EC2 pricing · Memory optimized
r7g.4xlarge price in sa-east-1 (Sao Paulo): per hour & per month
Updated 2026-10-19
$25,000 in credits runs one r7g.4xlarge in South America (Sao Paulo) for about 25 months (credits usually expire in 12 to 24).
r7g.4xlarge (16 vCPU, 128 GiB, AWS Graviton3) costs $1.36 per hour on demand in South America (Sao Paulo), or $995 for a 730-hour month on Linux.
Memory optimized instance with 16 vCPU and 128 GiB: lots of RAM for databases, caches, in-memory analytics and large JVM apps.
- On demand
- $1.36/h
- Monthly (730h)
- $995
- Specs
- 16 vCPU, 128 GiB, AWS Graviton3
Is r7g.4xlarge right for you?
What 128 GiB of RAM runs
- ✓ Large databases and caches
- ✓ Analytics and batch jobs
- ✓ High-traffic production services
- ✕ Early MVPs: right-size down first
Full-time CPU
No burst limits: all 16 vCPUs are yours 100% of the time, so it suits steady traffic, builds and background jobs.
Arm (Graviton) checklist
AWS Graviton3 is usually 20% cheaper than the x86 equivalent for similar speed.
Build Docker images for linux/arm64 (or multi-arch). Node, Python, Go, Java and Ruby run fine; check native modules and closed-source agents.
About South America (Sao Paulo)
Best latency for Brazil but one of the most expensive regions. Many teams serve Brazil from us-east-1 instead.
Moving data between availability zones costs about $0.01/GB each way.
The real bill for a small production setup
The server is rarely the biggest line. A typical setup behind a load balancer in a private network:
About per month$1,097
Load balancer: $0.034/h plus about $0.55/month in usage for 1 million requests. NAT gateway: $0.093/h plus $0.093/GB processed. Moving data between availability zones adds $0.01/GB each way. Skip the NAT gateway with public subnets or VPC endpoints to save $68/month. Prices for South America (Sao Paulo) from the AWS Price List API (2026-10-19). Both are covered by AWS credits.
Credits expire before you can use them all
$25,000 would run one r7g.4xlarge for about 2.1 years, but credits usually expire in 12 to 24 months. Spend the surplus on a managed database, staging environments or load testing instead of leaving it unused.
Credits pay on-demand and Spot usage, not upfront Savings Plan or Reserved Instance commitments. Buy commitments only once credits run low.
Database, disk and traffic
Managed database vs running it yourself
A managed PostgreSQL database (RDS db.t4g.medium, single zone, 20 GB) costs about $104/month in South America (Sao Paulo).
Running Postgres yourself on a second r7g.4xlarge costs about $998/month, but you handle backups, upgrades and failover.
Both are paid by AWS credits. Upfront fees for reserved databases are not.
Sending 1 TB a month to users
Straight from the server: about $135/month ($0.15/GB after the first 100 GB).
Through CloudFront: $0. Server-to-CloudFront traffic is free and the first 1 TB out each month is free (then $0.11/GB for South America edges).
RDS, CloudFront and transfer prices from the AWS Price List API; VPS prices from Hetzner and DigitalOcean, excluding VAT (2026-10-19).
Full monthly bill calculator
Instances rarely run alone. Add disk, a public IP and traffic to see the real bill and how long credits last.
Compute ($1.363/h)$995
gp3 storage ($0.1520/GB)$5
Public IPv4 ($0.0050/h)$4
Data out (after 100 GB free)$0
Monthly total$1,004
Credits last
$1,0001.0 mo
$5,0005.0 mo
$25,00025 mo
$100,00099+ mo
Credits usually expire in 12 to 24 months, so long runways are capped by expiry.
On demand vs Savings Plans, Reserved, Spot and Windows
| Pricing | Per hour | Per month | Saving | Note |
|---|---|---|---|---|
| On demand | $1.363 | $995 | 0% | Credits apply |
| Savings Plan, 1 year | $0.9891 | $722 | 27% | No upfront; credits can't buy the commitment |
| Savings Plan, 3-yr | $0.7074 | $516 | 48% | Compute Savings Plan, no upfront; credits can't buy the commitment |
| Reserved Instance, 3-yr | $0.6196 | $452 | 55% | Standard RI, no upfront; credits can't buy the commitment |
| Spot (average) | $0.3155 | $230 | 77% | Can be interrupted; credits apply |
| Windows on demand | n/a | n/a | n/a | AWS doesn't offer Windows on Arm (Graviton) servers |
r7g.4xlarge in other regions
| Region | Per hour | Per month | vs here | $25k lasts |
|---|---|---|---|---|
| Asia Pacific (Mumbai)ap-south-1 | $0.6006 | $438 | -56% | 57 mo |
| US East (N. Virginia)us-east-1 | $0.8568 | $625 | -37% | 40 mo |
| US East (Ohio)us-east-2 | $0.8568 | $625 | -37% | 40 mo |
| US West (Oregon)us-west-2 | $0.8568 | $625 | -37% | 40 mo |
| EU (Stockholm)eu-north-1 | $0.9112 | $665 | -33% | 38 mo |
| Canada (Central)ca-central-1 | $0.9384 | $685 | -31% | 36 mo |
| EU (Ireland)eu-west-1 | $0.9588 | $700 | -30% | 36 mo |
| EU (London)eu-west-2 | $1.006 | $735 | -26% | 34 mo |
| Asia Pacific (Sydney)ap-southeast-2 | $1.027 | $750 | -25% | 33 mo |
| EU (Frankfurt)eu-central-1 | $1.034 | $755 | -24% | 33 mo |
| Asia Pacific (Singapore)ap-southeast-1 | $1.034 | $755 | -24% | 33 mo |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.034 | $755 | -24% | 33 mo |
| Africa (Cape Town)af-south-1 | $1.142 | $834 | -16% | 30 mo |
| South America (Sao Paulo)sa-east-1 | $1.363 | $995 | — | 25 mo |
Right-size it
Linux, shared tenancy, from the AWS Price List API (2026-10-19). Network: Up to 15 Gbps. Taxes not included. AWS EC2 pricing
r7g.4xlarge in other regions
Alternatives in sa-east-1
- r7g.2xlarge · $0.6818/h
All r7g.4xlarge prices · All EC2 instances
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Questions
How much does r7g.4xlarge cost per month in sa-east-1?
$995 on demand for Linux running all 730 hours, before storage, public IPv4 and data transfer.
Can AWS credits pay for r7g.4xlarge?
Yes. Activate credits cover on-demand EC2 usage. They don't cover upfront Reserved Instances or Savings Plan commitments.
Is a Savings Plan worth it for r7g.4xlarge?
A 1-year Savings Plan brings it to $0.9891/h and 3 years to $0.7074/h. While credits last, on demand is usually better because credits can't buy the commitment.
Prices and credit amounts are estimates and may change. Check AWS for current terms.
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