AWS Amazon EC2

c5.18xlarge

Part of the C5 Compute Optimized family — High-performance processors for compute-intensive applications.

Name:cCompute Optimized55th Generation18xlarge18 Extra Large

On-demand, Linux

$3.0600/ hr

~$2,233.80/mo · lowest in Asia Pacific (Hyderabad), ap-south-2

Savings Plan, Linux

$1.4770/ hr

From, with a 3-year Compute Savings Plan, No Upfront: −52% vs on-demand rate (us-east-1)

Per unit

$0.0425/ vCPU-hr

$0.0213/GB-hr

Compute

72vCPUs

36 cores • x86_64

Memory

144GB

2.0 GB / vCPU

Network

25 Gbps

Baseline: 25 Gbps

Storage & EBS

2,375MB/s

Max: 80,000 IOPS

On Google Cloud

The nearest Google Cloud machines to c5.18xlarge by vCPU and memory, at On-demand Linux rates in Northern Virginia (us-east-1 ↔ us-east4).

Machine	Size	On-demand Linux	vs c5.18xlarge
c5.18xlargeThis page · AWS, us-east-1	72 vCPU · 144 GiB	$3.0600/hr	—
c4a-highcpu-72same 72 vCPU and 144 GiB; Intel (x86_64) vs Arm (arm64); 36 physical cores vs 72	72 vCPU · 144 GiB	$2.72736/hr	11% 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

ProcessorIntel Xeon Platinum 8124M

Architecturex86_64 (x86_64)

vCPUs / Threads72 vCPUs

Physical Cores36

Clock Speed3.4 GHz

Intel AVX / AVX2AVX & AVX2 Supported

Intel Turbo BoostYes

Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score1,142,358

CoreMark / vCPU15,866.1 / core

FFmpeg Transcoding183 FPS

CoreMark per Dollar373,320 score / $

Cost per vCPU-hr$0.0425

Cost per GB-hr$0.0213

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 Performance25 Gbps

Baseline Bandwidth25 Gbps

Burst / Peak Bandwidth25 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 Throughput9000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)

Nitro EnclavesSupported (Isolated security enclaves)

Normalization Factor144

Generation StatusCurrent Generation (Recommended)

Rates by region

Live on-demand rates across all global AWS cloud regions

Lowest Price Region

$3.0600/ hr

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

Highest Price Region

$4.7160/ hr

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

Global Fleet Average

$3.6064/ hr

Across all active regions

Regional Coverage

32regions

Available worldwide

Linux — Available in all 32 regions
Region	On-Demand Price	% vs On-Demand Rate
af-south-1 Africa (Cape Town)	$4.1040
ap-east-1 Asia Pacific (Hong Kong)	$3.8880
ap-south-2 Asia Pacific (Hyderabad) Lowest	$3.0600
ap-southeast-3 Asia Pacific (Jakarta)	$3.5280
ap-southeast-4 Asia Pacific (Melbourne)	$3.9960
ap-south-1 Asia Pacific (Mumbai) Lowest	$3.0600
ap-northeast-3 Asia Pacific (Osaka)	$3.8520
ap-northeast-2 Asia Pacific (Seoul)	$3.4560
ap-southeast-1 Asia Pacific (Singapore)	$3.5280
ap-southeast-2 Asia Pacific (Sydney)	$3.9960
ap-northeast-1 Asia Pacific (Tokyo)	$3.8520
us-gov-east-1 AWS GovCloud (US-East)	$3.6720
us-gov-west-1 AWS GovCloud (US-West)	$3.6720
ca-central-1 Canada (Central)	$3.3480
ca-west-1 Canada West (Calgary)	$3.3480
eu-central-1 EU (Frankfurt)	$3.4920
eu-west-1 EU (Ireland)	$3.4560
eu-west-2 EU (London)	$3.6360
eu-south-1 EU (Milan)	$3.6360
eu-west-3 EU (Paris)	$3.6360
eu-north-1 EU (Stockholm)	$3.2760
eu-south-2 Europe (Spain)	$3.4560
eu-central-2 Europe (Zurich)	$3.8410
il-central-1 Israel (Tel Aviv)	$3.6290
me-south-1 Middle East (Bahrain)	$3.8020
me-central-1 Middle East (UAE)	$3.8020
sa-east-1 South America (Sao Paulo) Highest	$4.7160
us-east-1 US East (N. Virginia) Lowest	$3.0600
us-east-2 US East (Ohio) Lowest	$3.0600
us-west-2-lax-1 US West (Los Angeles)	$3.6720
us-west-1 US West (N. California)	$3.8160
us-west-2 US West (Oregon) Lowest	$3.0600

Windows — Available in all 32 regions
Region	On-Demand Price	% vs On-Demand Rate
af-south-1 Africa (Cape Town)	$7.4160
ap-east-1 Asia Pacific (Hong Kong)	$7.2000
ap-south-2 Asia Pacific (Hyderabad) Lowest	$6.3720
ap-southeast-3 Asia Pacific (Jakarta)	$6.8400
ap-southeast-4 Asia Pacific (Melbourne)	$7.3080
ap-south-1 Asia Pacific (Mumbai) Lowest	$6.3720
ap-northeast-3 Asia Pacific (Osaka)	$7.1640
ap-northeast-2 Asia Pacific (Seoul)	$6.7680
ap-southeast-1 Asia Pacific (Singapore)	$6.8400
ap-southeast-2 Asia Pacific (Sydney)	$7.3080
ap-northeast-1 Asia Pacific (Tokyo)	$7.1640
us-gov-east-1 AWS GovCloud (US-East)	$6.9840
us-gov-west-1 AWS GovCloud (US-West)	$6.9840
ca-central-1 Canada (Central)	$6.6600
ca-west-1 Canada West (Calgary)	$6.6600
eu-central-1 EU (Frankfurt)	$6.8040
eu-west-1 EU (Ireland)	$6.7680
eu-west-2 EU (London)	$6.9480
eu-south-1 EU (Milan)	$6.9480
eu-west-3 EU (Paris)	$6.9480
eu-north-1 EU (Stockholm)	$6.5880
eu-south-2 Europe (Spain)	$6.7680
eu-central-2 Europe (Zurich)	$7.1530
il-central-1 Israel (Tel Aviv)	$6.9410
me-south-1 Middle East (Bahrain)	$7.1140
me-central-1 Middle East (UAE)	$7.1140
sa-east-1 South America (Sao Paulo) Highest	$8.0280
us-east-1 US East (N. Virginia) Lowest	$6.3720
us-east-2 US East (Ohio) Lowest	$6.3720
us-west-2-lax-1 US West (Los Angeles)	$6.9840
us-west-1 US West (N. California)	$7.1280
us-west-2 US West (Oregon) Lowest	$6.3720

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 c5.18xlarge on Linux is 48% of the on-demand rate, so the instance has to run at least 48% 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.