Compare KVM vs. VMware vSphere

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KVM Logo
Read 9 KVM reviews.
85,760 views|78,311 comparisons
VMware vSphere Logo
54,089 views|43,501 comparisons
Most Helpful Review
Find out what your peers are saying about KVM vs. VMware vSphere and other solutions. Updated: September 2020.
438,725 professionals have used our research since 2012.
Quotes From Members

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

Pros
"The KVM service is well managed with a central policy interface.""The GUI interface makes the management of KVM easier than ever before.""I like that this is an open-source solution. It is very powerful, and it's easy.""Scaling the solution is easy. You just have to add more hardware.""Our production servers are running in Linux, and this solution supports that environment well.""I find the density of the product most valuable. It is density that a technologist can just assign page merging. This is what makes KVM one of the important players of the virtualization market.""The initial setup was simple.""It is an open ecosystem, and we see there is a benefit in open-source solutions."

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"We are able to patch our hosts during production hours with the ability to keep services running.""Its DR facility is good. Within a moment, data can be retrieve from another physical location over the Internet. The speed to recover data is good.""The ability of a running VM to be quickly relocated to another hypervisor or launched at another site via replicated storage greatly reduces downtime.""The most valuable feature is the VDP Backup solution.""The vMotion in particular I think is the most valuable because this feature provides migrations of virtual machines in case you want to run do maintenance.""It has allowed us to be more resilient to infrastructure and hardware failure, reduced hardware costs, and decreased recovery time from failures.""The free ESXi hypervisor was a great way to get started, as it allowed us to introduce virtual machines so that users could start to experience the advantages.""Production people can quickly reboot the server with ESXi Quick Boot."

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Cons
"The initial setup of this solution is more difficult than some of the competing products and it could be improved.""Business continuity features need to be added.""The virtual manager and the graphical QEMU for KVM need some improvement.""The solution should be more user friendly. We are struggling with the command lines.""Support for VF is needed, where you can, for example, export from VMware to KVM.""The stability of this solution is less than other products in the same category.""The KVM tech support is really bad. They are not very responsive.""We would like to have a software lifecycle solution included in this solution. We can handle the software needed for KVM, but also the software that we provide. A lifecycle component would be very beneficial."

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"Get the HTML5 client to 100% parity to replace the Flash client.""OS templates should be readily available, so there is no need to get an OS separately. Only the activation part should be different, which is not presently available due to the need to get the OS from a different location, then create VMs.""The ability to run ARM based VMs on an x86 platform for testing purposes. With the growing use of SBCs running on ARM architectures for IoT devices, it would be very useful if developers could build and deploy VMs running operating systems like Raspbian used on Raspberry Pi devices on their existing x86 ESXi environments. Even if this is not possible through some form of emulation, the ability to add ARM hypervisors to vSphere environments would be very useful. This will enable more rapid development cycles for customers just getting started with IoT but already existing vSphere users.""I would like to see better fault and performance reporting in the GUI.""I would like to see VMware vSphere provide a centralized patch service on the VMware level, regardless of your operating systems.""Reducing the cost of vSphere would be an improvement.""It would be great if the free version included a management tool that was a scaled-down vCenter Manager.""I would like more Amazon stuff inside of VMware."

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Pricing and Cost Advice
"This solution is an open-source, free platform with paid support.""This solution came with the Linux license.""It is cheaper than other solutions out there on the market.""It is cheaper than other competitors like VMware or Hyper-V."

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"VMware is costly versus other competitors but is still one of the market leaders and expanding now with partners like AWS.""You will find the cost is reasonably cheaper.""Do not buy based on price alone. Many of my customers chose the lowest cost option only to discover that the additional funds needed to access even a few more features would have been money well spent. Likewise, if you are going to spend more money on additional features, then have a plan to actually deploy and integrate those features into your infrastructure. Many customers never take full advantage of the many features that they are paying for and that can be avoided by being proactive in developing your overall vision for the infrastructure.""The license of VMware is a one-time payment and you can continue to enroll in support for troubleshooting and also administer the licenses.""The price is high, but you get back a lot.""Our ROI is good.""There is an average performance boost, especially if you use VM encryption inside the VMware with another product, like McAfee. You will see great improvement in these cases.""The licensing fees are on a yearly basis."

More VMware vSphere Pricing and Cost Advice »

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Questions from the Community
Top Answer: KVM will be working just like or better than VMware. KVM is available as free or paid depending on your choice and you can convert any installed Linux into a KVM Hypervisor with few commands. All the… more »
Top Answer: The KVM service is well managed with a central policy interface.
Top Answer: This solution is an open-source, free platform with paid support.
Top Answer: Question one: Does the customer already have vSphere because than I would suggest not to use Acropolis? Nutanix wants to control the entire platform with its HCI solution like VMware. Question 2:… 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: This is just an off the cuff quick response and not a well researched documented and referenced design. It is, however, a conclusion after time spent in making some choices on stacks with the intent… more »
Ranking
Views
85,760
Comparisons
78,311
Reviews
9
Average Words per Review
371
Avg. Rating
7.9
Views
54,089
Comparisons
43,501
Reviews
76
Average Words per Review
593
Avg. Rating
8.9
Popular Comparisons
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KVM
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VMware
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.

VMware vSphere is the leading server virtualization platform with consistent management for virtual data centers.

Deliver business value from day one with powerful server virtualization, breakthrough availability, safe automated management and intelligent operational insight that adapts to your environment. Automate workload placement and resource optimization based on preset customizable templates.

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Learn more about KVM
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Sample Customers
MediaWiki, Wikimedia Foundation, Wikipedia, Wikivoyage, Wikidata, Wikiversity, Commons Abu Dhabi Ports Company, ACS, AIA New Zealand, Consona, Corporate Express, CS Energy, and Digiweb.
Top Industries
VISITORS READING REVIEWS
Computer Software Company42%
Comms Service Provider18%
Media Company7%
Government6%
REVIEWERS
Financial Services Firm12%
Energy/Utilities Company9%
Retailer9%
Manufacturing Company8%
VISITORS READING REVIEWS
Computer Software Company39%
Comms Service Provider15%
Media Company7%
Government6%
Company Size
REVIEWERS
Small Business60%
Midsize Enterprise13%
Large Enterprise27%
REVIEWERS
Small Business26%
Midsize Enterprise27%
Large Enterprise46%
VISITORS READING REVIEWS
Small Business28%
Midsize Enterprise18%
Large Enterprise54%
Find out what your peers are saying about KVM vs. VMware vSphere and other solutions. Updated: September 2020.
438,725 professionals have used our research since 2012.
KVM is ranked 3rd in Server Virtualization Software with 9 reviews while VMware vSphere is ranked 1st in Server Virtualization Software with 47 reviews. KVM is rated 7.8, while VMware vSphere is rated 9.0. The top reviewer of KVM writes "Good performance, but better management features and integration are needed". On the other hand, the top reviewer of VMware vSphere writes "Makes Resources Available & Services More Reliable". KVM is most compared with Oracle VM VirtualBox, Hyper-V, Oracle VM, Proxmox VE and Citrix Hypervisor, whereas VMware vSphere is most compared with Proxmox VE, Nutanix Acropolis, Oracle VM, VMware Workstation and RHEV. See our KVM vs. VMware vSphere report.

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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.