r5a.8xlargevsr6a.8xlarge

r5a.8xlarge is 0% cheaper than r6a.8xlarge on demand in US East (N. Virginia), saving $4.67 a month.

At a glancer5a.8xlarger6a.8xlarge
On-demand$1.808/hr0% less$1.814/hr
Lowest rate$0.5214/hrSpot, can be interrupted$0.3899/hr25% lessSpot, can be interrupted
Size32 vCPUs, 256 GiB32 vCPUs, 256 GiB
ProcessorAMD EPYC 7571AMD EPYC 7R13 Processor
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.

Optionr5a.8xlarger6a.8xlarger6a.8xlarge vs r5a.8xlarge
On-demandPay by the hour$1.808$1.814Same
SpotCan be interrupted71% off$0.521479% off$0.3899▼ 25%
1-yr reservedNo upfront37% off$1.13934% off$1.20▲ 5%
3-yr reservedNo upfront57% off$0.78155% off$0.823▲ 5%
1-yr savings planHourly commitment27% off$1.31428% off$1.315Same
3-yr savings planHourly commitment48% off$0.94348% off$0.9465Same

Key differences

The biggest lead each one has.

Where r5a.8xlarge leads
On-demand price$1.808 vs $1.814 per hour
0% cheaper
Where r6a.8xlarge leads
EBS baseline bandwidth10,000 Mbps vs 4,750 Mbps
2.1× higher
Network baseline12.5 Gbps vs 7.5 Gbps
67% higher
Clock speed3.6 GHz vs 2.5 GHz
44% higher

Specs

15 of 40 specs differ. Those are in bold.

Compute4 of 10 differr5a.8xlarger6a.8xlarge
vCPUs3232
Physical cores1616
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7571AMD EPYC 7R13 Processor
CPU makerAMDAMD
Clock speed2.5 GHz3.6 GHz
Sustained clock2.5 GHz3.6 GHz
Processor featuresAVX; AVX2; AMD TurboAMD Turbo; AVX; AVX2
BurstableNoNo
MemoryAll 1 matchr5a.8xlarger6a.8xlarge
Memory (GiB)256256
Networking3 of 8 differr5a.8xlarger6a.8xlarge
NetworkUp to 10 Gigabit12500 Megabit
Network baseline7.5 Gbps12.5 Gbps
Network peak10 Gbps12.5 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage7 of 11 differr5a.8xlarger6a.8xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput3500 Mbps6667 Mbps
EBS baseline bandwidth4,750 Mbps10,000 Mbps
EBS max bandwidth4,750 Mbps10,000 Mbps
EBS baseline throughput593.75 MB/s1,250 MB/s
EBS max throughput593.75 MB/s1,250 MB/s
EBS baseline IOPS20,00040,000
EBS max IOPS20,00040,000
Max EBS volumes2727
Instance details1 of 10 differr5a.8xlarger6a.8xlarge
Familyr5ar6a
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor6464
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r5a.8xlarge first. Linux, USD per hour.

Regionr5a.8xlarger6a.8xlargeDifference
Asia Pacific (Mumbai)ap-south-1$1.144$1.144Same
US East (N. Virginia)Used in summaryus-east-1$1.808$1.814Same
US East (Ohio)us-east-2$1.808$1.814Same
US West (Oregon)us-west-2$1.808$1.814Same
Canada (Central)ca-central-1$1.984$1.987Same
US West (N. California)us-west-1$2.016$2.016Same
EU (Ireland)eu-west-1$2.032$2.03Same
EU (London)eu-west-2$2.128$2.131Same
Asia Pacific (Singapore)ap-southeast-1$2.176$2.189▲ 1%
Asia Pacific (Sydney)ap-southeast-2$2.176$2.174Same
Asia Pacific (Tokyo)ap-northeast-1$2.192$2.189Same
EU (Frankfurt)eu-central-1$2.192$2.189Same

Keep exploring

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

r5a.8xlargeMemory optimized, r5a family
r5a.8xlarge prices and specsEvery size in the r5a family

Compare r5a.8xlarge with

c5a.8xlarger5.8xlargem5a.8xlarger5ad.8xlarge
r6a.8xlargeMemory optimized, r6a family
r6a.8xlarge prices and specsEvery size in the r6a family

Compare r6a.8xlarge with

r6g.8xlarger6i.8xlargec6a.8xlargem6a.8xlarger7a.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.