PlatformHow it worksFinOps LeadershipPricingBlogEventsCalculatorFor FinanceFor EngineeringFor FinOpsAboutCareersContact Book a demo

r5dn.4xlarge pricing and specs in EU (Ireland)

16 vCPU · 128 GiB · Up to 25 Gigabit · Intel Xeon Platinum 8259 (Cascade Lake)

$1.4880/hour on-demand · $1,086/month (Linux, Shared)

r5dn.4xlarge is a memory-optimized EC2 instance with 16 vCPU and 128 GiB, generation 5 of the r family. On-demand it costs $1.4880 an hour, about $1,086 a month if it runs all month. A one-year commitment with nothing up front works out at $0.9370 an hour and pays for itself above roughly 459 hours a month; below that, on-demand is cheaper. The three-year options go down to $0.5413 an hour, 64% below on-demand. The newer r6g.4xlarge offers the same size for $0.9024 an hour, 39% less and moves to Graviton. Across regions the cheapest place to run r5dn.4xlarge is US East (N. Virginia) (us-east-1) at $1.3360 an hour, 10% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$1.4880$2.2240$1.6608—$1.5160
Spot$0.6842$1.0876———
1y Std RI NU$0.9370$1.6730$1.1102——
1y Std RI PU$0.8923$1.6284$1.0655——
1y Std RI AU$0.8750$1.6110$1.0477——
3y Std RI NU$0.6220$1.3580$0.7947——
3y Std RI PU$0.5759$1.3119$0.7487——
3y Std RI AU$0.5413$1.2773$0.7141——
1y Conv RI NU$1.1000$1.8360$1.2727——
3y Conv RI NU$0.7150$1.4510$0.8879——
1y Compute SP NU$1.1000$1.8360$1.2727—$1.1223
3y Compute SP NU$0.7150$1.4510$0.8879—$0.7334
1y EC2 SP NU$0.9370$1.6730$1.1102—$0.9598
3y EC2 SP NU$0.6220$1.3580$0.7947—$0.6402

Spot by AZ (7-day p50, Linux): eu-west-1b $0.6946 · eu-west-1a $0.6726 · eu-west-1c $0.6842

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 (-39%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
r6g.4xlarge Graviton arch change$0.9024-39%+65%$427
r7g.4xlarge Graviton arch change$0.9588-36%+55%$386
r6a.4xlarge$1.0152-32%+47%$345
r5a.4xlarge$1.0160-32%+46%$345
r6gd.4xlarge Graviton arch change$1.0240-31%+45%$339
r8g.4xlarge Graviton arch change$1.0547-29%+41%$316
r6i.4xlarge$1.1280-24%+32%$263
r5.4xlarge$1.1280-24%+32%$263

Cheapest regions for r5dn.4xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$1.3360-10%$111
US East (Ohio) us-east-2$1.3360-10%$111
US West (Oregon) us-west-2$1.3360-10%$111
EU (Stockholm) eu-north-1$1.4160-5%$53
EU (Ireland) eu-west-1$1.4880current—
EU (Milan) eu-south-1$1.5680+5%$-58

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
2026-10-21$1.4880$2.2240$0.9370$0.6220$0.6842
2026-10-20$1.4880$2.2240$0.9370$0.6220$0.6859
2026-10-19$1.4880$2.2240$0.9370$0.6220$0.6868
2026-10-18$1.4880$2.2240$0.9370$0.6220$0.6870
2026-10-16$1.4880$2.2240$0.9370$0.6220$0.6906
2026-10-15$1.4880$2.2240$0.9370$0.6220$0.6917
2026-10-14$1.4880$2.2240$0.9370$0.6220$0.6931
2026-10-13$1.4880$2.2240$0.9370$0.6220$0.6948
2026-10-12$1.4880$2.2240$0.9370$0.6220$0.6982
2026-10-11$1.4880$2.2240$0.9370$0.6220$0.7032
2026-10-10$1.4880$2.2240$0.9370$0.6220$0.7133
2026-10-09$1.4880$2.2240$0.9370$0.6220$0.7196
2026-10-08$1.4880$2.2240$0.9370$0.6220$0.7273
2026-10-07$1.4880$2.2240$0.9370$0.6220$0.7309
2026-10-06$1.4880$2.2240$0.9370$0.6220$0.7340
2026-10-05$1.4880$2.2240$0.9370$0.6220$0.7389
2026-10-04$1.4880$2.2240$0.9370$0.6220$0.7423
2026-09-30$1.4880$2.2240$0.9370$0.6220$0.7453
2026-09-29$1.4880$2.2240$0.9370$0.6220$0.7458
2026-09-26$1.4880$2.2240$0.9370$0.6220$0.7495
2026-09-23$1.4880$2.2240$0.9370$0.6220$0.7499
2026-09-22$1.4880$2.2240$0.9370$0.6220$0.7493

All attributes

vCPU
16
Cores / threads per core
8 / 2
Memory
128 GiB
Memory per vCPU
8.00 GiB
Processor
Intel Xeon Platinum 8259 (Cascade Lake)
Architecture
x86_64
Sustained clock
3.1 GHz
Hypervisor
nitro
Generation
Current
Burstable
No
Bare metal
No
Free tier eligible
No
Network performance
Up to 25 Gigabit
Network baseline / burst
16.25 / 25.0 Gbps
Max ENIs × IPv4 per ENI
8 × 30
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
4750 / 4750 Mbps
EBS IOPS (baseline / max)
18,750 / 18750
EBS NVMe
required
Instance storage
2 × 300 GB NVMe SSD
GPU
—
Placement groups
cluster, partition, spread
Hibernation / Nitro Enclaves
No / Yes
Dedicated hosts
Supported
Boot modes
legacy-bios, 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=eu-west-1&type=r5dn.4xlarge" width="420" height="260" style="border:1px solid #e2e8f0;border-radius:12px" loading="lazy" title="r5dn.4xlarge pricing by TruCost"></iframe>

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.

List prices are where it starts. Your bill is where it matters.

TruCost reads your actual AWS usage and tells you which of these commitments you should really buy, what your idle capacity costs, and where every dollar of the bill goes. Thirty minutes on your own data.

See it on your AWS bill
Book a demo