r5ad.4xlarge

r5ad.4xlarge is an AWS EC2 instance with 16 vCPUs, 128 GiB memory (AMD EPYC 7571). In US East (N. Virginia) it costs $1.048 per hour on demand ($765.04 per month) for Linux; a 1-year reserved instance with no upfront costs $0.66 per hour, 37% less. Spot capacity is about $0.3501 per hour. It is sold in 16 regions; the cheapest is Asia Pacific (Mumbai) at $0.664 per hour.

Prices by region

USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.

RegionOn-demandSpot1-yr reserved3-yr reserved1-yr savings plan3-yr savings plan
Asia Pacific (Mumbai) ap-south-1$0.664$0.298$0.419$0.287$0.481$0.342
US East (N. Virginia) us-east-1$1.048$0.3501$0.66$0.453$0.763$0.54
US East (Ohio) us-east-2$1.048$0.3214$0.66$0.453$0.763$0.54
US West (Oregon) us-west-2$1.048$0.3625$0.66$0.453$0.763$0.54
Canada (Central) ca-central-1$1.152$0.3694$0.726$0.498$0.839$0.639
EU (Ireland) eu-west-1$1.168$0.4991$0.736$0.505$0.861$0.616
US West (N. California) us-west-1$1.184$0.417$0.746$0.511$0.87$0.619
EU (Paris) eu-west-3$1.224$0.4227$0.771$0.529$0.901$0.651
EU (London) eu-west-2$1.232$0.4096$0.776$0.532$0.901$0.694
Asia Pacific (Seoul) ap-northeast-2$1.264$0.4008$0.794$0.546$0.913$0.711
EU (Frankfurt) eu-central-1$1.264$0.4859$0.796$0.546$0.924$0.666
AWS GovCloud (US-West) us-gov-west-1$1.264–$0.796$0.546$0.926$0.659
Asia Pacific (Tokyo) ap-northeast-1$1.272$0.429$0.801$0.55$0.934$0.726
Asia Pacific (Singapore) ap-southeast-1$1.272$0.6134$0.797$0.55$0.918$0.655
Asia Pacific (Sydney) ap-southeast-2$1.272$0.5597$0.801$0.55$0.926$0.666
South America (Sao Paulo) sa-east-1$1.664$0.2111$1.048$0.719$1.216$0.94
Reserved and Savings PlansSpot prices by regionWindows prices by regionAzure equivalents

Prices by operating system in US East (N. Virginia)

Operating systemOn-demand /hr1-yr reserved /hr3-yr reserved /hr
Linux$1.048$0.66$0.453
Ubuntu Pro$1.076––
SUSE$1.173$0.72$0.507
RHEL$1.221$0.833$0.626
Linux SQL Web$1.318$0.931$0.723
RHEL HA$1.445$1.057$0.85
RHEL SQL Web$1.491––
Windows$1.784$1.396$1.189
Windows SQL Web$2.054$1.667$1.459
Linux SQL Std$2.968$2.58$2.373
RHEL SQL Std$3.141––
RHEL HA SQL Std$3.365––
Windows SQL Std$3.704$3.316$3.109
Linux SQL Ent$7.048$6.66$6.453
RHEL SQL Ent$7.221––
RHEL HA SQL Ent$7.445––
Windows SQL Ent$7.784$7.396$7.189

Specs

ComputeValue
vCPUs16
Physical cores8
Threads per core2
Architecturex86_64
ProcessorAMD EPYC 7571
CPU makerAMD
Clock speed2.5 GHz
Sustained clock2.2 GHz
Processor featuresAVX; AVX2; AMD Turbo
BurstableNo
MemoryValue
Memory (GiB)128
NetworkingValue
NetworkUp to 10 Gbps
Network baseline5 Gbps
Network peak10 Gbps
Enhanced networkingYes (ENA)
EFANo
IPv6Yes
Max network interfaces8
IPv4 addresses per interface30
StorageValue
Storage2 x 300 NVMe SSD
Local disks2 × 300 GB SSD
EBS optimizedYes
EBS over NVMeRequired
EBS throughputUp to 2120 Mbps
EBS baseline bandwidth2,880 Mbps
EBS max bandwidth2,880 Mbps
EBS baseline throughput360 MB/s
EBS max throughput360 MB/s
EBS baseline IOPS16,000
EBS max IOPS16,000
Max EBS volumes25
Instance detailsValue
Instance typer5ad.4xlarge
Familyr5ad
CategoryMemory optimized
Current generationYes
Normalization factor32
Bare metalNo
HypervisorNitro
Placement groupsCluster, Partition, Spread
HibernationYes
Nitro EnclavesYes
Boot modesLegacy BIOS, UEFI

Compare r5ad.4xlarge

Compute and memory optimized

vs c5ad.4xlargevs m5ad.4xlarge

Other processors

vs r5d.4xlarge

With or without local disk and networking

vs r5a.4xlarge

Other r5ad sizes

SizevCPUsMemory (GiB)On-demand /hr
r5ad.large216$0.131
r5ad.xlarge432$0.262
r5ad.2xlarge864$0.524
r5ad.4xlarge16128$1.048
r5ad.8xlarge32256$2.096
r5ad.12xlarge48384$3.144
r5ad.16xlarge64512$4.192
r5ad.24xlarge96768$6.288

Prices updated 2026-11-12 from AWS public price lists. Compare all AWS EC2 instances.