AWS Amazon EC2

x2iezn.12xlarge

Part of the X2IEZN Memory Optimized family — High memory-to-vCPU ratio for memory-intensive applications.

Name:xExtreme Memory Optimized22nd GenerationiIntel Xeon ScalableeExtra Capacity / ExpansionzHigh Frequency Turbo CPUnEnhanced Networking12xlarge12 Extra Large

On-demand, Linux

$10.0080/ hr

~$7,305.84/mo · lowest in US East (N. Virginia), us-east-1

Savings Plan, Linux

$3.8556/ hr

From, with a 3-year Compute Savings Plan, No Upfront: −61% vs on-demand rate (us-east-1)

Per unit

$0.2085/ vCPU-hr

$0.0065/GB-hr

Compute

48vCPUs

24 cores • x86_64

Memory

1,536GB

32.0 GB / vCPU

Network

100 Gbps

Baseline: 100 Gbps

Storage & EBS

2,375MB/s

Max: 80,000 IOPS

On Google Cloud

The nearest Google Cloud machines to x2iezn.12xlarge by vCPU and memory, at On-demand Linux rates in Northern Virginia (us-east-1 ↔ us-east4).

Machine	Size	On-demand Linux	vs x2iezn.12xlarge
x2iezn.12xlargeThis page · AWS, us-east-1	48 vCPU · 1,536 GiB	$10.0080/hr	—
m3-ultramem-6464 vCPU and 1952 GiB for 48 vCPU and 1536 GiB, the nearest size up; Intel on both; 24 physical cores vs 32	64 vCPU · 1,952 GiB	$12.142509/hr	21% more
n1-ultramem-8080 vCPU and 1922 GiB for 48 vCPU and 1536 GiB, the nearest size up; Intel on both; 24 physical cores vs 40	80 vCPU · 1,922 GiB	$12.018262/hr	20% more
m1-ultramem-8080 vCPU and 1922 GiB for 48 vCPU and 1536 GiB, the nearest size up; Intel on both; 24 physical cores vs 40	80 vCPU · 1,922 GiB	$14.2836/hr	43% more

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

ProcessorIntel Xeon Platinum 8252

Architecturex86_64 (x86_64)

vCPUs / Threads48 vCPUs

Physical Cores24

Clock Speed4.5 GHz

Intel AVX / AVX2AVX & AVX2 Supported

Intel Turbo BoostYes

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score1,000,208

CoreMark / vCPU20,837.7 / core

FFmpeg Transcoding199 FPS

CoreMark per Dollar99,941 score / $

Cost per vCPU-hr$0.2085

Cost per GB-hr$0.0065

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 Performance100 Gbps

Baseline Bandwidth100 Gbps

Burst / Peak Bandwidth100 Gbps

Enhanced NetworkingYes

EFA SupportNo

IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only

Local NVMe DiskNone (EBS only)

EBS Baseline Throughput2375 MB/s

EBS Max Throughput2375 MB/s

EBS Baseline IOPS80,000

EBS Max / Burst IOPS80,000

Dedicated EBS Throughput19000 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

$10.0080/ hr

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

Highest Price Region

$14.5080/ hr

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

Global Fleet Average

$11.7660/ hr

Across all active regions

Regional Coverage

5regions

Available worldwide

Linux — Available in all 5 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-northeast-1 Asia Pacific (Tokyo) Highest	$14.5080
eu-west-1 EU (Ireland)	$12.0000
me-central-1 Middle East (UAE)	$12.3060
us-east-1 US East (N. Virginia) Lowest	$10.0080
us-west-2 US West (Oregon) Lowest	$10.0080

Windows — Available in all 5 regions
Region	On-Demand Price	% vs On-Demand Rate
ap-northeast-1 Asia Pacific (Tokyo) Highest	$16.7160
eu-west-1 EU (Ireland)	$14.2080
me-central-1 Middle East (UAE)	$14.5140
us-east-1 US East (N. Virginia) Lowest	$12.2160
us-west-2 US West (Oregon) Lowest	$12.2160

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 x2iezn.12xlarge on Linux is 39% of the on-demand rate, so the instance has to run at least 39% 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.