AWS Amazon EC2

r5ad.12xlarge

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

Name:rMemory Optimized55th GenerationaAMD EPYCdDirect-Attached NVMe SSD12xlarge12 Extra Large

On-demand, Linux

$1.9930/ hr

~$1,454.89/mo · lowest in Asia Pacific (Mumbai), ap-south-1

Savings Plan, Linux

$1.0270/ 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

48vCPUs

24 cores • x86_64

Memory

384GB

8.0 GB / vCPU

Network

10 Gbps

Baseline: 10 Gbps

Storage & EBS

847.5MB/s

Max: 30,000 IOPS

On Google Cloud

The nearest Google Cloud machines to r5ad.12xlarge by vCPU and memory, at On-demand Linux rates in Northern Virginia (us-east-1 ↔ us-east4).

Machine	Size	On-demand Linux	vs r5ad.12xlarge
r5ad.12xlargeThis page · AWS, us-east-1	48 vCPU · 384 GiB	$3.1440/hr	—
n4d-highmem-48same 48 vCPU and 384 GiB; AMD on both; local disk on r5ad.12xlarge only	48 vCPU · 384 GiB	$2.66832/hr	15% less
n2d-highmem-48same 48 vCPU and 384 GiB; AMD on both; local disk on r5ad.12xlarge only	48 vCPU · 384 GiB	$3.080832/hr	2.0% less
n4-highmem-48same 48 vCPU and 384 GiB; AMD vs Intel; local disk on r5ad.12xlarge only	48 vCPU · 384 GiB	$2.85648/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 / Threads48 vCPUs

Physical Cores24

Clock Speed2.5 GHz

Intel AVX / AVX2No

Intel Turbo BoostNo

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score617,178

CoreMark / vCPU12,857.9 / core

FFmpeg Transcoding111 FPS

CoreMark per Dollar309,673 score / $

Cost per vCPU-hr$0.0415

Cost per GB-hr$0.0052

Containers & Kubernetes

EKS Max Pods234 pods

Max ENIs8

IPv4/v6 per ENI30

Total Addressable IPs240 total IPs

CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance10 Gbps

Baseline Bandwidth10 Gbps

Burst / Peak Bandwidth10 Gbps

Enhanced NetworkingYes

EFA SupportNo

IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationNVMe SSD (1800 GB)

Local NVMe Disk1,800 GB NVMe SSD

EBS Baseline Throughput847.5 MB/s

EBS Max Throughput847.5 MB/s

EBS Baseline IOPS30,000

EBS Max / Burst IOPS30,000

Dedicated EBS Throughput5000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)

Nitro EnclavesSupported (Isolated security enclaves)

Normalization Factor96

Generation StatusCurrent Generation (Recommended)

Rates by region

Live on-demand rates across all global AWS cloud regions

Lowest Price Region

$1.9930/ hr

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

Highest Price Region

$4.9920/ hr

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

Global Fleet Average

$3.5701/ 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	$1.9930
ap-northeast-2 Asia Pacific (Seoul)	$3.7920
ap-southeast-1 Asia Pacific (Singapore)	$3.8160
ap-southeast-2 Asia Pacific (Sydney)	$3.8160
ap-northeast-1 Asia Pacific (Tokyo)	$3.8160
us-gov-west-1 AWS GovCloud (US-West)	$3.7920
ca-central-1 Canada (Central)	$3.4560
eu-central-1 EU (Frankfurt)	$3.7920
eu-west-1 EU (Ireland)	$3.5040
eu-west-2 EU (London)	$3.6960
eu-west-3 EU (Paris)	$3.6720
sa-east-1 South America (Sao Paulo) Highest	$4.9920
us-east-1 US East (N. Virginia)	$3.1440
us-east-2 US East (Ohio)	$3.1440
us-west-1 US West (N. California)	$3.5520
us-west-2 US West (Oregon)	$3.1440

Windows — Available in all 16 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-south-1 Asia Pacific (Mumbai) Lowest	$4.2010
ap-northeast-2 Asia Pacific (Seoul)	$6.0000
ap-southeast-1 Asia Pacific (Singapore)	$6.0240
ap-southeast-2 Asia Pacific (Sydney)	$6.0240
ap-northeast-1 Asia Pacific (Tokyo)	$6.0240
us-gov-west-1 AWS GovCloud (US-West)	$6.0000
ca-central-1 Canada (Central)	$5.6640
eu-central-1 EU (Frankfurt)	$6.0000
eu-west-1 EU (Ireland)	$5.7120
eu-west-2 EU (London)	$5.9040
eu-west-3 EU (Paris)	$5.8800
sa-east-1 South America (Sao Paulo) Highest	$7.2000
us-east-1 US East (N. Virginia)	$5.3520
us-east-2 US East (Ohio)	$5.3520
us-west-1 US West (N. California)	$5.7600
us-west-2 US West (Oregon)	$5.3520

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.12xlarge 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.