r5a.8xlargevsr5ad.8xlarge

r5a.8xlarge is 14% cheaper than r5ad.8xlarge on demand in US East (N. Virginia), saving $210.24 a month.

At a glancer5a.8xlarger5ad.8xlarge
On-demand$1.808/hr14% less$2.096/hr
Lowest rate$0.5214/hr6% lessSpot, can be interrupted$0.5534/hrSpot, can be interrupted
Size32 vCPUs, 256 GiB32 vCPUs, 256 GiB
ProcessorAMD EPYC 7571AMD EPYC 7571
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.8xlarger5ad.8xlarger5ad.8xlarge vs r5a.8xlarge
On-demandPay by the hour$1.808$2.096▲ 16%
SpotCan be interrupted71% off$0.521474% off$0.5534▲ 6%
1-yr reservedNo upfront37% off$1.13937% off$1.32▲ 16%
3-yr reservedNo upfront57% off$0.78157% off$0.905▲ 16%
1-yr savings planHourly commitment27% off$1.31427% off$1.525▲ 16%
3-yr savings planHourly commitment48% off$0.94348% off$1.08▲ 15%

Key differences

The biggest lead each one has.

Where r5a.8xlarge leads
On-demand price$1.808 vs $2.096 per hour
14% cheaper
Max EBS volumes27 vs 25
8% higher
Where r5ad.8xlarge leads

No clear lead on the measures we compare.

Specs

4 of 41 specs differ. Those are in bold.

ComputeAll 10 matchr5a.8xlarger5ad.8xlarge
vCPUs3232
Physical cores1616
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7571AMD EPYC 7571
CPU makerAMDAMD
Clock speed2.5 GHz2.5 GHz
Sustained clock2.5 GHz2.5 GHz
Processor featuresAVX; AVX2; AMD TurboAVX; AVX2; AMD Turbo
BurstableNoNo
MemoryAll 1 matchr5a.8xlarger5ad.8xlarge
Memory (GiB)256256
NetworkingAll 8 matchr5a.8xlarger5ad.8xlarge
NetworkUp to 10 GigabitUp to 10 Gigabit
Network baseline7.5 Gbps7.5 Gbps
Network peak10 Gbps10 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage3 of 12 differr5a.8xlarger5ad.8xlarge
StorageEBS only2 x 600 NVMe SSD
Local disks–2 × 600 GB SSD
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput3500 Mbps3500 Mbps
EBS baseline bandwidth4,750 Mbps4,750 Mbps
EBS max bandwidth4,750 Mbps4,750 Mbps
EBS baseline throughput593.75 MB/s593.75 MB/s
EBS max throughput593.75 MB/s593.75 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS20,00020,000
Max EBS volumes2725
Instance details1 of 10 differr5a.8xlarger5ad.8xlarge
Familyr5ar5ad
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.8xlarger5ad.8xlargeDifference
Asia Pacific (Mumbai)ap-south-1$1.144$1.329▲ 16%
US East (N. Virginia)Used in summaryus-east-1$1.808$2.096▲ 16%
US East (Ohio)us-east-2$1.808$2.096▲ 16%
US West (Oregon)us-west-2$1.808$2.096▲ 16%
Canada (Central)ca-central-1$1.984$2.304▲ 16%
US West (N. California)us-west-1$2.016$2.368▲ 17%
EU (Ireland)eu-west-1$2.032$2.336▲ 15%
EU (London)eu-west-2$2.128$2.464▲ 16%
EU (Paris)eu-west-3$2.128$2.448▲ 15%
Asia Pacific (Seoul)ap-northeast-2$2.176$2.528▲ 16%
Asia Pacific (Singapore)ap-southeast-1$2.176$2.544▲ 17%
Asia Pacific (Sydney)ap-southeast-2$2.176$2.544▲ 17%
AWS GovCloud (US-West)us-gov-west-1$2.176$2.528▲ 16%
Asia Pacific (Tokyo)ap-northeast-1$2.192$2.544▲ 16%
EU (Frankfurt)eu-central-1$2.192$2.528▲ 15%
South America (Sao Paulo)sa-east-1$2.896$3.328▲ 15%

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.8xlarger6a.8xlarge
r5ad.8xlargeMemory optimized, r5ad family
r5ad.8xlarge prices and specsEvery size in the r5ad family

Compare r5ad.8xlarge with

c5ad.8xlarger5d.8xlargem5ad.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 57% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

Connect AWS account

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