AWS Amazon EC2

x8aedz.12xlarge

Part of the X8AEDZ Memory Optimized family — High memory-to-vCPU ratio for memory-intensive applications.

Name:xExtreme Memory Optimized88th GenerationaAMD EPYCeExtra Capacity / ExpansiondDirect-Attached NVMe SSDzHigh Frequency Turbo CPU12xlarge12 Extra Large

On-demand, Linux

$13.8072/ hr

~$10,079.26/mo · lowest in US West (Oregon), us-west-2

Savings Plan, Linux

$7.15899/ hr

From, with a 3-year Compute Savings Plan, No Upfront: −48% vs on-demand rate (us-west-2)

Per unit

$0.2877/ vCPU-hr

$0.0090/GB-hr

Compute

48vCPUs

48 cores • x86_64

Memory

1,536GB

32.0 GB / vCPU

Network

37.5 Gbps

Baseline: 37.5 Gbps

Storage & EBS

3,750MB/s

Max: 120,000 IOPS

On Google Cloud

The nearest Google Cloud machines to x8aedz.12xlarge by vCPU and memory, at On-demand Linux rates in Oregon (us-west-2 ↔ us-west1). x8aedz.12xlarge isn't sold in us-east-1, so this compares the paired region where its rate is lowest.

Machine	Size	On-demand Linux	vs x8aedz.12xlarge
x8aedz.12xlargeThis page · AWS, us-west-2	48 vCPU · 1,536 GiB	$13.8072/hr	—
m3-ultramem-6464 vCPU and 1952 GiB for 48 vCPU and 1536 GiB, the nearest size up; AMD vs Intel; 48 physical cores vs 32; local disk on x8aedz.12xlarge only	64 vCPU · 1,952 GiB	$12.1824/hr	12% less
n1-ultramem-8080 vCPU and 1922 GiB for 48 vCPU and 1536 GiB, the nearest size up; AMD vs Intel; 48 physical cores vs 40; local disk on x8aedz.12xlarge only	80 vCPU · 1,922 GiB	$10.672394/hr	23% less
m1-ultramem-8080 vCPU and 1922 GiB for 48 vCPU and 1536 GiB, the nearest size up; AMD vs Intel; 48 physical cores vs 40; local disk on x8aedz.12xlarge only	80 vCPU · 1,922 GiB	$12.5862/hr	8.8% 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 9R05 Processor

Architecturex86_64 (x86_64)

vCPUs / Threads48 vCPUs

Physical Cores48

Clock SpeedUp to 5 GHz

Intel AVX / AVX2No

Intel Turbo BoostNo

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score2,454,102

CoreMark / vCPU51,127.1 / core

FFmpeg Transcoding429 FPS

CoreMark per Dollar177,741 score / $

Cost per vCPU-hr$0.2877

Cost per GB-hr$0.0090

Containers & Kubernetes

EKS Max Pods1010 pods

Max ENIs16

IPv4/v6 per ENI64

Total Addressable IPs1024 total IPs

CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance37.5 Gbps

Baseline Bandwidth37.5 Gbps

Burst / Peak Bandwidth37.5 Gbps

Enhanced NetworkingYes

EFA SupportNo

IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationNVMe SSD (3800 GB)

Local NVMe Disk3,800 GB NVMe SSD

EBS Baseline Throughput3750 MB/s

EBS Max Throughput3750 MB/s

EBS Baseline IOPS120,000

EBS Max / Burst IOPS120,000

Dedicated EBS Throughput30000 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

$13.8072/ hr

US West (Oregon) (us-west-2)

Highest Price Region

$20.0206/ hr

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

Global Fleet Average

$16.7298/ hr

Across all active regions

Regional Coverage

6regions

Available worldwide

Linux — Available in all 6 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-south-1 Asia Pacific (Mumbai)	$14.2214
ap-northeast-2 Asia Pacific (Seoul) Highest	$20.0206
ap-northeast-1 Asia Pacific (Tokyo) Highest	$20.0206
eu-west-1 EU (Ireland)	$16.5686
eu-north-1 EU (Stockholm)	$15.7402
us-west-2 US West (Oregon) Lowest	$13.8072

Windows — Available in all 6 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-south-1 Asia Pacific (Mumbai)	$16.4294
ap-northeast-2 Asia Pacific (Seoul) Highest	$22.2286
ap-northeast-1 Asia Pacific (Tokyo) Highest	$22.2286
eu-west-1 EU (Ireland)	$18.7766
eu-north-1 EU (Stockholm)	$17.9482
us-west-2 US West (Oregon) Lowest	$16.0152

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 West (Oregon) (us-west-2), the 3-year Compute Savings Plan rate (No Upfront) for x8aedz.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.