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m8i-flex.16xlarge pricing and specs in EU (Ireland)

64 vCPU · 256 GiB · Up to 30 Gigabit · Intel Xeon Scalable (Granite Rapids)

$3.5862/hour on-demand · $2,618/month (Linux, Shared)

m8i-flex.16xlarge is a general-purpose EC2 instance with 64 vCPU and 256 GiB, generation 8 of the m family. On-demand it costs $3.5862 an hour, about $2,618 a month if it runs all month. A one-year commitment with nothing up front works out at $2.3723 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 $1.6268 an hour, 55% below on-demand. The newer m8g.16xlarge offers the same size for $3.2013 an hour, 11% less and moves to Graviton. Across regions the cheapest place to run m8i-flex.16xlarge is US East (N. Virginia) (us-east-1) at $3.2176 an hour, 10% below EU (Ireland).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$3.5862$6.3830$4.2774$3.7112$3.6982
Spot$1.5333$3.1989———
1y Compute SP NU$2.7222$5.5190$3.4134$2.7821$2.8118
3y Compute SP NU$1.8844$4.6812$2.5756$1.9384$1.9573
1y EC2 SP NU$2.3723$5.1691$3.0635$2.4322$2.4619
3y EC2 SP NU$1.6268$4.4236$2.3180$1.6808$1.6998

Spot by AZ (7-day p50, Linux): eu-west-1a $1.8729 · eu-west-1b $1.4995 · eu-west-1c $1.5333

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 (-11%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
m8g.16xlarge Graviton arch change$3.2013-11%+12%$281
m9g.16xlarge Graviton arch change$3.4893-3%+3%$71
m8i.16xlarge$3.7750+5%-5%$-138
m8gd.16xlarge Graviton arch change$4.1152+15%-13%$-386
m8a.16xlarge$4.3411+21%-17%$-551
m9gd.16xlarge Graviton arch change$4.4858+25%-20%$-657
m8id.16xlarge$4.6570+30%-23%$-782
m8gn.16xlarge Graviton arch change$5.2038+45%-31%$-1,181

Cheapest regions for m8i-flex.16xlarge

RegionOn-Demand $/hvs eu-west-1Saves / mo
US East (N. Virginia) us-east-1$3.2176-10%$269
US East (Ohio) us-east-2$3.2176-10%$269
US West (Oregon) us-west-2$3.2176-10%$269
Asia Pacific (Mumbai) ap-south-1$3.3853-6%$147
Asia Pacific (Hyderabad) ap-south-2$3.3853-6%$147
Asia Pacific (Malaysia) ap-southeast-5$3.4186-5%$122

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$3.5862$6.3830——$1.5333
2026-10-21$3.5862$6.3830——$1.5580
2026-10-20$3.5862$6.3830——$1.5968
2026-10-19$3.5862$6.3830——$1.6669
2026-10-18$3.5862$6.3830——$1.6846
2026-10-14$3.5862$6.3830——$1.6929
2026-10-13$3.5862$6.3830——$1.6856
2026-10-12$3.5862$6.3830——$1.6740
2026-10-11$3.5862$6.3830——$1.6680
2026-10-08$3.5862$6.3830——$1.6639
2026-10-07$3.5862$6.3830——$1.6654
2026-10-06$3.5862$6.3830——$1.6680
2026-10-05$3.5862$6.3830——$1.6851
2026-10-03$3.5862$6.3830——$1.6854
2026-10-02$3.5862$6.3830——$1.6886
2026-10-01$3.5862$6.3830——$1.6933
2026-09-30$3.5862$6.3830——$1.6949
2026-09-29$3.5862$6.3830——$1.7021
2026-09-28$3.5862$6.3830——$1.7185
2026-09-27$3.5862$6.3830——$1.7451
2026-09-26$3.5862$6.3830——$1.7256
2026-09-25$3.5862$6.3830——$1.7167
2026-09-24$3.5862$6.3830——$1.7146
2026-09-23$3.5862$6.3830——$1.7073
2026-09-22$3.5862$6.3830——$1.7009

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
Up to 30 Gigabit
Network baseline / burst
15.0 / 30.0 Gbps
Max ENIs × IPv4 per ENI
16 × 64
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
10000 / 20000 Mbps
EBS IOPS (baseline / max)
40,000 / 80000
EBS NVMe
required
Instance storage
EBS only
GPU
—
Placement groups
partition, spread
Hibernation / Nitro Enclaves
No / No
Dedicated hosts
—
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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