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m8idb.16xlarge pricing and specs in EU (Ireland)

64 vCPU · 256 GiB · 66.66 Gigabit · Intel Xeon Scalable (Granite Rapids)

$6.8291/hour on-demand · $4,985/month (Linux, Shared)

m8idb.16xlarge is a general-purpose EC2 instance with 64 vCPU and 256 GiB, generation 8 of the m family. On-demand it costs $6.8291 an hour, about $4,985 a month if it runs all month. A one-year commitment with nothing up front works out at $4.3023 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 $2.9502 an hour, 57% below on-demand. The newer m8g.16xlarge offers the same size for $3.2013 an hour, 53% less and moves to Graviton. Across regions the cheapest place to run m8idb.16xlarge is US East (N. Virginia) (us-east-1) at $6.1101 an hour, 11% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$6.8291$9.7731$7.5203$6.9541$6.9411
Spot$2.2241$4.0923———
1y Compute SP NU$5.4783$8.4223$6.1695$5.5382$5.5679
3y Compute SP NU$3.4517$6.3957$4.1429$3.5057$3.5247
1y EC2 SP NU$4.3023$7.2463$4.9935$4.3623$4.3919
3y EC2 SP NU$2.9502$5.8942$3.6414$3.0042$3.0231

Spot by AZ (7-day p50, Linux): eu-west-1a $2.5658 · eu-west-1c $1.8824

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 → m8g.16xlarge (-53%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
m8g.16xlarge Graviton arch change$3.2013-53%+113%$2,648
m9g.16xlarge Graviton arch change$3.4893-49%+96%$2,438
m8i-flex.16xlarge$3.5862-47%+90%$2,367
m8i.16xlarge$3.7750-45%+81%$2,229
m8gd.16xlarge Graviton arch change$4.1152-40%+66%$1,981
m8a.16xlarge$4.3411-36%+57%$1,816
m9gd.16xlarge Graviton arch change$4.4858-34%+52%$1,711
m8id.16xlarge$4.6570-32%+47%$1,586

Cheapest regions for m8idb.16xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$6.1101-11%$525
US East (Ohio) us-east-2$6.1101-11%$525
US West (Oregon) us-west-2$6.1101-11%$525
Europe (Spain) eu-south-2$6.6886-2%$103
EU (Ireland) eu-west-1$6.8291current—
Asia Pacific (Tokyo) ap-northeast-1$7.8624+15%$-754

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$6.8291$9.7731——$2.2241
2026-10-21$6.8291$9.7731——$2.1725
2026-10-20$6.8291$9.7731——$2.1046
2026-10-19$6.8291$9.7731——$2.0215
2026-10-18$6.8291$9.7731——$1.9933
2026-10-17$6.8291$9.7731——$1.9781
2026-10-16$6.8291$9.7731——$1.9788
2026-10-15$6.8291$9.7731——$1.9853
2026-10-14$6.8291$9.7731——$1.9861
2026-10-13$6.8291$9.7731——$2.0222
2026-10-12$6.8291$9.7731——$2.0636
2026-10-11$6.8291$9.7731——$2.1238
2026-10-10$6.8291$9.7731——$2.1559
2026-10-09$6.8291$9.7731——$2.1780
2026-10-08$6.8291$9.7731——$2.2473
2026-10-07$6.8291$9.7731——$2.2832
2026-10-06$6.8291$9.7731——$2.3225
2026-10-05$6.8291$9.7731——$2.3330
2026-10-02$6.8291$9.7731——$2.3407
2026-10-01$6.8291$9.7731——$2.3410
2026-09-30$6.8291$9.7731——$2.2774
2026-09-29$6.8291$9.7731——$2.2252
2026-09-28$6.8291$9.7731——$2.1684
2026-09-27$6.8291$9.7731——$2.1246
2026-09-26$6.8291$9.7731——$2.1000
2026-09-25$6.8291$9.7731——$2.0443
2026-09-24$6.8291$9.7731——$2.0343
2026-09-23$6.8291$9.7731——$2.0332
2026-09-22$6.8291$9.7731——$2.0303

All attributes

vCPU
64
Cores / threads per core
32 / 2
Memory
256 GiB
Memory per vCPU
4.00 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
66.66 Gigabit
Network baseline / burst
66.666 / 66.666 Gbps
Max ENIs × IPv4 per ENI
16 × 64
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
50000 / 50000 Mbps
EBS IOPS (baseline / max)
240,000 / 240000
EBS NVMe
required
Instance storage
3800 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

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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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