r8a.24xlargevsr8g.24xlarge

r8g.24xlarge is 26% cheaper than r8a.24xlarge on demand in US East (N. Virginia), saving $1,469.56 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 glancer8a.24xlarger8g.24xlarge
On-demand$7.668/hr$5.655/hr26% less
Lowest rate$1.122/hr39% lessSpot, can be interrupted$1.826/hrSpot, can be interrupted
Size96 vCPUs, 768 GiB96 vCPUs, 768 GiB
ProcessorAMD EPYC 9R45 ProcessorAWS Graviton4 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.

Optionr8a.24xlarger8g.24xlarger8g.24xlarge vs r8a.24xlarge
On-demandPay by the hour$7.668$5.655▼ 26%
SpotCan be interrupted85% off$1.12268% off$1.826▲ 63%
1-yr reservedNo upfront—34% off$3.741—
3-yr reservedNo upfront—55% off$2.565—
1-yr savings planHourly commitment28% off$5.55628% off$4.097▼ 26%
3-yr savings planHourly commitment48% off$4.0048% off$2.95▼ 26%

Key differences

The biggest lead each one has.

Where r8a.24xlarge leads
Clock speedUp to 4.5 GHz vs 2.7 GHz
67% higher
IPv4 addresses per interface64 vs 50
28% higher
Where r8g.24xlarge leads
On-demand price$5.655 vs $7.668 per hour
26% cheaper

Specs

12 of 40 specs differ. Those are in bold.

Compute6 of 10 differr8a.24xlarger8g.24xlarge
vCPUs9696
Physical cores9696
Threads per core11
Architecturex86_64arm64
ProcessorAMD EPYC 9R45 ProcessorAWS Graviton4 Processor
CPU makerAMDAWS
Clock speedUp to 4.5 GHz2.7 GHz
Sustained clock4.5 GHz2.8 GHz
Processor featuresAMD Turbo; AVX; AVX2; AVX512–
BurstableNoNo
MemoryAll 1 matchr8a.24xlarger8g.24xlarge
Memory (GiB)768768
Networking4 of 8 differr8a.24xlarger8g.24xlarge
Network40000 Megabit40 Gigabit
Network baseline40 Gbps40 Gbps
Network peak40 Gbps40 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoYes
IPv6YesYes
Max network interfaces1615
IPv4 addresses per interface6450
StorageAll 11 matchr8a.24xlarger8g.24xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput30000 Mbps30000 Mbps
EBS baseline bandwidth30,000 Mbps30,000 Mbps
EBS max bandwidth30,000 Mbps30,000 Mbps
EBS baseline throughput3,750 MB/s3,750 MB/s
EBS max throughput3,750 MB/s3,750 MB/s
EBS baseline IOPS120,000120,000
EBS max IOPS120,000120,000
Max EBS volumes6464
Instance details2 of 10 differr8a.24xlarger8g.24xlarge
Familyr8ar8g
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor192192
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFIUEFI

On-demand prices by region

Cheapest for r8a.24xlarge first. Linux, USD per hour.

Regionr8a.24xlarger8g.24xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$7.668$5.655▼ 26%
US East (Ohio)us-east-2$7.668$5.655▼ 26%
US West (Oregon)us-west-2$7.668$5.655▼ 26%
Canada (Central)ca-central-1$8.399$6.194▼ 26%
EU (Ireland)eu-west-1$8.581$6.328▼ 26%
Europe (Spain)eu-south-2$8.581$6.325▼ 26%
Asia Pacific (Tokyo)ap-northeast-1$9.251$6.822▼ 26%
EU (Frankfurt)eu-central-1$9.251$6.822▼ 26%

Keep exploring

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

r8a.24xlargeMemory optimized, r8a family
r8a.24xlarge prices and specsEvery size in the r8a family

Compare r8a.24xlarge with

r8i.24xlargec8a.24xlargem8a.24xlarger7a.24xlarge
r8g.24xlargeMemory optimized, r8g family
r8g.24xlarge prices and specsEvery size in the r8g family

Compare r8g.24xlarge with

c8g.24xlargem8g.24xlarger8gd.24xlarger8i.24xlarger8gb.24xlarger8gn.24xlarger9g.24xlarge

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.