PlatformHow it worksFinOps LeadershipPricingBlogEventsCalculatorFor FinanceFor EngineeringFor FinOpsAboutCareersContact Book a demo

r8in.12xlarge pricing and specs in EU (Ireland)

48 vCPU · 384 GiB · 75 Gigabit · Intel Xeon Scalable (Granite Rapids)

$5.6273/hour on-demand · $4,108/month (Linux, Shared)

r8in.12xlarge is a memory-optimized EC2 instance with 48 vCPU and 384 GiB, generation 8 of the r family. On-demand it costs $5.6273 an hour, about $4,108 a month if it runs all month. A one-year commitment with nothing up front works out at $3.5452 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 $2.3094 an hour, 59% below on-demand. The newer r8g.12xlarge offers the same size for $3.1642 an hour, 44% less and moves to Graviton. Across regions the cheapest place to run r8in.12xlarge is US East (N. Virginia) (us-east-1) at $5.0208 an hour, 11% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$5.6273$7.8353$6.1457$5.7523$5.7113
Spot$2.0129$2.7707———
1y Compute SP NU$4.1473$6.3553$4.6657$4.2072$4.2145
3y Compute SP NU$2.6559$4.8639$3.1742$2.7098$2.7106
1y EC2 SP NU$3.5452$5.7532$4.0636$3.6051$3.6124
3y EC2 SP NU$2.3094$4.5174$2.8278$2.3634$2.3642

Spot by AZ (7-day p50, Linux): eu-west-1c $2.0129 · eu-west-1a $2.2265 · eu-west-1b $1.5655

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 → r8g.12xlarge (-44%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
r8g.12xlarge Graviton arch change$3.1642-44%+78%$1,798
r8i-flex.12xlarge$3.5443-37%+59%$1,521
r8i.12xlarge$3.7308-34%+51%$1,384
r8gd.12xlarge Graviton arch change$3.9192-30%+44%$1,247
r8a.12xlarge$4.2905-24%+31%$976
r8id.12xlarge$4.4352-21%+27%$870
r8ib.12xlarge$5.62730.0%0.0%$0
r8idb.12xlarge$6.2674+11%-10%$-467

Cheapest regions for r8in.12xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$5.0208-11%$443
US East (Ohio) us-east-2$5.0208-11%$443
US West (Oregon) us-west-2$5.0208-11%$443
Europe (Spain) eu-south-2$5.62730.0%$0
EU (Ireland) eu-west-1$5.6273current—
EU (Frankfurt) eu-central-1$5.9978+7%$-271

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$5.6273$7.8353——$2.0129
2026-10-21$5.6273$7.8353——$2.0147
2026-10-20$5.6273$7.8353——$2.0154
2026-10-19$5.6273$7.8353——$2.0476
2026-10-18$5.6273$7.8353——$2.0745
2026-10-17$5.6273$7.8353——$2.1640
2026-10-16$5.6273$7.8353——$2.1823
2026-10-15$5.6273$7.8353——$2.1956
2026-10-14$5.6273$7.8353——$2.2250
2026-10-13$5.6273$7.8353——$2.2452
2026-10-12$5.6273$7.8353——$2.2678
2026-10-11$5.6273$7.8353——$2.2798
2026-10-07$5.6273$7.8353——$2.3191
2026-10-06$5.6273$7.8353——$2.2669
2026-10-05$5.6273$7.8353——$2.1562
2026-10-04$5.6273$7.8353——$2.0678
2026-10-03$5.6273$7.8353——$1.9910
2026-10-02$5.6273$7.8353——$1.9153
2026-10-01$5.6273$7.8353——$1.8123
2026-09-30$5.6273$7.8353——$1.7325
2026-09-29$5.6273$7.8353——$1.6381
2026-09-28$5.6273$7.8353——$1.6088
2026-09-27$5.6273$7.8353——$1.6392
2026-09-26$5.6273$7.8353——$1.6965
2026-09-25$5.6273$7.8353——$1.7274
2026-09-24$5.6273$7.8353——$1.7344
2026-09-23$5.6273$7.8353——$1.7429
2026-09-22$5.6273$7.8353——$1.6856

All attributes

vCPU
48
Cores / threads per core
24 / 2
Memory
384 GiB
Memory per vCPU
8.00 GiB
Processor
Intel Xeon Scalable (Granite Rapids)
Architecture
x86_64
Sustained clock
3.9 GHz
Hypervisor
nitro
Generation
Current
Burstable
No
Bare metal
No
Free tier eligible
No
Network performance
75 Gigabit
Network baseline / burst
75.0 / 75.0 Gbps
Max ENIs × IPv4 per ENI
12 × 50
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
15000 / 15000 Mbps
EBS IOPS (baseline / max)
60,000 / 60000
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

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=r8in.12xlarge" width="420" height="260" style="border:1px solid #e2e8f0;border-radius:12px" loading="lazy" title="r8in.12xlarge 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