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r8g.4xlarge pricing and specs in Asia Pacific (Mumbai)

16 vCPU · 128 GiB · Up to 15 Gigabit · AWS Graviton4 Processor Graviton

$0.6606/hour on-demand · $482/month (Linux, Shared)

r8g.4xlarge is a memory-optimized EC2 instance with 16 vCPU and 128 GiB, generation 8 of the r family on AWS Graviton (Arm). On-demand it costs $0.6606 an hour, about $482 a month if it runs all month. A one-year commitment with nothing up front works out at $0.4342 an hour and pays for itself above roughly 479 hours a month; below that, on-demand is cheaper. The three-year options go down to $0.2608 an hour, 61% below on-demand. The newer r8gd.4xlarge offers the same size for $0.7603 an hour, 15% more. Asia Pacific (Mumbai) is already the cheapest region for r8g.4xlarge.

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSE
On-Demand$0.6606—$0.8334$0.7856
Spot$0.3050———
1y Std RI NU$0.4342—$0.6070$0.4941
1y Std RI PU$0.4135—$0.5863$0.4733
1y Std RI AU$0.4053—$0.5780$0.4651
3y Std RI NU$0.2997—$0.4725$0.3537
3y Std RI PU$0.2775—$0.4503$0.3315
3y Std RI AU$0.2608—$0.4336$0.3148
1y Conv RI NU$0.4776—$0.6504$0.5375
3y Conv RI NU$0.3431—$0.5159$0.3971
1y Compute SP NU$0.4776—$0.6504$0.5375
3y Compute SP NU$0.3431—$0.5159$0.3971
1y EC2 SP NU$0.4342—$0.6070$0.4941
3y EC2 SP NU$0.2997—$0.4725$0.3537

Spot by AZ (7-day p50, Linux): ap-south-1b $0.3691 · ap-south-1c $0.2284 · ap-south-1a $0.3050

Newer generations of the same size

Same family letter and size in a newer generation, ranked by price. “vCPU per $” uses vCPU as the performance proxy — newer chips usually add more, so it is a floor.

Already Graviton
Type$/hPrice ΔvCPU per $ ΔSaves / mo
r8gd.4xlarge Graviton$0.7603+15%-13%$-73
r8i-flex.4xlarge arch change$1.0893+65%-39%$-313
r8i.4xlarge arch change$1.1466+74%-42%$-355
r8id.4xlarge arch change$1.3957+111%-53%$-537

Cheapest regions for r8g.4xlarge

RegionOn-Demand $/hvs ap-south-1Saves / mo
Asia Pacific (Mumbai) ap-south-1$0.6606current—
Asia Pacific (Hyderabad) ap-south-2$0.66060.0%$0
US East (N. Virginia) us-east-1$0.9426+43%$-206
US East (Ohio) us-east-2$0.9426+43%$-206
US West (Oregon) us-west-2$0.9426+43%$-206
Asia Pacific (Malaysia) ap-southeast-5$0.9664+46%$-223

Caveat: instance price is only part of the bill. Cross-region and internet data transfer, latency to your users, data-residency rules and service availability can outweigh a few percent on compute.

Price history (ap-south-1)

Daily snapshots since the catalog started tracking this type; a row is added whenever a headline price changes.

DateOD LinuxOD Windows1y RI3y RISpot p50
2026-10-15$0.6606—$0.4342$0.2997$0.3050
2026-10-13$0.6606—$0.4342$0.2997$0.3052
2026-10-12$0.6606—$0.4342$0.2997$0.3039
2026-10-09$0.6606—$0.4342$0.2997$0.3036
2026-10-08$0.6606—$0.4342$0.2997$0.3030
2026-10-07$0.6606—$0.4342$0.2997$0.3018
2026-10-06$0.6606—$0.4342$0.2997$0.2993
2026-10-05$0.6606—$0.4342$0.2997$0.2970
2026-10-04$0.6606—$0.4342$0.2997$0.2966
2026-10-03$0.6606—$0.4342$0.2997$0.2961
2026-10-02$0.6606—$0.4342$0.2997$0.2948
2026-10-01$0.6606—$0.4342$0.2997$0.2937
2026-09-30$0.6606—$0.4342$0.2997$0.2841
2026-09-29$0.6606—$0.4342$0.2997$0.2741
2026-09-25$0.6606—$0.4342$0.2997$0.2625
2026-09-24$0.6606—$0.4342$0.2997$0.2676
2026-09-23$0.6606—$0.4342$0.2997$0.2710
2026-09-22$0.6606—$0.4342$0.2997$0.2716

All attributes

vCPU
16
Cores / threads per core
16 / 1
Memory
128 GiB
Memory per vCPU
8.00 GiB
Processor
AWS Graviton4 Processor
Architecture
arm64
Sustained clock
2.8 GHz
Hypervisor
nitro
Generation
Current
Burstable
No
Bare metal
No
Free tier eligible
No
Network performance
Up to 15 Gigabit
Network baseline / burst
7.5 / 15.0 Gbps
Max ENIs × IPv4 per ENI
8 × 30
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
5000 / 10000 Mbps
EBS IOPS (baseline / max)
20,000 / 40000
EBS NVMe
required
Instance storage
EBS only
GPU
—
Placement groups
cluster, partition, spread
Hibernation / Nitro Enclaves
Yes / Yes
Dedicated hosts
Supported
Boot modes
uefi
Spot supported
Yes

Embed this price card

A tiny live widget for your docs or blog, with a “Powered by TruCost” link.

<iframe src="https://trucost.cloud/instances/embed?service=ec2&region=ap-south-1&type=r8g.4xlarge" width="420" height="260" style="border:1px solid #e2e8f0;border-radius:12px" loading="lazy" title="r8g.4xlarge pricing by TruCost"></iframe>

Public AWS list prices (USD), refreshed nightly (catalog 2026-10-15). RI and Savings Plan rates are effective hourly (upfront amortised over the term) and are charged for every hour of the term. Excludes taxes, data transfer and storage. How these numbers are sourced and checked. Not affiliated with Amazon Web Services.

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