r8i-flex.8xlargevsr8i.8xlarge

r8i-flex.8xlarge is 5% cheaper than r8i.8xlarge on demand in US East (N. Virginia), saving $81.18 a month.

At a glancer8i-flex.8xlarger8i.8xlarge
On-demand$2.111/hr5% less$2.223/hr
Lowest rate$0.7816/hrSpot, can be interrupted$0.6354/hr19% lessSpot, can be interrupted
Size32 vCPUs, 256 GiB32 vCPUs, 256 GiB
ProcessorIntel Xeon Scalable (Granite Rapids)Intel Xeon Scalable (Granite Rapids)
Architecturex86_64x86_64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.

Optionr8i-flex.8xlarger8i.8xlarger8i.8xlarge vs r8i-flex.8xlarge
On-demandPay by the hour$2.111$2.223▲ 5%
SpotCan be interrupted63% off$0.781671% off$0.6354▼ 19%
1-yr savings planHourly commitment28% off$1.5328% off$1.61▲ 5%
3-yr savings planHourly commitment48% off$1.10148% off$1.159▲ 5%

Key differences

The biggest lead each one has.

Where r8i-flex.8xlarge leads
On-demand price$2.111 vs $2.223 per hour
5% cheaper
Where r8i.8xlarge leads
Network baseline15 Gbps vs 7.5 Gbps
2× higher
EBS baseline bandwidth10,000 Mbps vs 5,000 Mbps
2× higher

Specs

9 of 40 specs differ. Those are in bold.

ComputeAll 10 matchr8i-flex.8xlarger8i.8xlarge
vCPUs3232
Physical cores1616
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable (Granite Rapids)Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Clock speed3.9 GHz3.9 GHz
Sustained clock3.9 GHz3.9 GHz
Processor featuresIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMXIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX
BurstableNoNo
MemoryAll 1 matchr8i-flex.8xlarger8i.8xlarge
Memory (GiB)256256
Networking2 of 8 differr8i-flex.8xlarger8i.8xlarge
NetworkUp to 15000 Megabit15000 Megabit
Network baseline7.5 Gbps15 Gbps
Network peak15 Gbps15 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1010
IPv4 addresses per interface5050
Storage4 of 11 differr8i-flex.8xlarger8i.8xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 10000 Mbps10000 Mbps
EBS baseline bandwidth5,000 Mbps10,000 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput625 MB/s1,250 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS20,00040,000
EBS max IOPS40,00040,000
Max EBS volumes3232
Instance details3 of 10 differr8i-flex.8xlarger8i.8xlarge
Familyr8i-flexr8i
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor6464
Bare metalNoNo
HypervisorNitroNitro
Placement groupsPartition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesNoYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r8i-flex.8xlarge first. Linux, USD per hour.

Regionr8i-flex.8xlarger8i.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.111$2.223▲ 5%
US East (Ohio)us-east-2$2.111$2.223▲ 5%
US West (Oregon)us-west-2$2.111$2.223▲ 5%
Asia Pacific (Malaysia)ap-southeast-5$2.165$2.279▲ 5%
Asia Pacific (Hyderabad)ap-south-2$2.179$2.293▲ 5%
Asia Pacific (Mumbai)ap-south-1$2.179$2.293▲ 5%
EU (Stockholm)eu-north-1$2.246$2.364▲ 5%
Canada (Central)ca-central-1$2.313$2.434▲ 5%
Canada West (Calgary)ca-west-1$2.313$2.434▲ 5%
US West (N. California)us-west-1$2.346$2.47▲ 5%
EU (Ireland)eu-west-1$2.363$2.487▲ 5%
Europe (Spain)eu-south-2$2.363$2.487▲ 5%
EU (London)eu-west-2$2.48$2.611▲ 5%
EU (Milan)eu-south-1$2.48$2.611▲ 5%
EU (Paris)eu-west-3$2.48$2.611▲ 5%
Asia Pacific (Sydney)ap-southeast-2$2.531$2.664▲ 5%
AWS GovCloud (US-East)us-gov-east-1$2.531$2.664▲ 5%
AWS GovCloud (US-West)us-gov-west-1$2.531$2.664▲ 5%
Asia Pacific (Seoul)ap-northeast-2$2.547$2.681▲ 5%
Asia Pacific (Singapore)ap-southeast-1$2.547$2.681▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$2.547$2.681▲ 5%
EU (Frankfurt)eu-central-1$2.547$2.681▲ 5%
Middle East (UAE)me-central-1$2.599$2.736▲ 5%
Asia Pacific (New Zealand)ap-southeast-6$2.657$2.797▲ 5%
Europe (Zurich)eu-central-2$2.802$2.949▲ 5%
Africa (Cape Town)af-south-1$2.815$2.963▲ 5%
South America (Sao Paulo)sa-east-1$3.368$3.546▲ 5%

Keep exploring

Each type’s own page, and how it compares with others.

r8i-flex.8xlargeMemory optimized, r8i-flex family
r8i-flex.8xlarge prices and specsEvery size in the r8i-flex family

Compare r8i-flex.8xlarge with

c8i-flex.8xlargem8i-flex.8xlarge
r8i.8xlargeMemory optimized, r8i family
r8i.8xlarge prices and specsEvery size in the r8i family

Compare r8i.8xlarge with

c8i.8xlargem8i.8xlarger8g.8xlarger8a.8xlarger8ib.8xlarger8id.8xlarger8idb.8xlarger8idn.8xlarger8in.8xlarger7i.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 48% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.