r8g.12xlargevsr8gb.12xlarge

r8g.12xlarge is 35% cheaper than r8gb.12xlarge on demand in US East (N. Virginia), saving $1,127.56 a month.

At a glancer8g.12xlarger8gb.12xlarge
On-demand$2.828/hr35% less$4.372/hr
Lowest rate$0.6649/hr47% lessSpot, can be interrupted$1.246/hrSpot, can be interrupted
Size48 vCPUs, 384 GiB48 vCPUs, 384 GiB
ProcessorAWS Graviton4 ProcessorAWS Graviton4 Processor
Architecturearm64arm64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.

Optionr8g.12xlarger8gb.12xlarger8gb.12xlarge vs r8g.12xlarge
On-demandPay by the hour$2.828$4.372▲ 55%
SpotCan be interrupted76% off$0.664971% off$1.246▲ 87%
1-yr reservedNo upfront34% off$1.871——
3-yr reservedNo upfront55% off$1.283——
1-yr savings planHourly commitment28% off$2.04928% off$3.168▲ 55%
3-yr savings planHourly commitment48% off$1.47553% off$2.04▲ 38%

Key differences

The biggest lead each one has.

Where r8g.12xlarge leads
On-demand price$2.828 vs $4.372 per hour
35% cheaper
Where r8gb.12xlarge leads
EBS baseline IOPS360,000 vs 60,000
6× higher
Network baseline100 Gbps vs 22.5 Gbps
4.4× higher
Clock speed2.8 GHz vs 2.7 GHz
4% higher

Specs

13 of 39 specs differ. Those are in bold.

Compute1 of 9 differr8g.12xlarger8gb.12xlarge
vCPUs4848
Physical cores4848
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4 ProcessorAWS Graviton4 Processor
CPU makerAWSAWS
Clock speed2.7 GHz2.8 GHz
Sustained clock2.8 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchr8g.12xlarger8gb.12xlarge
Memory (GiB)384384
Networking4 of 8 differr8g.12xlarger8gb.12xlarge
Network22.5 Gigabit100 Gigabit
Network baseline22.5 Gbps100 Gbps
Network peak22.5 Gbps100 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces812
IPv4 addresses per interface3030
Storage7 of 11 differr8g.12xlarger8gb.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput15000 Mbps75000 Mbps
EBS baseline bandwidth15,000 Mbps75,000 Mbps
EBS max bandwidth15,000 Mbps75,000 Mbps
EBS baseline throughput1,875 MB/s9,375 MB/s
EBS max throughput1,875 MB/s9,375 MB/s
EBS baseline IOPS60,000360,000
EBS max IOPS60,000360,000
Max EBS volumes3232
Instance details1 of 10 differr8g.12xlarger8gb.12xlarge
Familyr8gr8gb
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor9696
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesUEFIUEFI

On-demand prices by region

Cheapest for r8g.12xlarge first. Linux, USD per hour.

Regionr8g.12xlarger8gb.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.828$4.372▲ 55%
US West (Oregon)us-west-2$2.828$4.372▲ 55%

Keep exploring

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

r8g.12xlargeMemory optimized, r8g family
r8g.12xlarge prices and specsEvery size in the r8g family

Compare r8g.12xlarge with

c8g.12xlargem8g.12xlarger8gd.12xlarger8i.12xlarger8a.12xlarger8gn.12xlarger7g.12xlarger9g.12xlarge
r8gb.12xlargeMemory optimized, r8gb family
r8gb.12xlarge prices and specsEvery size in the r8gb family

Compare r8gb.12xlarge with

c8gb.12xlarger8ib.12xlargem8gb.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 53–55% 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.