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Top Rated
752 Ratings
69 Ratings
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Score 8.2 out of 100

VMware ESXi

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Top Rated
752 Ratings
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Score 9.2 out of 100

Feature Set Ratings

  • VMware ESXi ranks higher in 1 feature set: Server Virtualization

Server Virtualization

8.6

Citrix Hypervisor

86%
8.7

VMware ESXi

87%
VMware ESXi ranks higher in 3/5 features

Virtual machine automated provisioning

8.0
80%
10 Ratings
8.7
87%
117 Ratings

Management console

9.0
90%
11 Ratings
8.8
88%
129 Ratings

Live virtual machine backup

9.0
90%
10 Ratings
8.3
83%
111 Ratings

Live virtual machine migration

9.0
90%
11 Ratings
9.3
93%
117 Ratings

Hypervisor-level security

8.0
80%
10 Ratings
8.6
86%
118 Ratings

Attribute Ratings

  • VMware ESXi is rated higher in 11 areas: Likelihood to Recommend, Usability, Availability, Performance, Support Rating, Implementation Rating, Configurability, Ease of integration, Product Scalability, Vendor post-sale, Vendor pre-sale
  • Citrix Hypervisor and VMware ESXi are tied in 1 area: Likelihood to Renew

Likelihood to Recommend

8.0

Citrix Hypervisor

80%
11 Ratings
9.4

VMware ESXi

94%
130 Ratings

Likelihood to Renew

10.0

Citrix Hypervisor

100%
3 Ratings
10.0

VMware ESXi

100%
5 Ratings

Usability

6.1

Citrix Hypervisor

61%
2 Ratings
9.3

VMware ESXi

93%
4 Ratings

Availability

5.5

Citrix Hypervisor

55%
2 Ratings
10.0

VMware ESXi

100%
1 Rating

Performance

6.4

Citrix Hypervisor

64%
2 Ratings
10.0

VMware ESXi

100%
1 Rating

Support Rating

8.0

Citrix Hypervisor

80%
4 Ratings
9.2

VMware ESXi

92%
114 Ratings

In-Person Training

2.7

Citrix Hypervisor

27%
1 Rating

VMware ESXi

N/A
0 Ratings

Implementation Rating

7.3

Citrix Hypervisor

73%
2 Ratings
10.0

VMware ESXi

100%
2 Ratings

Configurability

5.5

Citrix Hypervisor

55%
1 Rating
9.0

VMware ESXi

90%
1 Rating

Contract Terms and Pricing Model

Citrix Hypervisor

N/A
0 Ratings
10.0

VMware ESXi

100%
1 Rating

Ease of integration

5.5

Citrix Hypervisor

55%
1 Rating
9.0

VMware ESXi

90%
1 Rating

Product Scalability

6.4

Citrix Hypervisor

64%
1 Rating
10.0

VMware ESXi

100%
1 Rating

Vendor post-sale

8.2

Citrix Hypervisor

82%
1 Rating
10.0

VMware ESXi

100%
1 Rating

Vendor pre-sale

8.2

Citrix Hypervisor

82%
1 Rating
10.0

VMware ESXi

100%
1 Rating

Likelihood to Recommend

Citrix

The free version is a boon for small businesses that want to have a hypervisor but not the headaches of using something that requires licensing. It is more than adequate to compete with the lesser versions of Hyper-V or VMware. Any small business that wants to lessen its hardware footprint could benefit from this product. If you are a medium or large business it is also a nice addition to the cupboard if you already use other Citrix products and are familiar with the Citrix support process. Shops that are fully committed to VMWare or MS Hyper-V should probably avoid this as it would just act to dilute your system and add unneeded complexity. Citrix Hypervisor is not most common Hardware Hypervisor on the market but it is more than competent for most Enterprise Deployments.
Read full review

VMware

I have seen and managed VMware environments of various sizes from a larger company down to small and medium businesses. I feel it is an excellent solution for all business sizes. For anyone looking for a virtual environment for their infrastructure, it works well and can scale easily as a business grows. The tools provided make management simple, and VMware support is one of the best experiences I have ever had out of all of the companies I have dealt with. They are a benchmark in that regard.
Read full review

Pros

Citrix

  • Resource Monitoring is a good and I am able to monitor my entire infrastructure whether I'm using my iPhone remotely or while on any company-issued laptop to ensure our services run at peak efficiency.
  • CLI - the command line is not hard to use. It can take a little time to get used to the commands but once you have them down managing the environment from the GUI or CLI is pretty easy.
  • Backups are very easy to start and manage with XenCenter or XoA. Keeping business DR scenarios achievable.
Read full review

VMware

  • VMware ESXi provides a wizard for the hypervisor to be installed making it very easy to configure on almost any bare metal box.
  • It provides an easy interface to see information about the Virtual Machines you have set on the VMware ESXi hypervisor.
  • VMware ESXi is also very easily upgradable. The hypervisor takes care of all the necessary tasks prior to a hypervisor upgrade, allowing for peace of mind when upgrading and no effect on the virtual machines you have running.
Read full review

Cons

Citrix

  • Adding or presenting additional storage to the host can often be a task that is far more involved than competitive products.
  • The product can require reboots more frequently than competitors due to the DOM kernel getting "hung up".
  • Sometimes when a virtual machine is deleted it still leaves behind orphaned vdisks.
  • Recovering from the loss of a host can sometimes cause virtual machines to require lengthy command prompt scripting to fix so they can be powered back on from another host.
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VMware

  • It would be nice if it was easier to upgrade between versions/releases
  • Trying to find some of their software downloads can be difficult, as their website is not the greatest - also requires you to be logged in to view any of their software downloads (which is difficult if you're working with a reseller)
  • When you click on "Virtual Network Cards" as a hotlink - it generally breaks your session. So that small bug could also be patched.
Read full review

Pricing Details

Citrix Hypervisor

Starting Price

Editions & Modules

Citrix Hypervisor editions and modules pricing
EditionModules

Footnotes

    Offerings

    Free Trial
    Free/Freemium Version
    Premium Consulting/Integration Services

    Entry-level set up fee?

    No setup fee

    Additional Details

    VMware ESXi

    Starting Price

    Editions & Modules

    VMware ESXi editions and modules pricing
    EditionModules

    Footnotes

      Offerings

      Free Trial
      Free/Freemium Version
      Premium Consulting/Integration Services

      Entry-level set up fee?

      No setup fee

      Additional Details

      Likelihood to Renew

      Citrix

      With the knowledge and usage of solutions from VMware and Microsoft offering more compelling cloud integrated options it makes it more compelling in many environments which I consult. XenServer is a good product and fits the bill in many smaller environments but as clients look to the cloud or a hybrid cloud it can in some cases make it a bit more difficult.
      Read full review

      VMware

      It is critical to our business, what started out as a way to do certain functions, it has now become core to ensuring our product is available to our customers and reducing our costs to operate and reduce our recovery time and provisioning servers. Their support is great and the costs to renew is reasonable.
      Read full review

      Usability

      Citrix

      XenServer is quite usable due to the simplicity the management and installation provide for an administrator. The console for management is very intuitive and can easily be installed on any Windows operating system. There is a relatively simple web console that can be implemented as well that enhances the usability to provide service to non-administrators.
      Read full review

      VMware

      The interface is fairly intuitive for most things, and the areas that are a little less obvious usually have fantastic documentation in the online knowledgebase. In 3-4 years of managing our ESXi hosts, I think that I have only opened 4-5 support cases for things that I could not figure out myself or find answers to on the website.
      Read full review

      Reliability and Availability

      Citrix

      It's been a little problematic in the past at larger VDI deployments requiring a bit more care and feeding than other vendors. But the latest releases (6.5.x) have brought about huge improvements in the stability and availability.
      Read full review

      VMware

      Without the need to patch the servers with bug fixes and enhancements we whave not experienced any downtime with VMware issues. Even the bug fixes and updates do not cause of downtime as we just migrate the servers to the opposite node and update the one and then move servers back. Very simple and painless.
      Read full review

      Performance

      Citrix

      When running like a top XenServer is a fantastic hypervisor. There is relatively low overhead on the Dom0 so workloads get the most of the resources.
      Read full review

      VMware

      We do not notice any difference between a physical and virtual server running the same workload. In fact we can scale quicker with the virtual server than we can with the physical.
      Read full review

      Support Rating

      Citrix

      Anytime I had to request support from the Citrix Hypervisor website I had an instant answer and it was straight to the point. I also used the forums available to everyone and always had success from both the technical staff and from the community.
      Read full review

      VMware

      I can't say enough good about VMware's support team. To an individual they take ownership of the case, provide thorough answers, and follow up regularly. On one occasion, a problem we experienced with NSX Endpoint was escalated to development for a permanent resolution after a workaround was found. In my experience, most companies would have tried to find a way to close a case like that instead of taking it all the way. Most importantly, when production is down and every second counts, they VMware teams understand that urgency and treat your issue as if it were the only one they had to deal with. You can't ask for better.
      Read full review

      In-Person Training

      Citrix

      Part of a training for certification to become a trainer for Citrix included an in-person training with a Master CCI. The XenServer training at this time was pretty simplified due to the product primarily being installed however you did have to work with it and mildly configure the system.
      Read full review

      VMware

      No answers on this topic

      Online Training

      Citrix

      Haven't given it a real go with any online training however there are some options out there. I have taught a course following Citrix material for XenDesktop which leverages XenServer and it is pre-built so not the best for XenServer specifically for installation but configuration is mildly touched on
      Read full review

      VMware

      No answers on this topic

      Implementation Rating

      Citrix

      Ensure you review the HCL (hardware compatibility list) and reach out to the hardware vendors to ensure they support the platform and in case they have documentation that can be followed for the implementation. Also ensure the prerequisites are completed prior to implementation so that as few unexpected delays occur as you can control.
      Read full review

      VMware

      Jsut read and follow anything your storage provider may require to allow the integration of VMware with storage operations, outside of that VMware jsut works.
      Read full review

      Alternatives Considered

      Citrix

      VMware seems to be the standard and is more widely accepted. However, Citrix Hypervisor, is easily learned and cheaper. We have also used VirtualBox to offer up ideas for other free products. VirtualBox seems to be easier for end users who just want simple VMs and not necessarily entire environments. Citrix is good for environment virtualization.
      Read full review

      VMware

      As long as you're using Nutanix AOS on Nutanix hardware and are paying their software support fees, AOS is a valid competitor to VMware and can save money due to not needing a license and having their server management system built into the base host management system. If you aren't using Nutanix hardware, however, VMWare is in most cases the best way to go. I cannot comment on HyperV, but most IT people I know either use it because they have to (most) or they like it better (not many).
      Read full review

      Contract Terms and Pricing Model

      Citrix

      No answers on this topic

      VMware

      it has been fair and easy to understand. I know VMware is looking at wanting to change from CPU to core pricing so we will see what that looks like when it happens.
      Read full review

      Scalability

      Citrix

      The servers latest versions have made massive improvements to scalability. But from past experience there have been issues when running workloads for extended periods of time without reboot on the hosts. I would need to run similar workloads on the 6.5 release which has changed much of the bottlenecks or issues so I'd imagine its far more capable now, Perhaps able to stand near the best in the market.
      Read full review

      VMware

      We started out with a two-server cluster and adding a third or fourth is very straightforward and simple with no issues. You just need to be aware of the size of your Vcenter Server to handle the workload, but still the resources needed is very minimal
      Read full review

      Return on Investment

      Citrix

      • Xenserver is easy to learn. We paid for support only for installation and deployment in the first three years, and now our team has the knowledge to solve most problems.
      • Low CAPEX if you have a team that uses open source software day by day.
      • But paid support is necessary to solve critical problems. The open source community is not enough. Actually, we have difficulty solving some bugs without paying for support.
      • Medium OPEX if you have a team that uses open source software day by day.
      Read full review

      VMware

      • Positive for management and support of IT infrastructure.
      • Maximising available computing power -IE, Microsoft's hypervisor run's on top of Windows which uses a lot of computing power.
      • With vCenter being able to manage everything in one place, less trained users are needed to manage large numbers of ESXi hosts and SAN's etc.
      Read full review

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