r6a.8xlargevsr6g.8xlarge

r6g.8xlarge is 11% cheaper than r6a.8xlarge on demand in US East (N. Virginia), saving $147.17 a month. They use different processor architectures (x86_64 and arm64), so software built for one may need rebuilding to run on the other.

At a glancer6a.8xlarger6g.8xlarge
On-demand$1.814/hr$1.613/hr11% less
Lowest rate$0.3899/hrSpot, can be interrupted$0.3503/hr10% lessSpot, can be interrupted
Size32 vCPUs, 256 GiB32 vCPUs, 256 GiB
ProcessorAMD EPYC 7R13 ProcessorAWS Graviton2 Processor
Architecturex86_64arm64

Prices in US East (N. Virginia)

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

Optionr6a.8xlarger6g.8xlarger6g.8xlarge vs r6a.8xlarge
On-demandPay by the hour$1.814$1.613▼ 11%
SpotCan be interrupted79% off$0.389978% off$0.3503▼ 10%
1-yr reservedNo upfront34% off$1.2037% off$1.016▼ 15%
3-yr reservedNo upfront55% off$0.82357% off$0.6967▼ 15%
1-yr savings planHourly commitment28% off$1.31527% off$1.169▼ 11%
3-yr savings planHourly commitment48% off$0.946548% off$0.8432▼ 11%

Key differences

The biggest lead each one has.

Where r6a.8xlarge leads
Clock speed3.6 GHz vs 2.5 GHz
44% higher
EBS baseline bandwidth10,000 Mbps vs 9,500 Mbps
5% higher
Network baseline12.5 Gbps vs 12 Gbps
4% higher
Where r6g.8xlarge leads
On-demand price$1.613 vs $1.814 per hour
11% cheaper
Physical cores32 vs 16
2× higher

Specs

18 of 40 specs differ. Those are in bold.

Compute8 of 10 differr6a.8xlarger6g.8xlarge
vCPUs3232
Physical cores1632
Threads per core21
Architecturex86_64arm64
ProcessorAMD EPYC 7R13 ProcessorAWS Graviton2 Processor
CPU makerAMDAWS
Clock speed3.6 GHz2.5 GHz
Sustained clock3.6 GHz2.5 GHz
Processor featuresAMD Turbo; AVX; AVX2–
BurstableNoNo
MemoryAll 1 matchr6a.8xlarger6g.8xlarge
Memory (GiB)256256
Networking3 of 8 differr6a.8xlarger6g.8xlarge
Network12500 Megabit12 Gigabit
Network baseline12.5 Gbps12 Gbps
Network peak12.5 Gbps12 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage5 of 11 differr6a.8xlarger6g.8xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput6667 Mbps9000 Mbps
EBS baseline bandwidth10,000 Mbps9,500 Mbps
EBS max bandwidth10,000 Mbps9,500 Mbps
EBS baseline throughput1,250 MB/s1,187.5 MB/s
EBS max throughput1,250 MB/s1,187.5 MB/s
EBS baseline IOPS40,00040,000
EBS max IOPS40,00040,000
Max EBS volumes2727
Instance details2 of 10 differr6a.8xlarger6g.8xlarge
Familyr6ar6g
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor6464
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFIUEFI

On-demand prices by region

Cheapest for r6a.8xlarge first. Linux, USD per hour.

Regionr6a.8xlarger6g.8xlargeDifference
Asia Pacific (Hyderabad)ap-south-2$1.144$1.04▼ 9%
Asia Pacific (Mumbai)ap-south-1$1.144$1.04▼ 9%
US East (N. Virginia)Used in summaryus-east-1$1.814$1.613▼ 11%
US East (Ohio)us-east-2$1.814$1.613▼ 11%
US West (Oregon)us-west-2$1.814$1.613▼ 11%
Canada (Central)ca-central-1$1.987$1.766▼ 11%
US West (N. California)us-west-1$2.016$1.792▼ 11%
EU (Ireland)eu-west-1$2.03$1.805▼ 11%
EU (London)eu-west-2$2.131$1.894▼ 11%
Asia Pacific (Sydney)ap-southeast-2$2.174$1.933▼ 11%
Asia Pacific (Singapore)ap-southeast-1$2.189$1.946▼ 11%
Asia Pacific (Tokyo)ap-northeast-1$2.189$1.946▼ 11%
EU (Frankfurt)eu-central-1$2.189$1.946▼ 11%

Keep exploring

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

r6a.8xlargeMemory optimized, r6a family
r6a.8xlarge prices and specsEvery size in the r6a family

Compare r6a.8xlarge with

r6i.8xlargec6a.8xlargem6a.8xlarger5a.8xlarger7a.8xlarge
r6g.8xlargeMemory optimized, r6g family
r6g.8xlarge prices and specsEvery size in the r6g family

Compare r6g.8xlarge with

c6g.8xlargem6g.8xlarger6gd.8xlarger6i.8xlarger7g.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 55–57% 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.