AWS Amazon EC2

r8a.4xlarge

Part of the R8A Memory Optimized family — High memory-to-vCPU ratio for memory-intensive applications.

Name:rMemory Optimized88th GenerationaAMD EPYC4xlarge4 Extra Large

On-demand, Linux

$1.2781/ hr

~$933.00/mo · lowest in US East (N. Virginia), us-east-1

Savings Plan, Linux

$0.6667/ hr

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

Per unit

$0.0799/ vCPU-hr

$0.0100/GB-hr

Compute

16vCPUs

16 cores • x86_64

Memory

128GB

8.0 GB / vCPU

Network

Up to 15 Gbps

Baseline: 7.5 Gbps

Storage & EBS

1,250MB/s

Max: 40,000 IOPS

On Google Cloud

The nearest Google Cloud machines to r8a.4xlarge by vCPU and memory, at On-demand Linux rates in Northern Virginia (us-east-1 ↔ us-east4).

Machine	Size	On-demand Linux	vs r8a.4xlarge
r8a.4xlargeThis page · AWS, us-east-1	16 vCPU · 128 GiB	$1.27808/hr	—
n4d-highmem-16same 16 vCPU and 128 GiB; AMD on both; 16 physical cores vs 8	16 vCPU · 128 GiB	$0.88944/hr	30% less
c3d-highmem-16same 16 vCPU and 128 GiB; AMD on both; 16 physical cores vs 8	16 vCPU · 128 GiB	$0.97976/hr	23% less
n2d-highmem-16same 16 vCPU and 128 GiB; AMD on both; 16 physical cores vs 8	16 vCPU · 128 GiB	$1.026944/hr	20% 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 9R45 Processor

Architecturex86_64 (x86_64)

vCPUs / Threads16 vCPUs

Physical Cores16

Clock SpeedUp to 4.5 GHz

Intel AVX / AVX2No

Intel Turbo BoostNo

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score732,992

CoreMark / vCPU45,812 / core

FFmpeg Transcoding227 FPS

CoreMark per Dollar573,510 score / $

Cost per vCPU-hr$0.0799

Cost per GB-hr$0.0100

Containers & Kubernetes

EKS Max Pods314 pods

Max ENIs8

IPv4/v6 per ENI40

Total Addressable IPs320 total IPs

CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network PerformanceUp to 15 Gbps

Baseline Bandwidth7.5 Gbps

Burst / Peak Bandwidth15 Gbps

Enhanced NetworkingYes

EFA SupportNo

IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only

Local NVMe DiskNone (EBS only)

EBS Baseline Throughput625 MB/s

EBS Max Throughput1250 MB/s

EBS Baseline IOPS20,000

EBS Max / Burst IOPS40,000

Dedicated EBS ThroughputUp to 10000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)

Nitro EnclavesSupported (Isolated security enclaves)

Normalization Factor32

Generation StatusCurrent Generation (Recommended)

Rates by region

Live on-demand rates across all global AWS cloud regions

Lowest Price Region

$1.2781/ hr

US East (N. Virginia) (us-east-1)

Highest Price Region

$1.5418/ hr

Asia Pacific (Tokyo) (ap-northeast-1)

Global Fleet Average

$1.3962/ hr

Across all active regions

Regional Coverage

9regions

Available worldwide

Linux — Available in all 9 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-east-2 Asia Pacific (Taipei)	$1.3876
ap-northeast-1 Asia Pacific (Tokyo) Highest	$1.5418
ca-central-1 Canada (Central)	$1.3998
eu-central-1 EU (Frankfurt) Highest	$1.5418
eu-west-1 EU (Ireland)	$1.4302
eu-south-2 Europe (Spain)	$1.4302
us-east-1 US East (N. Virginia) Lowest	$1.2781
us-east-2 US East (Ohio) Lowest	$1.2781
us-west-2 US West (Oregon) Lowest	$1.2781

Windows — Available in all 9 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-east-2 Asia Pacific (Taipei)	$2.1236
ap-northeast-1 Asia Pacific (Tokyo) Highest	$2.2778
ca-central-1 Canada (Central)	$2.1358
eu-central-1 EU (Frankfurt) Highest	$2.2778
eu-west-1 EU (Ireland)	$2.1662
eu-south-2 Europe (Spain)	$2.1662
us-east-1 US East (N. Virginia) Lowest	$2.0141
us-east-2 US East (Ohio) Lowest	$2.0141
us-west-2 US West (Oregon) Lowest	$2.0141

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 US East (N. Virginia) (us-east-1), the 3-year Compute Savings Plan rate (No Upfront) for r8a.4xlarge 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.