r7a.4xlargevsr8a.4xlarge

r7a.4xlarge is 5% cheaper than r8a.4xlarge on demand in US East (N. Virginia), saving $44.46 a month.

At a glancer7a.4xlarger8a.4xlarge
On-demand$1.217/hr5% less$1.278/hr
Lowest rate$0.2437/hr27% lessSpot, can be interrupted$0.3356/hrSpot, can be interrupted
Size16 vCPUs, 128 GiB16 vCPUs, 128 GiB
ProcessorAMD EPYC 9R14 ProcessorAMD EPYC 9R45 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.

Optionr7a.4xlarger8a.4xlarger8a.4xlarge vs r7a.4xlarge
On-demandPay by the hour$1.217$1.278▲ 5%
SpotCan be interrupted80% off$0.243774% off$0.3356▲ 38%
1-yr reservedNo upfront34% off$0.8052——
3-yr reservedNo upfront55% off$0.5521——
1-yr savings planHourly commitment28% off$0.881928% off$0.926▲ 5%
3-yr savings planHourly commitment48% off$0.634948% off$0.6667▲ 5%

Key differences

The biggest lead each one has.

Where r7a.4xlarge leads
On-demand price$1.217 vs $1.278 per hour
5% cheaper
Where r8a.4xlarge leads
IPv4 addresses per interface40 vs 30
33% higher
Clock speedUp to 4.5 GHz vs Up to 3.7 GHz
22% higher

Specs

8 of 40 specs differ. Those are in bold.

Compute3 of 10 differr7a.4xlarger8a.4xlarge
vCPUs1616
Physical cores1616
Threads per core11
Architecturex86_64x86_64
ProcessorAMD EPYC 9R14 ProcessorAMD EPYC 9R45 Processor
CPU makerAMDAMD
Clock speedUp to 3.7 GHzUp to 4.5 GHz
Sustained clock3.7 GHz4.5 GHz
Processor featuresAMD Turbo; AVX; AVX2; AVX512AMD Turbo; AVX; AVX2; AVX512
BurstableNoNo
MemoryAll 1 matchr7a.4xlarger8a.4xlarge
Memory (GiB)128128
Networking4 of 8 differr7a.4xlarger8a.4xlarge
NetworkUp to 12500 MegabitUp to 15000 Megabit
Network baseline6.25 Gbps7.5 Gbps
Network peak12.5 Gbps15 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3040
StorageAll 11 matchr7a.4xlarger8a.4xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 10000 MbpsUp to 10000 Mbps
EBS baseline bandwidth5,000 Mbps5,000 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput625 MB/s625 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS40,00040,000
Max EBS volumes3232
Instance details1 of 10 differr7a.4xlarger8a.4xlarge
Familyr7ar8a
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor3232
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r7a.4xlarge first. Linux, USD per hour.

Regionr7a.4xlarger8a.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.217$1.278▲ 5%
US East (Ohio)us-east-2$1.217$1.278▲ 5%
US West (Oregon)us-west-2$1.217$1.278▲ 5%
EU (Ireland)eu-west-1$1.362$1.43▲ 5%
Europe (Spain)eu-south-2$1.362$1.43▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$1.468$1.542▲ 5%
EU (Frankfurt)eu-central-1$1.468$1.542▲ 5%

Keep exploring

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

r7a.4xlargeMemory optimized, r7a family
r7a.4xlarge prices and specsEvery size in the r7a family

Compare r7a.4xlarge with

r7g.4xlarger7i.4xlargec7a.4xlargem7a.4xlarger6a.4xlarge
r8a.4xlargeMemory optimized, r8a family
r8a.4xlarge prices and specsEvery size in the r8a family

Compare r8a.4xlarge with

r8g.4xlarger8i.4xlargec8a.4xlargem8a.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 48–55% 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.