r5a.16xlarge

Amazon EC2 · R5a family

The r5a.16xlarge is a memory optimized Amazon EC2 instance type with 64 vCPUs and 512 GiB of memory, running on AMD EPYC 7571 with 12 Gigabit networking, starting at $2.288 per hour on demand.

memory optimizedx86-64amd
vCPUs
64

dedicated

memory
512 GiB

8 GiB per vCPU

processor
AMD

2.5 GHz

on-demand
$3.616

$2,640/mo · us-east-1

spot
$1.547

−57% vs on-demand

1-yr reserved
$2.278

−37% vs on-demand

r5a.16xlarge price by region

18 regions · hourly list prices in USD · On-demand · Spot · 1-yr Reserved · 3-yr Reserved

Asia Pacific (Mumbai)ap-south-1cheapestAsia$2.288$0.7791$1.434$0.988
US East (N. Virginia)us-east-1referenceNorth America$3.616$1.547$2.278$1.562
US East (Ohio)us-east-2North America$3.616$1.396$2.278$1.562
US West (Oregon)us-west-2North America$3.616$1.438$2.278$1.562
Canada (Central)ca-central-1North America$3.968$0.8328$2.50$1.714
US West (N. California)us-west-1North America$4.032$1.378$2.54$1.742
EU (Ireland)eu-west-1Europe$4.064$1.653$2.56$1.756
EU (London)eu-west-2Europe$4.256$1.459$2.681$1.839
EU (Milan)eu-south-1Europe$4.256$0.6865$2.681$1.839
EU (Paris)eu-west-3Europe$4.256$0.5737$2.681$1.839
Asia Pacific (Seoul)ap-northeast-2Asia$4.352$1.394$2.742$1.88
Asia Pacific (Singapore)ap-southeast-1Asia$4.352$1.244$2.742$1.88
Asia Pacific (Sydney)ap-southeast-2Oceania$4.352$1.613$2.742$1.88
AWS GovCloud (US-East)us-gov-east-1North America$4.352–$2.742$1.88
AWS GovCloud (US)us-gov-west-1North America$4.352–$2.742$1.88
Asia Pacific (Tokyo)ap-northeast-1Asia$4.384$1.709$2.757$1.894
EU (Frankfurt)eu-central-1Europe$4.384$1.594$2.757$1.894
South America (Sao Paulo)sa-east-1South America$5.792$0.5792$3.649$2.502

Specifications

compute

vCPUs
64
Memory
512 GiB
Memory per vCPU
8 GiB
Processor
AMD EPYC 7571
CPU vendor
AMD
Architecture
x86-64
Clock speed
2.5 GHz
Burstable CPU
No

storage & network

Local storage
Network storage only
Storage detail
EBS only
Network
12 Gigabit
Peak bandwidth
12 Gbps

aws details

API name
r5a.16xlarge
Family
R5a
Category
Memory optimized
Generation
Current
Regions
18 (Asia, Europe, North America, Oceania, South America)
Cheapest region
Asia Pacific (Mumbai) · $2.288/hr
Dedicated EBS throughput
7000 Mbps
Enhanced networking
Yes
Normalization size factor
128
Processor features
AVX; AVX2; AMD Turbo
Spot interruption rate (us-east-1)
>20%
Spot savings vs on-demand (us-east-1)
71%

r5a.16xlarge equivalents on other clouds

closest match by vCPU, memory, CPU architecture, accelerator and class · Linux on-demand in each provider's reference region

compare side by side→
ProviderInstancevCPUMemoryProcessorOn-demandvs r5a.16xlarge
AWSr5a.16xlarge64512 GiBAMD EPYC 7571$3.616–
AzureE64as v564512 GiBAMD EPYC 7763v (Milan)$3.6160%
E64as v664512 GiBAMD EPYC 9004 (Genoa)$3.814+5%
Google Cloudn4d-highmem-6464512 GiBAMD Turin$3.558-2%
n2d-highmem-6464512 GiBAMD Milan, AMD Rome$3.647+1%
AkamaiG8 Dedicated 256x64256 GiB (2× less)64256 GiBAMD EPYC$3.36-7%
Dedicated 256GB56 vCPU (1.1× less) · 256 GiB (2× less)56256 GiBAMD EPYC$3.456-4%
Vultrvx1-m-64c-512gb64512 GiBAMD EPYC$2.56-29%
vx1-m-64c-512g-3840s64512 GiBAMD EPYC$3.086-15%

R5a family sizes

all about R5a→
SizevCPUMemoryLocal storageOn-demandMonthlySpot1-yr
r5a.large216 GiB–$0.113$82.49$0.0514$0.071
r5a.xlarge432 GiB–$0.226$165$0.1026$0.142
r5a.2xlarge864 GiB–$0.452$330$0.2212$0.285
r5a.4xlarge16128 GiB–$0.904$660$0.3918$0.57
r5a.8xlarge32256 GiB–$1.808$1,320$0.775$1.139
r5a.12xlarge48384 GiB–$2.712$1,980$1.252$1.709
r5a.16xlarge64512 GiB–$3.616$2,640$1.547$2.278
r5a.24xlarge96768 GiB–$5.424$3,960$1.97$3.417

Similar instance types on AWS

other AWS families with a similar shape, cheapest first

r5a.16xlarge FAQ

How much does r5a.16xlarge cost?

r5a.16xlarge costs $3.616 per hour on demand with Linux in US East (N. Virginia) (us-east-1), about $2,640 per month. Across 18 regions the Linux on-demand price ranges from $2.288 in Asia Pacific (Mumbai) to $5.792 in South America (Sao Paulo). Spot capacity costs $1.547 per hour (57% less), but can be reclaimed. A 1-yr Reserved commitment brings it to $2.278 per hour. With Windows it costs $6.56 per hour.

How many vCPUs and how much memory does r5a.16xlarge have?

r5a.16xlarge has 64 vCPUs and 512 GiB of memory (8 GiB per vCPU), running on AMD EPYC 7571. It is a memory optimized instance type in the R5a family.

What is the cheapest region for r5a.16xlarge?

Asia Pacific (Mumbai) (ap-south-1) at $2.288 per hour for Linux on demand, 37% less than US East (N. Virginia). r5a.16xlarge is sold in 18 AWS regions.

What are the equivalents of r5a.16xlarge on other clouds?

The closest matches by vCPU, memory, CPU architecture and instance class are on Azure, E64as v5 (64 vCPU, 512 GiB, $3.616/hour in East US); on Google Cloud, n4d-highmem-64 (64 vCPU, 512 GiB, $3.558/hour in Iowa); on Akamai, G8 Dedicated 256x64 (64 vCPU, 256 GiB, $3.36/hour in Newark, NJ); on Vultr, vx1-m-64c-512gb (64 vCPU, 512 GiB, $2.56/hour in Amsterdam).