services like S3 and managed databases.
For Oracle workloads specifically, OCI is almost always cheaper when factoring in BYOL benefits and the Oracle Database-specific optimizations. For mixed workloads, the best approach is to use OCIFinOps to accurately track your OCI costs and compare them against equivalent AWS estimates for your specific usage patterns.