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r6i.4xlarge pricing and specs in EU (Ireland)

16 vCPU · 128 GiB · Up to 12.5 Gigabit · Intel Xeon 8375C (Ice Lake) previous generation

$1.1280/hour on-demand · $823/month (Linux, Shared)

r6i.4xlarge is a memory-optimized EC2 instance with 16 vCPU and 128 GiB, generation 6 of the r family; AWS lists it as a previous generation. On-demand it costs $1.1280 an hour, about $823 a month if it runs all month. A one-year commitment with nothing up front works out at $0.7462 an hour and pays for itself above roughly 482 hours a month; below that, on-demand is cheaper. The three-year options go down to $0.4453 an hour, 61% below on-demand. The newer r6g.4xlarge offers the same size for $0.9024 an hour, 20% less and moves to Graviton. Across regions the cheapest place to run r6i.4xlarge is US East (N. Virginia) (us-east-1) at $1.0080 an hour, 11% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$1.1280$1.8640$1.3008$1.2530$1.1560
Spot$0.5374$1.0025———
1y Std RI NU$0.7462$1.4822$0.9190$0.8062—
1y Std RI PU$0.7107$1.4466$0.8835$0.7706—
1y Std RI AU$0.6965$1.4324$0.8692$0.7564—
3y Std RI NU$0.5117$1.2477$0.6845$0.5657—
3y Std RI PU$0.4738$1.2098$0.6466$0.5278—
3y Std RI AU$0.4453$1.1813$0.6182$0.4993—
1y Conv RI NU$0.8172$1.5532$0.9900$0.8772—
3y Conv RI NU$0.5884$1.3244$0.7612$0.6424—
1y Compute SP NU$0.8172$1.5532$0.9900$0.8771$0.8396
3y Compute SP NU$0.5884$1.3244$0.7612$0.6424$0.6067
1y EC2 SP NU$0.7462$1.4822$0.9190$0.8061$0.7686
3y EC2 SP NU$0.5117$1.2477$0.6845$0.5657$0.5299

Spot by AZ (7-day p50, Linux): eu-west-1a $0.5374 · eu-west-1b $0.5247 · eu-west-1c $0.5683

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.

Graviton-eligible → r6g.4xlarge (-20%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
r6g.4xlarge Graviton arch change$0.9024-20%+25%$165
r7g.4xlarge Graviton arch change$0.9588-15%+18%$124
r6a.4xlarge$1.0152-10%+11%$82
r6gd.4xlarge Graviton arch change$1.0240-9%+10%$76
r8g.4xlarge Graviton arch change$1.0547-6%+7%$53
r8i-flex.4xlarge$1.1814+5%-5%$-39
r7i.4xlarge$1.1844+5%-5%$-41
r7gd.4xlarge Graviton arch change$1.2096+7%-7%$-60

Cheapest regions for r6i.4xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$1.0080-11%$88
US East (Ohio) us-east-2$1.0080-11%$88
US West (Oregon) us-west-2$1.0080-11%$88
Asia Pacific (Malaysia) ap-southeast-5$1.0336-8%$69
Asia Pacific (Thailand) ap-southeast-7$1.0336-8%$69
Asia Pacific (Mumbai) ap-south-1$1.0400-8%$64

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 (eu-west-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
2026-10-22$1.1280$1.8640$0.7462$0.5117$0.5374
2026-10-21$1.1280$1.8640$0.7462$0.5117$0.5372
2026-10-20$1.1280$1.8640$0.7462$0.5117$0.5371
2026-10-19$1.1280$1.8640$0.7462$0.5117$0.5327
2026-10-18$1.1280$1.8640$0.7462$0.5117$0.5256
2026-10-17$1.1280$1.8640$0.7462$0.5117$0.5231
2026-10-14$1.1280$1.8640$0.7462$0.5117$0.5218
2026-10-13$1.1280$1.8640$0.7462$0.5117$0.5240
2026-10-12$1.1280$1.8640$0.7462$0.5117$0.5274
2026-10-11$1.1280$1.8640$0.7462$0.5117$0.5287
2026-10-10$1.1280$1.8640$0.7462$0.5117$0.5301
2026-10-09$1.1280$1.8640$0.7462$0.5117$0.5312
2026-10-05$1.1280$1.8640$0.7462$0.5117$0.5322
2026-10-03$1.1280$1.8640$0.7462$0.5117$0.5327
2026-09-30$1.1280$1.8640$0.7462$0.5117$0.5325
2026-09-29$1.1280$1.8640$0.7462$0.5117$0.5337
2026-09-28$1.1280$1.8640$0.7462$0.5117$0.5346
2026-09-27$1.1280$1.8640$0.7462$0.5117$0.5354
2026-09-26$1.1280$1.8640$0.7462$0.5117$0.5363
2026-09-25$1.1280$1.8640$0.7462$0.5117$0.5374
2026-09-24$1.1280$1.8640$0.7462$0.5117$0.5397
2026-09-23$1.1280$1.8640$0.7462$0.5117$0.5430
2026-09-22$1.1280$1.8640$0.7462$0.5117$0.5523

All attributes

vCPU
16
Cores / threads per core
8 / 2
Memory
128 GiB
Memory per vCPU
8.00 GiB
Processor
Intel Xeon 8375C (Ice Lake)
Architecture
x86_64
Sustained clock
3.5 GHz
Hypervisor
nitro
Generation
Previous
Burstable
No
Bare metal
No
Free tier eligible
No
Network performance
Up to 12.5 Gigabit
Network baseline / burst
6.25 / 12.5 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
No / Yes
Dedicated hosts
Supported
Boot modes
legacy-bios, uefi
Spot supported
Yes

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Public AWS list prices (USD), refreshed nightly (catalog 2026-10-22). 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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