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KVM Logo
Read 9 KVM reviews.
58,493 views|50,491 comparisons
Proxmox Logo
51,070 views|36,397 comparisons
Executive Summary
Updated on March 24, 2022

We performed a comparison between KVM and Proxmox VE based on our users’ reviews in four categories. After reading all of the collected data, you can find our conclusion below.

  • Ease of Deployment: Most KVM and Proxmox VE users felt that the setup of both solutions was relatively easy and didn’t take long to deploy.
  • Features: Reviewers of KVM like the friendliness of the GUI but feel that the software is complex and not so scalable at the current time.

    Users of Proxmox VE liked that the software was easy to use, had good performance, and had a good backup service. However, users didn’t like that specific processes, like manually updating, weren't automatic. They also felt that moving things to the cloud was difficult and, because it's a young solution, there were some bugs.
  • Pricing: Users of KVMfelt that the licensing price was fair. Reviewers of Hyper-V felt the pricing was great, especially for customers working with budget restraints.
  • Service and Support: Half of the reviewers of KVM said they didn’t pay for support, so they relied on the community for any queries, while the rest relied on support vendors, and most were satisfied with the level of support. In contrast, most users of Proxmox VE were happy with the support, though there were a few who thought it needed improvement.

Comparison Results: Based on the parameters we compared, KVM and Proxmox VE had a similar user rating regarding ease of deployment, pricing, and service and support. When it came to features, reviewers felt KVM was complex and not scalable, while users of Proxmox VE were unhappy that certain processes weren’t automatic, and moving things to the cloud was difficult.

To learn more, read our detailed KVM vs. Proxmox VE report (Updated: May 2022).
Buyer's Guide
KVM vs. Proxmox VE
May 2022
Find out what your peers are saying about KVM vs. Proxmox VE and other solutions. Updated: May 2022.
607,332 professionals have used our research since 2012.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"The GUI interface makes the management of KVM easier than ever before.""Very cost-effective.""It is easy to use, stable, and flexible. It is a pretty mature product, and it is faster than VirtualBox.""I have found KVM to be scalable.""Good screen and keyboard sharing feature.""This solution is open source and easy to configure.""If you prefer command-line, there are all kinds of command-line options.""I like that it's easy to manage. It's also more powerful when it comes to security than others. That point of view is the one consideration. The other consideration is that it's cost-effective."

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"Proxmox is free, very stable, and doesn't require more resources for memory RAM. It's fine for a small data center.""The backup service, which was released recently, and that we are already using, is wonderful.""The initial setup is straightforward.""The whole solution is good. It has good tools that help me in managing the servers. It is also stable.""There are many features included with Proxmox.""The feature that I have found most valuable is that its storage container, LVM, and everything else work out of the box.""The solution is extremely scalable.""The most valuable feature is the ease of deployment."

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Cons
"Lacks high availability across clusters as well as support for Apache CloudStack.""In our setup, we do not have any dashboards or orchestration, and it is hard to manage. We have 25 gig network cards, but the software driver we have only supported 10 gigs.""Its resource usage can be improved.""Monitoring and resolution could be improved.""Technical support could be better. In the next release, I would like to see an improved user interface and dashboard. This type of improvement will make it easy or help our engineers understand the solution from a requirement point of view.""I have previously used VMware and KVM is easier to use. However, they both have their strengths depending on their use cases. They are mostly equal. One of VMware's advantages is it has better support.""There are some issues with the graphics and some software that is very complex.""Business continuity features need to be added."

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"We have only command lines for a management application to remove sites. The solution needs a proper GUI.""The documentation in Proxmox VE could improve.""A feature which should be added is the ability to encrypt the main installation.""The only disadvantage of Proxmox VE is that it is a young solution so it does have some bugs.""I can't speak to any improvements. It is not lacking features.""One issue with Proxmox is that some processes are not automatic. For some processes, you have to do it manually by command line.""Its user interface can be improved. In the version that I am using, not all functions can be performed by using the UI. There can be some improvement on that. I'm assuming that it has already been improved in the latest version.""Its performance and support can be improved. Currently, there is a cost for support."

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Pricing and Cost Advice
  • "It is free for everyone."
  • "The price is fair compared to others. But in our local market, it's a problem to get budget approval from management. That's why they are trying to get those products so we can give them the price benefit. But if you consider the international market or other products, it's sometimes better than their price."
  • "We had some problems with the licensing."
  • "KVM is priced reasonably."
  • More KVM Pricing and Cost Advice →

  • "The only thing you pay for is support and it is between $2,500 and $3,000 a year. It depends on the support plan you choose. Support is optional."
  • "I am not aware of the licensing cost, but there is a cost for support."
  • "It's an open-source solution that can be used free of cost."
  • "Because I'm using Proxmox VE for personal use and it's an AGPL license project, I can use it at home for free."
  • "Proxmox is free."
  • "The way the licensing of Proxmox is structured, you can use it for free. It is an open-source solution, and you can use it for free, but if you do need support, then you have to pay for the support. So, you can use it in a way that you don't have to pay anything, which is a plus point for me. For people or users who have huge and more intense use cases, the advice or the recommendation is to always pay for support. In case something goes wrong, you can fall back on the team that will attend to your request. For me, at the moment, the cost is zero."
  • "To use Proxmox VE there is not a license required. However, you can purchase a support license, which you access, but it doesn't change the functionality of the solution."
  • "Proxmox VE is affordable. It's cheaper than Hyper-V, Huawei Desktop Protocol, and Huawei Desktop Cloud."
  • More Proxmox VE Pricing and Cost Advice →

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    Answers from the Community
    Netanya Carmi
    WilVan Lierop - PeerSpot reviewerWilVan Lierop
    Real User

    In a marketing services-related company security is paramount.


    Therefore, you probably will rely on services, especially during maintenance of your network and need support for that.


    When it comes to security and support KVM would be the better option. With in-house engineers, both Proxmox VE and KVM could be chosen. But qualified engineers are hard to come by nowadays, depending on where you live.


    As a side note, I maintain mainly Xenserver, VMware and KVM. When it comes to performance per watt Xenserver would be the king, especially on larger setups. 


    Since your setup is of medium size and if you decided not to go for the aforementioned setups, KVM would be the lesser of the worse.


    Your question depends a lot on the hardware/cloud system you have in mind. More details would make my recommendations more precise.


    Kind regards,

    Syed Abid Hussain - PeerSpot reviewerSyed Abid Hussain
    Real User

    KVM is a kernel base hypervisor while Proxmox VE is open-source. Technically, Proxmox VE fulfills the smallest business users than KVM.

    And if we go for the quality and support KVM is better. 


    But Proxmox VE has also more features according to business growth.

    Questions from the Community
    Top Answer:I would prefer if KVM was easier to scale and not so limited. Overall the product has been helpful. It is easy to use, and was quite straight-forward to set up. Since I have been using KVM, I have not… more »
    Top Answer:KVM is easy to use, stable and flexible. It is mature and very fast. It is an affordable open-source solution that is easy to set up and manage. It offers very good security. It has a virtual manager… more »
    Top Answer:KVM is better. But let's just look at the software instead of judging. Hyper-V was a free solution from Microsoft to virtualize Server or Client OS as it is a feature on Windows Server since 2008… more »
    Top Answer:For me the biggest impact is the cost of licensing in the case of VMware despite its overall intuitiveness and ease of handling and management. However, KVM-based Open Source solutions are becoming… more »
    Top Answer:One of the best things about Proxmox VE is that it is open-source and very inexpensive. You get all of the same features as with the more well-known products. Proxmox VE is very easy to deploy - it… more »
    Top Answer:I use Proxmox VE and have been very happy with it. In my opinion, it is a complete and stable solution with excellent tools for managing servers. It has a lot of different features, and I also love… more »
    Ranking
    Views
    58,493
    Comparisons
    50,491
    Reviews
    9
    Average Words per Review
    386
    Rating
    7.4
    Views
    51,070
    Comparisons
    36,397
    Reviews
    20
    Average Words per Review
    653
    Rating
    8.6
    Comparisons
    Learn More
    KVM
    Video Not Available
    Overview
    KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko.

    Proxmox VE is a complete virtualization management solution for servers. It is a powerful open-source platform and supports two virtualization technologies - KVM (Kernel-based Virtual Machine) for virtual machines and LXC for containers. Proxmox VE has a central user interface that allows you to manage not only VMs and containers, but also storage resources, network configuration, and high availability for clusters. It is enterprise-ready and is valued for its scalability and maximum flexibility, enabling you to virtualize very demanding workloads. Proxmox VE makes it possible for you to easily install, manage, and monitor hyper-converged (HCI) data centers.

    Proxmox VE Key Features

    The Proxmox VE platform has many powerful features, including:

    pen-source software, high-available clusters, command line, fencing, a web-based management interface, flexible storage options, REST API, live/online migration, storage replication stack, software defined storage, virtualized networking, backup and restore, two-factor authentication, role-based administration, and VM templates and clones.

    Proxmox VE Benefits

    Some of the biggest benefits of Proxmox VE are:

    • Central management: To manage all tasks of your virtual data center, you can use the central, web-based management interface.

    • Unique multi-master design: Proxmox VE allows you to carry out maintenance tasks cluster wide, from any node.

    • Minimize downtime: With the integrated live/online migration feature, you can move running virtual machines from one Proxmox VE cluster node to another, without any downtime or noticeable effect from the end-user side.

    • Granular access: Using Proxmox VE’s role-based permission management system helps you define granular access to all objects.

    • Multiple authentication sources: Proxmox VE supports multiple authentication sources, including Linux PAM, an integrated Proxmox VE authentication server, LDAP, Microsoft Active Directory, and OpenID Connect.

    • Several storage options: The Proxmox VE storage model is very flexible and the web interface allows you to add multiple storage types (LVM Group, iSCSI target, NFS Share, SMB/CIFS, Ceph RBD, Direct to iSCSI LUN, GlusterFS, CephFS).

    • Collaboration with Ceph: Proxmox VE fully integrates Ceph, giving you the ability to run and manage Ceph storage directly from any of your cluster nodes.

    • Scheduled backups: With Proxmox VE, backups can be scheduled so that they automatically run on specific days and times, for selectable nodes and guest systems.

    • IT infrastructure protection: Proxmox VE has a built-in firewall that works to protect your IT infrastructure. The firewall is completely customizable, allowing complex configurations via the GUI or CLI.

    Reviews From Real Users

    Here is some feedback from some of our users who are currently using the solution:

    A PeerSpot user who is a director at a tech services company says, “The most valuable features of Proxmox VE are the ease of containerization. Overall the solution is generic, feature-rich, and has compatibility.”

    Another PeerSpot user who is a head of IT operations at a tech services company mentions that "In addition to the virtualization, the firewall and the routing functions that it provides are valuable."

    Deepen D., director and CTO at TechnoInfotech, expresses that "The feature that I have found most valuable is that its storage container, LVM, and everything else work out of the box."


    Offer
    Learn more about KVM
    Learn more about Proxmox VE
    Sample Customers
    MediaWiki, Wikimedia Foundation, Wikipedia, Wikivoyage, Wikidata, Wikiversity, Commons
    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
    Top Industries
    REVIEWERS
    Energy/Utilities Company22%
    Aerospace/Defense Firm22%
    Computer Software Company22%
    Financial Services Firm11%
    VISITORS READING REVIEWS
    Comms Service Provider35%
    Computer Software Company21%
    Government7%
    Educational Organization5%
    REVIEWERS
    Computer Software Company25%
    Cloud Provider25%
    Retailer13%
    Government13%
    VISITORS READING REVIEWS
    Comms Service Provider41%
    Computer Software Company15%
    Government9%
    Educational Organization5%
    Company Size
    REVIEWERS
    Small Business56%
    Midsize Enterprise12%
    Large Enterprise32%
    VISITORS READING REVIEWS
    Small Business22%
    Midsize Enterprise22%
    Large Enterprise57%
    REVIEWERS
    Small Business74%
    Midsize Enterprise13%
    Large Enterprise13%
    VISITORS READING REVIEWS
    Small Business25%
    Midsize Enterprise23%
    Large Enterprise51%
    Buyer's Guide
    KVM vs. Proxmox VE
    May 2022
    Find out what your peers are saying about KVM vs. Proxmox VE and other solutions. Updated: May 2022.
    607,332 professionals have used our research since 2012.

    KVM is ranked 4th in Server Virtualization Software with 9 reviews while Proxmox VE is ranked 2nd in Server Virtualization Software with 20 reviews. KVM is rated 7.4, while Proxmox VE is rated 8.4. The top reviewer of KVM writes "Stable, easy to set up, and very easy to use". On the other hand, the top reviewer of Proxmox VE writes "Rivaling the stiffest and competition in its category this solution suffers only from being young". KVM is most compared with Oracle VM VirtualBox, Hyper-V, VMware vSphere, Oracle VM and VMware Workstation, whereas Proxmox VE is most compared with Hyper-V, Oracle VM VirtualBox, VMware vSphere, Nutanix AHV and Citrix Hypervisor. See our KVM vs. Proxmox VE report.

    See our list of best Server Virtualization Software vendors.

    We monitor all Server Virtualization Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.