AWS Amazon EC2

r5ad.16xlarge

Part of the R5AD Memory Optimized family — High memory-to-vCPU ratio for memory-intensive applications.

Name:rMemory Optimized55th GenerationaAMD EPYCdDirect-Attached NVMe SSD16xlarge16 Extra Large

On-demand, Linux

$2.6580/ hr

~$1,940.34/mo · lowest in Asia Pacific (Mumbai), ap-south-1

Savings Plan, Linux

$1.3690/ hr

From, with a 3-year Compute Savings Plan, No Upfront: −48% vs on-demand rate (ap-south-1)

Per unit

$0.0415/ vCPU-hr

$0.0052/GB-hr

Compute

64vCPUs

32 cores • x86_64

Memory

512GB

8.0 GB / vCPU

Network

12 Gbps

Baseline: 12 Gbps

Storage & EBS

1,187.5MB/s

Max: 40,000 IOPS

On Google Cloud

The nearest Google Cloud machines to r5ad.16xlarge by vCPU and memory, at On-demand Linux rates in Northern Virginia (us-east-1 ↔ us-east4).

Machine	Size	On-demand Linux	vs r5ad.16xlarge
r5ad.16xlargeThis page · AWS, us-east-1	64 vCPU · 512 GiB	$4.1920/hr	—
n4d-highmem-64same 64 vCPU and 512 GiB; AMD on both; local disk on r5ad.16xlarge only	64 vCPU · 512 GiB	$3.55776/hr	15% less
n2d-highmem-64same 64 vCPU and 512 GiB; AMD on both; local disk on r5ad.16xlarge only	64 vCPU · 512 GiB	$4.107776/hr	2.0% less
n4-highmem-64same 64 vCPU and 512 GiB; AMD vs Intel; local disk on r5ad.16xlarge only	64 vCPU · 512 GiB	$3.80864/hr	9.1% less

Matched on vCPU and memory, then CPU vendor, then rate; a larger size is offered only when nothing is the same size. On-demand Linux only: Spot and commitments work differently on the two clouds, so they aren't compared here.

Technical Specifications & Limits

Hardware specs, container thresholds, and system limits

Compute & Processor

ProcessorAMD EPYC 7571

Architecturex86_64 (x86_64)

vCPUs / Threads64 vCPUs

Physical Cores32

Clock Speed2.5 GHz

Intel AVX / AVX2No

Intel Turbo BoostNo

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score824,530

CoreMark / vCPU12,883.3 / core

FFmpeg Transcoding117 FPS

CoreMark per Dollar310,207 score / $

Cost per vCPU-hr$0.0415

Cost per GB-hr$0.0052

Containers & Kubernetes

EKS Max Pods737 pods

Max ENIs15

IPv4/v6 per ENI50

Total Addressable IPs750 total IPs

CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance12 Gbps

Baseline Bandwidth12 Gbps

Burst / Peak Bandwidth12 Gbps

Enhanced NetworkingYes

EFA SupportNo

IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationNVMe SSD (2400 GB)

Local NVMe Disk2,400 GB NVMe SSD

EBS Baseline Throughput1187.5 MB/s

EBS Max Throughput1187.5 MB/s

EBS Baseline IOPS40,000

EBS Max / Burst IOPS40,000

Dedicated EBS Throughput7000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)

Nitro EnclavesSupported (Isolated security enclaves)

Normalization Factor128

Generation StatusCurrent Generation (Recommended)

Rates by region

Live on-demand rates across all global AWS cloud regions

Lowest Price Region

$2.6580/ hr

Asia Pacific (Mumbai) (ap-south-1)

Highest Price Region

$6.6560/ hr

South America (Sao Paulo) (sa-east-1)

Global Fleet Average

$4.7601/ hr

Across all active regions

Regional Coverage

16regions

Available worldwide

Linux — Available in all 16 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-south-1 Asia Pacific (Mumbai) Lowest	$2.6580
ap-northeast-2 Asia Pacific (Seoul)	$5.0560
ap-southeast-1 Asia Pacific (Singapore)	$5.0880
ap-southeast-2 Asia Pacific (Sydney)	$5.0880
ap-northeast-1 Asia Pacific (Tokyo)	$5.0880
us-gov-west-1 AWS GovCloud (US-West)	$5.0560
ca-central-1 Canada (Central)	$4.6080
eu-central-1 EU (Frankfurt)	$5.0560
eu-west-1 EU (Ireland)	$4.6720
eu-west-2 EU (London)	$4.9280
eu-west-3 EU (Paris)	$4.8960
sa-east-1 South America (Sao Paulo) Highest	$6.6560
us-east-1 US East (N. Virginia)	$4.1920
us-east-2 US East (Ohio)	$4.1920
us-west-1 US West (N. California)	$4.7360
us-west-2 US West (Oregon)	$4.1920

Windows — Available in all 16 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-south-1 Asia Pacific (Mumbai) Lowest	$5.6020
ap-northeast-2 Asia Pacific (Seoul)	$8.0000
ap-southeast-1 Asia Pacific (Singapore)	$8.0320
ap-southeast-2 Asia Pacific (Sydney)	$8.0320
ap-northeast-1 Asia Pacific (Tokyo)	$8.0320
us-gov-west-1 AWS GovCloud (US-West)	$8.0000
ca-central-1 Canada (Central)	$7.5520
eu-central-1 EU (Frankfurt)	$8.0000
eu-west-1 EU (Ireland)	$7.6160
eu-west-2 EU (London)	$7.8720
eu-west-3 EU (Paris)	$7.8400
sa-east-1 South America (Sao Paulo) Highest	$9.6000
us-east-1 US East (N. Virginia)	$7.1360
us-east-2 US East (Ohio)	$7.1360
us-west-1 US West (N. California)	$7.6800
us-west-2 US West (Oregon)	$7.1360

Savings Plans: what to know

A Savings Plan commits you to a dollar amount per hour of spend for one or three years, not to an instance: usage up to that amount is billed at the plan's rates and the rest at on-demand, and unused commitment is still billed.
A Compute Savings Plan follows your usage across instance families, sizes, regions and operating systems; an EC2 Instance Savings Plan is locked to one family in one region in exchange for a lower rate (what that flexibility costs).
In Asia Pacific (Mumbai) (ap-south-1), the 3-year Compute Savings Plan rate (No Upfront) for r5ad.16xlarge on Linux is 52% of the on-demand rate, so the instance has to run at least 52% of the hours for the commitment to cost less than on-demand.
On Windows a plan discounts only the compute part of the rate: the Windows license part costs the same as on demand, so the percentage off is smaller than on Linux.
Rates are AWS's effective hourly rate for each payment option; All Upfront pays the whole term's commitment at purchase, which is why its hourly rate is lower; Partial Upfront (at least half up front) isn't shown on this page. The Savings Plans calculator has all three and sizes a commitment for this instance or a mix of them. How AWS applies a plan each hour: how Compute Savings Plans decide what they cover. Sizing one for elastic workloads: managing Compute Savings Plans.