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Oracle VM VirtualBox 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
5.3
Oracle VM VirtualBox offers quick ROI by reducing costs and streamlining processes, with users reporting high satisfaction and time savings.
Sentiment score
7.5
Proxmox VE offers cost savings, enhanced server capabilities, and improved efficiency, with benefits outweighing its learning curve challenges.
Sentiment score
6.7
VMware vSphere boosts efficiency, lowering costs and hardware needs, ensuring rapid ROI and long-term financial benefits despite initial investment.
I did not perform any long-term stress tests, just for a couple of hours or days on every application.
Technical Officer at ADN Telecom
We can say 10% is the approximate amount of savings because most of the things are automated and streamlined, so the manual work is eliminated in most cases.
Sr. Technical Architect at StarOne IT Solutions
 

Customer Service

Sentiment score
7.7
VirtualBox users prefer online documentation and community support over Oracle's support, which is seen as capable but slow.
Sentiment score
7.4
Proxmox VE users often utilize community resources and documentation over paid support, though improved direct communication is desired.
Sentiment score
6.7
VMware vSphere's support is mixed: knowledgeable yet inconsistent, with delays and concerns on language and availability post-Broadcom acquisition.
Their forum and documentation is more than enough for technical support.
Technical Officer at ADN Telecom
Priority one issues are usually addressed by engineers within one to two hours.
Server Support Engineer at CIPL - Corporate Infotech Pvt Ltd
Recently, support has been less friendly and slower, especially after the company was acquired by Broadcom.
Revenue Operations Specialist at KK AGC
If we have issues, the support tends to be unreliable
Technical Assistant at EOCD
 

Scalability Issues

Sentiment score
7.2
Oracle VM VirtualBox is valued for scalable environments, though hardware limitations and memory overhead can impede performance.
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
7.2
VMware vSphere offers excellent scalability and flexibility, enabling seamless growth despite potential licensing constraints, adapting to diverse infrastructures.
Scaling is easy, whether it is hyperconverged or a three-tier architecture.
Manager of Solutions and Support at Esconet Technologies Pvt. Ltd.
VMware vSphere is highly scalable in terms of the number of users and the number of servers it can handle.
Revenue Operations Specialist at KK AGC
It is a highly scalable solution.
Technical Assistant at EOCD
 

Stability Issues

Sentiment score
7.1
Oracle VM VirtualBox is generally stable but faces occasional issues, especially on Windows, rated around eight for stability.
Sentiment score
8.1
Proxmox VE is highly stable and reliable, performing well on older hardware with minimal performance issues.
Sentiment score
7.9
VMware vSphere is reliable, with issues mainly due to third-party hardware, and frequent updates enhance stability and performance.
The snapshot functionality in Oracle VM VirtualBox is effective for management purposes.
Chief Executive Officer at Kipustec
It is a very stable hypervisor solution.
Manager of Solutions and Support at Esconet Technologies Pvt. Ltd.
While they are generally stable, if outages occur, they tend to be due to brands like HP or Dell, not VMware vSphere itself.
Revenue Operations Specialist at KK AGC
Mostly we don't have issues, but sometimes we have faced some stability issues because of some bugs and some CPU compatibility issues with Intel CPUs.
IT Director at Def Industry
 

Room For Improvement

Oracle VM VirtualBox users desire better networking, stability, resource management, and enhanced integration with diverse hardware and remote solutions.
Proxmox VE faces challenges with performance, interface complexity, support, and lacks effective monitoring, documentation, and scalability features.
VMware vSphere is costly and complex, facing performance, integration, and upgrade challenges, limiting accessibility for smaller enterprises.
Having some kind of API to maintain Oracle VM VirtualBox would be beneficial.
Technical Officer at ADN Telecom
The cost changed from perpetual to subscription, and there is a need for alternative solutions.
Manager of Solutions and Support at Esconet Technologies Pvt. Ltd.
Another area is the stability during upgrades from older versions to newer versions, where we face issues.
Manager of Systems at Sir Syed University of Engineering and Technology
Sometimes, it is difficult to find documentation for specific tools and solutions.
Server Support Engineer at CIPL - Corporate Infotech Pvt Ltd
 

Setup Cost

Oracle VM VirtualBox provides a free version popular for cost-effectiveness, with enterprise licensing seen as expensive by some.
Proxmox VE is an open-source, cost-effective virtualization solution with optional support, valued for its affordability against competitors.
VMware vSphere's complex pricing offers flexibility and features, but businesses should evaluate needs to avoid unnecessary costs.
In the enterprise scenario, all software solutions, including Oracle VM VirtualBox, are expensive.
Chief Executive Officer at Kipustec
Many customers are trying to avoid it due to its high cost.
Technical Assistant at EOCD
Costs significantly increased from perpetual to subscription, with prices rising by two to three times over three to five years.
Manager of Solutions and Support at Esconet Technologies Pvt. Ltd.
The solution is too expensive.
Revenue Operations Specialist at KK AGC
 

Valuable Features

Oracle VM VirtualBox is free, versatile, and easy to use, ideal for testing, education, and stable multi-platform virtualization.
Proxmox VE provides a user-friendly, scalable, and affordable virtualization solution with strong community support and feature-rich environment.
VMware vSphere is praised for centralized management, cost efficiency, strong performance, scalability, and advanced features like vMotion and HA.
Its snapshot functionality helps with backup management.
Chief Executive Officer at Kipustec
The guest OS compatibility was tremendous because I used Oracle VM VirtualBox on Linux and ran Windows applications on top of that, working seamlessly.
Technical Officer at ADN Telecom
The vMotion feature is beneficial for online migration of virtual machines from one host to another without downtime.
Manager of Solutions and Support at Esconet Technologies Pvt. Ltd.
The tool is highly available, which is crucial for implementing critical applications requiring 24/7 availability.
Revenue Operations Specialist at KK AGC
I always use VMware vSphere vMotion; we work with this feature all the time. vMotion is very useful; that's why we use the virtualization.
IT Director at Def Industry
 

Mindshare comparison

As of April 2026, in the Server Virtualization Software category, the mindshare of Oracle VM VirtualBox is 5.7%, down from 7.1% compared to the previous year. The mindshare of Proxmox VE is 12.2%, down from 18.4% compared to the previous year. The mindshare of VMware vSphere is 19.4%, up from 17.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Server Virtualization Software Mindshare Distribution
ProductMindshare (%)
VMware vSphere19.4%
Proxmox VE12.2%
Oracle VM VirtualBox5.7%
Other62.7%
Server Virtualization Software
 

Featured Reviews

Tanvir Siddique - PeerSpot reviewer
Technical Officer at ADN Telecom
Easily accesses open solutions with seamless compatibility for testing and development
The most valuable feature is the seamlessness. When I install a Linux operating system, I can use Windows applications through Oracle VM VirtualBox seamlessly. There are many applications that work only on Windows. For desktop testing purposes, I used Oracle VM VirtualBox, and it works fine. The guest OS compatibility was tremendous because I used Oracle VM VirtualBox on Linux and ran Windows applications on top of that, working seamlessly.
Juan Barandiaran - PeerSpot reviewer
CTO at BCloud Services SAC
Effortless management with robust support enhances performance and cost savings
My primary use case for Proxmox VE focuses on replacing VMware solutions and migrating to a Centric Solution for medium-sized companies. This product serves as a hypervisor in environments where performance is crucial Proxmox VE has provided performance improvements, particularly with its…
IA
IT Director at Def Industry
Has improved infrastructure monitoring and resource management but requires better support and cost efficiency
The high availability feature's resilience is not bad, but it could be better. For example, whenever you lose any hardware, you will have interruptions on the services, and it reboots again on the other hardware host which is available at the crash time. That's good, but we would prefer to have zero downtime instead of the rebooting on the other server. We would prefer to have a zero downtime always-on configuration. VMware vSphere has a built-in feature called Fault Tolerance, but it's very limited for very limited VMs or very limited core count or CPU count, so it's not so useful for all the environment because of the limitations. The Fault Tolerance (FT) feature is very limited to very little core counts or very little VM counts, so you can't run the Fault Tolerance for all the servers or all the VMs, and that's very bad. If VMware vSphere could have any kind of built-in patch management environment with a repository, offline repository option, with test, non-production, and production environment separated, this would be perfect. Management of patch management with operating systems and including third-party applications which are running on the servers would enhance the VMware vSphere environment. VMware vSphere is very expensive. The worst aspect of VMware vSphere is the price. I can't tell you the exact cost at this time because the other team members in my teams are working on it, but I remember that the prices are very high. VMware vSphere is easy to scale, but it could be better, similar to a Kubernetes environment. It should have an automatic scale-out feature when the load gets high; if it gets some scale out automatically, it would be better than this, similar to Kubernetes or OpenShift.
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Comparison Review

it_user234735 - PeerSpot reviewer
Technology Consultant, ASEAN at a tech services company with 501-1,000 employees
May 10, 2015
Hyper-V 2012 R2 vs. VMware vSphere 5.5
I was won with Hyper-V 2012R2 recently and the table below based on customer RFP (edited). This articles all about technical, there is not related with TCO/ROI, licensing cost, “political”, etc. Another to noted is the Windows Server 2012 licenses is based on 2 socket CPU, meanwhile…
 

Top Industries

By visitors reading reviews
Comms Service Provider
15%
Computer Software Company
10%
Manufacturing Company
8%
Financial Services Firm
7%
Comms Service Provider
11%
Computer Software Company
11%
Manufacturing Company
9%
Government
7%
Financial Services Firm
10%
Computer Software Company
10%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise20
Large Enterprise17
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise11
Large Enterprise10
By reviewers
Company SizeCount
Small Business175
Midsize Enterprise137
Large Enterprise259
 

Questions from the Community

How does KVM compare to Oracle VM VirtualBox?
KVM is easy to use, stable and flexible. It is mature and very fast. It is an affordable open-source solution that is...
What is your experience regarding pricing and costs for Oracle VM VirtualBox?
Maintenance is not necessary because I did not use it for heavy loads.
What needs improvement with Oracle VM VirtualBox?
If there were more API access so that I could run it headlessly, similar to Proxmox where I can use API, it would be ...
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...
How does Nutanix AHV compare with VMware vSphere?
To understand which is better - Nutanix AHV or VMware vSphere - you need to do a product comparison. Both products su...
 

Overview

 

Sample Customers

Airbus, Colorado State University, SCS Africa, Wolf Medical Systems.
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 Broadcom, Microsoft, Proxmox and others in Server Virtualization Software. Updated: March 2026.
885,667 professionals have used our research since 2012.