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Citrix XenServer vs Proxmox VE vs VMware vSphere comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.8
Citrix XenServer offers cost savings and enhanced efficiency through virtualization, justifying the investment despite higher initial costs.
Sentiment score
7.5
Proxmox VE offers cost savings, enhanced server capabilities, and improved efficiency, with benefits outweighing its learning curve challenges.
Sentiment score
7.2
VMware vSphere reduces costs and enhances efficiency with virtualization, offering savings, agility, and improved resource utilization and scalability.
My clients generally maintain their Citrix infrastructure without shifting, suggesting stability and reliable operation as Citrix XenServer is fully established.
 

Customer Service

Sentiment score
4.8
Citrix XenServer's customer service varies in effectiveness, with challenges in response times and support access, especially for complex issues.
Sentiment score
7.4
Proxmox VE users often utilize community resources and documentation over paid support, though improved direct communication is desired.
Sentiment score
7.0
VMware vSphere's customer service is efficient and knowledgeable, but response times and complex issue handling can be inconsistent.
With valid licenses, we can access hotfixes, service packs, knowledge base, self-help tools, diagnostics, downloads, live chat, and phone support.
They do not provide adequate support for midsize businesses.
There appear to be very few engineers at Citrix who understand the problems.
Priority one issues are usually addressed by engineers within one to two hours.
Recently, support has been less friendly and slower, especially after the company was acquired by Broadcom.
If we have issues, the support tends to be unreliable
 

Scalability Issues

Sentiment score
7.9
Citrix XenServer offers effective scalability and integration, appreciated for its ease, cost-effectiveness, and support for enterprise growth.
Sentiment score
7.2
Proxmox VE is praised for its scalability, ease of resource addition, and seamless migrations, though vertical scaling could improve.
Sentiment score
7.4
VMware vSphere offers scalable, flexible environments with minimal downtime, seamless integration, and excellent performance across diverse hardware and business needs.
Familiarity with Linux can enhance its performance and usability.
Scaling is easy, whether it is hyperconverged or a three-tier architecture.
VMware vSphere is highly scalable in terms of the number of users and the number of servers it can handle.
It is a highly scalable solution.
 

Stability Issues

Sentiment score
7.7
Citrix XenServer is reliable for SMBs, supports high uptimes, but may occasionally face minor issues, especially with backups.
Sentiment score
8.1
Proxmox VE is highly stable and reliable, performing well on older hardware with minimal performance issues.
Sentiment score
8.0
VMware vSphere is highly stable and reliable, with minimal outages and quick resolution of issues, ideal for critical applications.
It is a very stable hypervisor solution.
While they are generally stable, if outages occur, they tend to be due to brands like HP or Dell, not VMware vSphere itself.
I would rate the stability of VMware vSphere as eight out of ten.
 

Room For Improvement

Citrix XenServer needs better backup, integration, management, stability, compatibility, affordability, technical support, community engagement, and marketing.
Proxmox VE faces challenges with performance, interface complexity, support, and lacks effective monitoring, documentation, and scalability features.
VMware vSphere needs pricing, interface, compatibility, management, integration, fault tolerance, performance, and technology support improvements due to user concerns.
Although the product is technically competitive, it is not widely known or used due to poor marketing.
Citrix needs to improve the hypervisor, specifically in security and performance.
We can implement high availability and live migration with pools, along with security and backup to enable role-based access control for safer management.
The cost changed from perpetual to subscription, and there is a need for alternative solutions.
Another area is the stability during upgrades from older versions to newer versions, where we face issues.
Sometimes, it is difficult to find documentation for specific tools and solutions.
 

Setup Cost

Citrix XenServer is a cost-effective alternative to VMware, though pricing can be complex and varies with needs.
Proxmox VE is an open-source, cost-effective virtualization solution with optional support, valued for its affordability against competitors.
VMware vSphere is costly but valued for advanced features and stability, especially in large-scale environments, warranting careful budgeting.
It is cheaper compared to its competitors.
Organizations save substantial money because competing solutions, such as VMware, cost double or triple.
The pricing and licensing policy of Citrix XenServer is not transparent and quite confusing.
Many customers are trying to avoid it due to its high cost.
Costs significantly increased from perpetual to subscription, with prices rising by two to three times over three to five years.
The solution is too expensive.
 

Valuable Features

Citrix XenServer offers virtualization, ease of use, scalability, and strong support, ideal for small to medium businesses.
Proxmox VE provides a user-friendly, scalable, and affordable virtualization solution with strong community support and feature-rich environment.
VMware vSphere offers centralized management and flexibility, enhancing data center efficiency with strong security and fast, efficient operations.
The most valuable feature is transferring and sharing applications that allow users to move files between devices, including smartphones, tablets, and computers without needing USB cables, internet connections, or data usage.
It provides secure access to applications and resources, which is crucial for us and our clients.
It is user-friendly and easy to deploy, making it an attractive option.
The vMotion feature is beneficial for online migration of virtual machines from one host to another without downtime.
The tool is highly available, which is crucial for implementing critical applications requiring 24/7 availability.
The high availability feature is significant.
 

Mindshare comparison

As of June 2025, in the Server Virtualization Software category, the mindshare of Citrix XenServer is 4.9%, up from 4.3% compared to the previous year. The mindshare of Proxmox VE is 17.9%, down from 20.4% compared to the previous year. The mindshare of VMware vSphere is 16.2%, down from 20.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Server Virtualization Software
 

Featured Reviews

VivekKumar10 - PeerSpot reviewer
Cost efficiency enables significant savings but improvement in support and backup integration is needed for enhanced reliability
In the past, we utilized the live migration feature in Citrix XenServer, but not in this project. This is a new, fresh deployment, so there is no live migration. The support of heterogeneous resource pool in Citrix XenServer depends on the deployment and customer requirements. If a customer requires heterogeneous deployment, we accommodate that. Generally, Citrix XenServer goes in straightforward vanilla deployment because it is majorly used for Citrix farms. Very few customers use it for other products or applications. Intelligent performance optimization is available in this product, but very few customers use it, and those who do aren't using it extensively. I cannot comment extensively on this feature at present.
Albert Lacerda - PeerSpot reviewer
Manages clusters across sites and has an easy setup and integrations
It is very easy to set up. It is a robust virtual environment and can be deployed within a few days. Typically, an environment can be set up in two, or three days. The most complicated part is migration from VMware. However, the new virtual Proxmox offers a built-in tool to directly connect to the VMware environment and convert the virtual machines to Proxmox. You need to have one person with expertise in network components and configuration for that part of the physical environment. The most important aspect is working with the vendors who supply your standard software. This is often the most challenging part. You need to contact support to help set up the new environment if something changes. This process usually involves more time and effort to get the vendors to ensure compatibility with Proxmox. Many people, including those at Zendesk, are often reluctant to assure that Proxmox will work with other unfamiliar systems. I rate the initial setup an eight to nine out of ten, where one is difficult and ten is easy.
Neeraj Mehra - PeerSpot reviewer
Streamlines virtualization and has features like high availability and vMotion
The primary use case is for virtualization, including the implementation of vSphere, vCloud Foundation, vCloud Director, and cloud automation with vSphere My customers, particularly SMBs, mainly utilize High Availability (HA), DRS, and vMotion features. The vMotion feature is beneficial for…
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Comparison Review

VL
Jan 13, 2015
vSphere vs. RHEV vs. Hyper-V vs. XenServer
We have used the following functions: 1. Hypervisor: to ensure that the virtual server provide web and email services to the company, thus providing a stable operation a with single sign-on integration of an AD server and vCenter. 2. Network and Storage: centralized data server…
 

Top Industries

By visitors reading reviews
Educational Organization
25%
Computer Software Company
11%
Manufacturing Company
7%
Financial Services Firm
7%
Computer Software Company
15%
Comms Service Provider
11%
Manufacturing Company
8%
Government
7%
Educational Organization
17%
Computer Software Company
13%
Financial Services Firm
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Citrix Hypervisor?
The core function enables multiple virtual machines to run on a single physical server. This maximizes hardware utili...
What is your experience regarding pricing and costs for Citrix Hypervisor?
Citrix XenServer multi-cloud includes all necessary products, allowing for a diverse deployment. Licensing includes a...
What needs improvement with Citrix Hypervisor?
Citrix XenServer needs to improve compatibility with other solutions and support various services hosted on it. There...
Proxmox vs ESXi/vSphere: What is your experience?
For me the biggest impact is the cost of licensing in the case of VMware despite its overall intuitiveness and ease o...
How does Proxmox VE compare with Hyper-V?
One of the best things about Proxmox VE is that it is open-source and very inexpensive. You get all of the same featu...
Proxmox VE or KVM?
I use Proxmox VE and have been very happy with it. In my opinion, it is a complete and stable solution with excellent...
What is IOMMU?
DEEPEN DHULLA did explain well IOMMU. IOMMU has to be activated at the bios level. It exists on Intel and AMD platfor...
Why KVM??? Help please!
We use VMware and KVM. We find that KVM is a lot simpler to use and it provides the virtualization we need for Linux...
What is the biggest difference between Nutanix Acropolis and VMware vSphere?
We found the reduced power consumption with Nutanix Acropolis AOS a very attractive feature. We also like the interfa...
 

Also Known As

Hypervisor
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Overview

 

Sample Customers

U.S. Army Shared Services Center, SoftLayer, Educational Services of America, Independent Bank, and SK Telecom.
Municipality of Trento, SwitchMIA, inDenova, Valmeita City Council, Alpha IT AS, Grupo Inversor Veracruzano S.A.P.I. de C.V. (GRIVER), Laut und Schoen, IT-Services - Hamburg e.K., KMI Learning, Dynacom Tankers Management Ltd., Serwise AG
Abu Dhabi Ports Company, ACS, AIA New Zealand, Consona, Corporate Express, CS Energy, and Digiweb.
Find out what your peers are saying about Proxmox, VMware, Microsoft and others in Server Virtualization Software. Updated: June 2025.
858,435 professionals have used our research since 2012.