r8gd.4xlargevsr9gd.4xlarge

r8gd.4xlarge is 8% cheaper than r9gd.4xlarge on demand in US East (N. Virginia), saving $77.16 a month.

At a glancer8gd.4xlarger9gd.4xlarge
On-demand$1.176/hr8% less$1.281/hr
Lowest rate$0.8482/hrSpot, can be interrupted$0.4152/hr51% lessSpot, can be interrupted
Size16 vCPUs, 128 GiB16 vCPUs, 128 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.

Optionr8gd.4xlarger9gd.4xlarger9gd.4xlarge vs r8gd.4xlarge
On-demandPay by the hour$1.176$1.281▲ 9%
SpotCan be interrupted28% off$0.848268% off$0.4152▼ 51%
1-yr savings planHourly commitment27% off$0.85327% off$0.9297▲ 9%
3-yr savings planHourly commitment49% off$0.60449% off$0.6583▲ 9%

Key differences

The biggest lead each one has.

Where r8gd.4xlarge leads
On-demand price$1.176 vs $1.281 per hour
8% cheaper
Where r9gd.4xlarge leads
IPv4 addresses per interface50 vs 30
67% higher
Clock speed3.3 GHz vs 2.7 GHz
22% higher
EBS baseline bandwidth6,000 Mbps vs 5,000 Mbps
20% higher

Specs

15 of 40 specs differ. Those are in bold.

Compute3 of 9 differr8gd.4xlarger9gd.4xlarge
vCPUs1616
Physical cores1616
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 matchr8gd.4xlarger9gd.4xlarge
Memory (GiB)128128
Networking4 of 8 differr8gd.4xlarger9gd.4xlarge
NetworkUp to 15 GigabitUp to 17 Gigabit
Network baseline7.5 Gbps8.5 Gbps
Network peak15 Gbps17 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3050
Storage7 of 12 differr8gd.4xlarger9gd.4xlarge
Storage1 x 950 NVMe SSD1 x 950 NVMe SSD
Local disks1 × 950 GB SSD1 × 950 GB SSD
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 10 GbpsUp to 12000 Mbps
EBS baseline bandwidth5,000 Mbps6,000 Mbps
EBS max bandwidth10,000 Mbps12,000 Mbps
EBS baseline throughput625 MB/s750 MB/s
EBS max throughput1,250 MB/s1,500 MB/s
EBS baseline IOPS20,00024,000
EBS max IOPS40,00048,000
Max EBS volumes3232
Instance details1 of 10 differr8gd.4xlarger9gd.4xlarge
Familyr8gdr9gd
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor3232
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesUEFIUEFI

On-demand prices by region

Cheapest for r8gd.4xlarge first. Linux, USD per hour.

Regionr8gd.4xlarger9gd.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.176$1.281▲ 9%
US East (Ohio)us-east-2$1.176$1.281▲ 9%
US West (Oregon)us-west-2$1.176$1.281▲ 9%
EU (Frankfurt)eu-central-1$1.413$1.54▲ 9%

Keep exploring

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

r8gd.4xlargeMemory optimized, r8gd family
r8gd.4xlarge prices and specsEvery size in the r8gd family

Compare r8gd.4xlarge with

r8g.4xlargec8gd.4xlargem8gd.4xlarger8id.4xlarger7gd.4xlarge
r9gd.4xlargeMemory optimized, r9gd family
r9gd.4xlarge prices and specsEvery size in the r9gd family

Compare r9gd.4xlarge with

c9gd.4xlargem9gd.4xlarger9g.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 49% 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.