r7a.12xlargevsr8a.12xlarge

r7a.12xlarge is 5% cheaper than r8a.12xlarge on demand in US East (N. Virginia), saving $133.30 a month.

At a glancer7a.12xlarger8a.12xlarge
On-demand$3.652/hr5% less$3.834/hr
Lowest rate$0.7752/hrSpot, can be interrupted$0.7372/hr5% lessSpot, can be interrupted
Size48 vCPUs, 384 GiB48 vCPUs, 384 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.12xlarger8a.12xlarger8a.12xlarge vs r7a.12xlarge
On-demandPay by the hour$3.652$3.834▲ 5%
SpotCan be interrupted79% off$0.775281% off$0.7372▼ 5%
1-yr reservedNo upfront34% off$2.416——
3-yr reservedNo upfront55% off$1.656——
1-yr savings planHourly commitment28% off$2.64628% off$2.778▲ 5%
3-yr savings planHourly commitment48% off$1.90548% off$2.00▲ 5%

Key differences

The biggest lead each one has.

Where r7a.12xlarge leads
On-demand price$3.652 vs $3.834 per hour
5% cheaper
Where r8a.12xlarge leads
IPv4 addresses per interface64 vs 30
2.1× higher
Clock speedUp to 4.5 GHz vs Up to 3.7 GHz
22% higher

Specs

9 of 40 specs differ. Those are in bold.

Compute3 of 10 differr7a.12xlarger8a.12xlarge
vCPUs4848
Physical cores4848
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.12xlarger8a.12xlarge
Memory (GiB)384384
Networking5 of 8 differr7a.12xlarger8a.12xlarge
Network18750 Megabit22500 Megabit
Network baseline18.75 Gbps22.5 Gbps
Network peak18.75 Gbps22.5 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces812
IPv4 addresses per interface3064
StorageAll 11 matchr7a.12xlarger8a.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput15000 Mbps15000 Mbps
EBS baseline bandwidth15,000 Mbps15,000 Mbps
EBS max bandwidth15,000 Mbps15,000 Mbps
EBS baseline throughput1,875 MB/s1,875 MB/s
EBS max throughput1,875 MB/s1,875 MB/s
EBS baseline IOPS60,00060,000
EBS max IOPS60,00060,000
Max EBS volumes3232
Instance details1 of 10 differr7a.12xlarger8a.12xlarge
Familyr7ar8a
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor9696
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 r7a.12xlarge first. Linux, USD per hour.

Regionr7a.12xlarger8a.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$3.652$3.834▲ 5%
US East (Ohio)us-east-2$3.652$3.834▲ 5%
US West (Oregon)us-west-2$3.652$3.834▲ 5%
EU (Ireland)eu-west-1$4.086$4.29▲ 5%
Europe (Spain)eu-south-2$4.086$4.29▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$4.405$4.625▲ 5%
EU (Frankfurt)eu-central-1$4.405$4.625▲ 5%

Keep exploring

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

r7a.12xlargeMemory optimized, r7a family
r7a.12xlarge prices and specsEvery size in the r7a family

Compare r7a.12xlarge with

r7g.12xlarger7i.12xlargec7a.12xlargem7a.12xlarger6a.12xlarge
r8a.12xlargeMemory optimized, r8a family
r8a.12xlarge prices and specsEvery size in the r8a family

Compare r8a.12xlarge with

r8g.12xlarger8i.12xlargec8a.12xlargem8a.12xlarge

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.

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