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r8in.8xlarge pricing and specs in EU (Ireland)

32 vCPU · 256 GiB · 50 Gigabit · Intel Xeon Scalable (Granite Rapids)

$3.7515/hour on-demand · $2,739/month (Linux, Shared)

r8in.8xlarge is a memory-optimized EC2 instance with 32 vCPU and 256 GiB, generation 8 of the r family. On-demand it costs $3.7515 an hour, about $2,739 a month if it runs all month. A one-year commitment with nothing up front works out at $2.3635 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 $1.5396 an hour, 59% below on-demand. The newer r8g.8xlarge offers the same size for $2.1094 an hour, 44% less and moves to Graviton. Across regions the cheapest place to run r8in.8xlarge is US East (N. Virginia) (us-east-1) at $3.3472 an hour, 11% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$3.7515$5.2235$4.0971$3.8765$3.8075
Spot$1.2711$1.8472———
1y Compute SP NU$2.7649$4.2368$3.1105$2.8247$2.8096
3y Compute SP NU$1.7706$3.2426$2.1162$1.8246$1.8071
1y EC2 SP NU$2.3635$3.8355$2.7091$2.4234$2.4083
3y EC2 SP NU$1.5396$3.0116$1.8852$1.5936$1.5761

Spot by AZ (7-day p50, Linux): eu-west-1a $1.7444 · eu-west-1c $1.2217 · eu-west-1b $1.2711

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.8xlarge (-44%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
r8g.8xlarge Graviton arch change$2.1094-44%+78%$1,199
r8i-flex.8xlarge$2.3629-37%+59%$1,014
r8i.8xlarge$2.4872-34%+51%$923
r8gd.8xlarge Graviton arch change$2.6128-30%+44%$831
r8a.8xlarge$2.8603-24%+31%$651
r8id.8xlarge$2.9568-21%+27%$580
r8ib.8xlarge$3.75150.0%0.0%$0
r8idb.8xlarge$4.1782+11%-10%$-312

Cheapest regions for r8in.8xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$3.3472-11%$295
US East (Ohio) us-east-2$3.3472-11%$295
US West (Oregon) us-west-2$3.3472-11%$295
Europe (Spain) eu-south-2$3.75150.0%$0
EU (Ireland) eu-west-1$3.7515current—
EU (Frankfurt) eu-central-1$3.9986+7%$-180

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$3.7515$5.2235——$1.2711
2026-10-21$3.7515$5.2235——$1.2433
2026-10-20$3.7515$5.2235——$1.2817
2026-10-19$3.7515$5.2235——$1.3156
2026-10-18$3.7515$5.2235——$1.3820
2026-10-17$3.7515$5.2235——$1.4047
2026-10-16$3.7515$5.2235——$1.3915
2026-10-15$3.7515$5.2235——$1.3499
2026-10-14$3.7515$5.2235——$1.3039
2026-10-13$3.7515$5.2235——$1.1887
2026-10-11$3.7515$5.2235——$1.1866
2026-10-10$3.7515$5.2235——$1.2322
2026-10-09$3.7515$5.2235——$1.2890
2026-10-08$3.7515$5.2235——$1.3413
2026-10-07$3.7515$5.2235——$1.3982
2026-10-06$3.7515$5.2235——$1.4531
2026-10-05$3.7515$5.2235——$1.4960
2026-10-04$3.7515$5.2235——$1.5146
2026-10-03$3.7515$5.2235——$1.5820
2026-10-02$3.7515$5.2235——$1.6506
2026-10-01$3.7515$5.2235——$1.6916
2026-09-30$3.7515$5.2235——$1.7693
2026-09-29$3.7515$5.2235——$1.8207
2026-09-28$3.7515$5.2235——$1.8868
2026-09-27$3.7515$5.2235——$1.9059
2026-09-26$3.7515$5.2235——$1.9192
2026-09-23$3.7515$5.2235——$1.9235
2026-09-22$3.7515$5.2235——$1.9231

All attributes

vCPU
32
Cores / threads per core
16 / 2
Memory
256 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
50 Gigabit
Network baseline / burst
50.0 / 50.0 Gbps
Max ENIs × IPv4 per ENI
8 × 50
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
10000 / 10000 Mbps
EBS IOPS (baseline / max)
40,000 / 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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