r8g.16xlargevsr9g.16xlarge

r8g.16xlarge is 8% cheaper than r9g.16xlarge on demand in US East (N. Virginia), saving $247.62 a month.

At a glancer8g.16xlarger9g.16xlarge
On-demand$3.77/hr8% less$4.109/hr
Lowest rate$0.8157/hrSpot, can be interrupted$0.8035/hr1% lessSpot, can be interrupted
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
ProcessorAWS Graviton4 ProcessorAWS Graviton5 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.16xlarger9g.16xlarger9g.16xlarge vs r8g.16xlarge
On-demandPay by the hour$3.77$4.109▲ 9%
SpotCan be interrupted78% off$0.815780% off$0.8035▼ 1%
1-yr reservedNo upfront34% off$2.494——
3-yr reservedNo upfront55% off$1.71——
1-yr savings planHourly commitment28% off$2.73228% off$2.977▲ 9%
3-yr savings planHourly commitment48% off$1.96748% off$2.144▲ 9%

Key differences

The biggest lead each one has.

Where r8g.16xlarge leads
On-demand price$3.77 vs $4.109 per hour
8% cheaper
Where r9g.16xlarge leads
IPv4 addresses per interface64 vs 50
28% higher
Clock speed3.3 GHz vs 2.7 GHz
22% higher
EBS baseline bandwidth24,000 Mbps vs 20,000 Mbps
20% higher

Specs

16 of 39 specs differ. Those are in bold.

Compute3 of 9 differr8g.16xlarger9g.16xlarge
vCPUs6464
Physical cores6464
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4 ProcessorAWS Graviton5 Processor
CPU makerAWSAWS
Clock speed2.7 GHz3.3 GHz
Sustained clock2.8 GHz3.3 GHz
BurstableNoNo
MemoryAll 1 matchr8g.16xlarger9g.16xlarge
Memory (GiB)512512
Networking5 of 8 differr8g.16xlarger9g.16xlarge
Network30 Gigabit34 Gigabit
Network baseline30 Gbps34 Gbps
Network peak30 Gbps34 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1516
IPv4 addresses per interface5064
Storage7 of 11 differr8g.16xlarger9g.16xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput20000 Mbps24000 Mbps
EBS baseline bandwidth20,000 Mbps24,000 Mbps
EBS max bandwidth20,000 Mbps24,000 Mbps
EBS baseline throughput2,500 MB/s3,000 MB/s
EBS max throughput2,500 MB/s3,000 MB/s
EBS baseline IOPS80,00096,000
EBS max IOPS80,00096,000
Max EBS volumes4848
Instance details1 of 10 differr8g.16xlarger9g.16xlarge
Familyr8gr9g
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128128
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesUEFIUEFI

On-demand prices by region

Cheapest for r8g.16xlarge first. Linux, USD per hour.

Regionr8g.16xlarger9g.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$3.77$4.109▲ 9%
US East (Ohio)us-east-2$3.77$4.109▲ 9%
US West (Oregon)us-west-2$3.77$4.109▲ 9%
EU (Frankfurt)eu-central-1$4.548$4.957▲ 9%

Keep exploring

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

r8g.16xlargeMemory optimized, r8g family
r8g.16xlarge prices and specsEvery size in the r8g family

Compare r8g.16xlarge with

c8g.16xlargem8g.16xlarger8gd.16xlarger8i.16xlarger8a.16xlarger8gb.16xlarger8gn.16xlarger7g.16xlarge
r9g.16xlargeMemory optimized, r9g family
r9g.16xlarge prices and specsEvery size in the r9g family

Compare r9g.16xlarge with

c9g.16xlargem9g.16xlarger9gd.16xlarge

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.