Parallels Vs Vm For Mac
Editor’s Note: This article was originally published at Computerworld.com.
- When comparing VMWare Fusion vs Parallels Desktop, the Slant community recommends VMWare Fusion for most people.In the question“What is the best VM applications for Mac?”.
- Parallels Desktop vs. VMware Fusion. VMware Workstation and VMware Player. VMware Fusion is most compared with Parallels Desktop, VMware Horizon View and VMware Workstation. Apple Remote Desktop, IBM Endpoint Manager, Parallels Mac Management for Microsoft SCCM, and other solutions. VMware Fusion is a software hypervisor for Macintosh.
- Ever wonder what graphics really looks like side by side comparing VMware Fusion 3 to Parallels Desktop 5? This video will show them to you with two machines running side by side with multiple.
Editor’s Note: This article was originally published at Computerworld.com. Both Parallels Desktop and VMware Fusion deliver on the core goal of allowing Macintosh users to run Windows.
Both Parallels Desktop and VMware Fusion deliver on the core goal of allowing Macintosh users to run Windows applications without needing to reboot their computers.
The biggest difference between them right now is that Parallels’ product is finished while VMware’s Fusion is still in beta testing. In fact, Parallels recently announced the availability of the third beta version of the next release of its software, which includes support for upgrading a virtual Windows XP system to Windows Vista, among other features.
The fact that Fusion is still in beta is rather evident. Several configuration dialogs include the sentence, “This device will be editable in a future release,” and there are some minor stability problems.
Performance is another major difference, and it is linked to the fact that Fusion is still in beta. Although the time it takes to install or boot Windows or to run most applications is similar between both Parallels and Fusion, some actions that involve redrawing the screen are slower in Fusion, sometimes resulting in a sluggish feel by comparison.
Running benchmark tests within similarly configured virtual machines under each application reveals dramatic differences in some processor and graphics functions. (Parallels’ scores for graphics performance are almost double those of Fusion.) The most likely cause for these differences is explained in a Fusion alert dialog that informs users that it is running in a debug mode that reduces performance and that can’t be disabled in the current release.
The finished version of Fusion will tell a fuller tale on the performance front.
Setup
Both Parallels Desktop and VMware Fusion are easy to install. Both offer setup assistants that guide users through creating a virtual machine and offer configuration suggestions based on the operating system being installed and the hardware specifications of the Mac.
Fusion takes advantage of the dual-core processors used in almost all Intel Macs by allowing you designate whether the virtual machine will be able to use one or both cores. This is a nice feature because you can opt to retain the processing power of one core exclusively for Mac OS X and Mac applications, or you can throw all the processing power to the virtual machine.
Parallels makes setup much easier than Fusion with its “Express Windows OS Installation Mode” that performs the entire install process of either Windows XP or Vista for you. All you need to do is enter your name and Windows activation key. This is both extremely user-friendly and a great-time saving convenience.
Both products offer a set of tools and specialized drivers for Windows to enhance its performance in a virtual environment. These tools offer things such as a shared folder that can be accessed from Windows and Mac OS X, the ability to respond to the cursor appropriately as you move into or out of the window containing the virtual machine, and enhanced hardware support. Both products also offer a tool for compressing the hard drive image file that serves as the virtual machine’s hard drive.
The boot process for virtual machines created with either Parallels or Fusion is essentially the same as the boot process for an actual PC. One difference is that Fusion provides you with a virtual BIOS configuration tool that can be used to change boot options such as the order in which the virtual machine searches for a bootable drive. For its part, Parallels manages these features through a virtual machine configuration dialog. Fusion also supports network boot from a Windows PXE server, which Parallels does not.
Although Parallels boots consistently, Fusion is prone to the occasional unexplained Windows boot failure (generally resolved by simply rebooting the virtual machine).
Ease of use
Most users will find both Fusion and Parallels easy to use and will probably never even need to adjust the configuration settings from their defaults. With their respective tool sets installed under Windows, users can easily move between the Windows and Mac OS X environments. The shared folders technique used in both applications is solid, though it took me a couple of reinstalls of the VMware Tools to get this to function properly in Fusion.
VMware delivers another option to accessing files between operating systems with its support for drag and drop of files and folders between virtual machines and Mac OS X. This is actually a much easier method than setting up shared folders, and it can be used without having to configure anything. But, as with the shared folders feature, I found that it did not always function properly. This is one of the few places where Fusion truly delivers something that every user will appreciate that Parallels does not, though this feature is slated for the next version of Parallels’ software, Desktop 2.
Parallels also offers a couple of features that make it more user-friendly than Fusion. One of those is clipboard support, allowing you to copy and paste between Mac and Windows applications. This makes working between the two operating systems much more seamless.
Overall, both Parallels and Fusion rate well in the ease-of-use category — or will once some of the reliability issues are worked out during Fusion’s development.
Advanced configuration
Parallels offers a much broader set of options for advanced configuration. Fusion currently allows for configuration of shared folders, the use of a single hard drive image file, sound, CD-ROM access (read-only) and some basic network options.
In contrast, Parallels provides the ability to specify more granular virtual hardware information as well as the use of a disk image to mimic the functionality of a floppy drive. Parallels also offers the ability to clone or re-create with a different maximum size the hard drive image of a virtual machine. (Both applications use dynamically expanding hard drive images, but both also require a maximum size be set for the image when it is created.)
Parallels also supports the connection of multiple hard drive images and the use of multiple disk images or physical drives for use as CD/DVD-ROMs, as well as the creation of virtual serial and parallel ports. All of these features make it a more customizable than Fusion to a user or an application’s needs.
Both Parallels and Fusion offer limited choices for how virtual machines handle networking. Both products allow you to choose between using Network Address Translation to share your Mac’s network connection or choosing bridged access to a specific network adapter. Parallels also offers a host-only option that allows the virtual machine to connect to your Mac and any other virtual machines as though they were connected via a network. But it does not allow actual network access.
Neither product supports connection to multiple network cards or networks at this time, though Parallels Desktop 2 promises support for up to five network cards.
USB device access
Both Parallels and Fusion support access to USB devices connected to a computer, though Parallels currently only supports USB 1.1. Parallels gives you the option of having devices be automatically detected and used by the virtual machine or to manually choose the devices that will be used. It appears that this is the how Fusion will ultimately function, but that the capability has not yet been implemented.
Parallels for mac low disk space. A new “Free Up Disk Space” feature better handles multiple virtual machines, and new snapshots will occupy up to 15% less disk space than in previous versions. Parallels Desktop 14 is compatible with both macOS Mojave and the latest version of Windows 10. Version 14 offers enhanced storage optimization, offering optimized storage of virtual disk images. Mojave can run as both a host and guest operating system, allowing users to test the latest version of macOS with no risk of losing data in their everyday machine.
Fusion offers access to built-in iSight cameras, Apple’s Bluetooth adapter (built-in or USB) and built-in IR ports, which are treated as USB 2.0 devices and are not supported by Parallels.
Overall impressions
Both Parallels Desktop and VMware Fusion are good products. However, it is clear that Fusion still needs some work in terms of its performance and to fully implement its feature set. It also isn’t quite as stable and reliable as Parallels.
All of that is to be expected from a product currently in beta testing, but it does mean that Parallels remains the better option for the time being despite the fact that Fusion offers some features that the commercial release of Parallels doesn’t, such as drag and drop, control over how many processor cores virtual machines can access and full USB 2.0 support.
It is also worth noting that the next release of Parallels is slated to offer at least two of those features — drag and drop and USB 2.0. It is also slated for several more advances including the ability to use a Boot Camp partition as a Windows boot disk instead of a hard drive image file, greatly enhanced network options and full support for CD/DVD drives (including burn capabilities and access to copy-protected discs). There will also be a new mode called “coherence” that will allow Windows applications to run alongside Mac applications without the need for a separate Windows interface (i.e. Windows applications display right on the Mac desktop and appear in the Dock).
As a result, it seems that for the foreseeable future, VMware will remain a generation behind Parallels.
Explainer: Virtualization Vs. Boot Camp
Products that use virtualization are, of course, not the only option for running Windows on an Intel Mac. The other option is Apple’s dual-boot system called Boot Camp. The primary advantage to virtualization is that a user doesn’t have to leave the Mac OS X environment or restart the computer to run Windows because it is in a virtual environment within Mac OS X. Virtualization also offers support for a much wider range of Windows versions as well as other operating systems.
One major point in favor of Boot Camp is that the end-user license agreements for Windows Vista restrict its use in virtualized environments. This means that users wishing to run Vista with either Parallels or Fusion will need to purchase the more expensive Business or Ultimate editions of Vista. Even when using those, Microsoft forbids use of the digital rights management technologies that are built into Windows and recommends against the use of third-party DRM products as well.
This means that users should consider carefully whether or not to purchase Vista for use with virtualization products. The better option might be Boot Camp if Vista is being used for access to protected content from services not available for Mac OS X.
Under the hood, there are some serious differences between dual-booting and virtualized solutions. When a Mac boots into Windows using Boot Camp, it essentially is a Windows PC. When virtualization is used, Windows does not have direct access to most of the Mac’s hardware. Virtualization uses a feature of Intel processors to essentially partition the processor into virtual processors and then gives the primary operating system and each guest operating system access to these processors. It also relies on a mix of genuine and virtual hardware to complete the creation of a virtual machine onto which Windows and applications are installed and run.
Ryan Faas is a freelance writer and technology consultant specializing in Mac and multiplatform network issues. In addition to writing for Computerworld, he is a frequent contributor to InformIT.com. Ryan is also the co-author of Essential Mac OS X Panther Server Administration (O’Reilly Media, 2005). You can find more information about Ryan, his consulting services and recently published work at www.ryanfaas.com, and you can e-mail him at ryan@ryanfaas.com.

This story, 'Mac virtualization: VMware vs. Parallels' was originally published by Computerworld.
If you need to run Windows inside OS X, you have three options: VirtualBox, VMware, and Parallels. Each has their own strengths and weaknesses, and different use cases where one’s better than another. Let’s break down when each is best and for what.
The Contenders
Virtual machines allow you to run operating systems like Windows inside of OS X, alongside your normal Mac setup. Once you set up a virtual machine, you install the operating system you want and you can use it right from your Mac desktop, no rebooting necessary. There are three popular options for doing this:
- VirtualBox (Free): VirtualBox is easily the nerdiest of the three options we’re comparing here. It’s packed with all sorts of customization options for your virtual machines, but doesn’t have any fancy integration features like Parallels and VMware. Essentially, VirtualBox allows you to create a virtual machine that’ll run Windows, and that’s about it.
- VMware Fusion($79.99 for unlimited Macs): VMware Fusion walks the line between Parallels and VirtualBox, offering up a ton of options for tweaking your virtual machine, but still providing plenty of hand-holding for the initial setup process.
- Parallels($79.99 for one Mac): VMware Fusion and Parallels are very similar, but Parallels guides you through the installation process more closely. It also focuses on home users, who simply need an easy way to use Windows on their Mac without rebooting or getting another computer.
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We’d be remiss here not to also mention Boot Camp, which runs Windows on a separate partition of your hard drive. Unlike virtual machines, Boot Camp requires rebooting your computer, and you can’t use both operating systems at the same time. It’s a bit less convenient, but it means your Windows installation can take full advantage of your Mac’s hardware, giving you better performance. We won’t be including it in today’s showdown—which is specifically about the different virtualization options out there—but it’s worth mentioning as an option for running Windows on a Mac.
Now let’s dig into some of the specifics of each.
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Ease of Setup
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Virtual machines aren’t like other apps. Setup goes beyond just installing the app, so the ease of the process is pretty important.
Let’s start with VirtualBox, since it’s the most hands-on of the bunch. You start by creating a virtual machine and selecting the operating system you plan to run (Windows, Linux, etc). From there, you’ll need to tweak a bunch of system settings, including how many processor cores the virtual machine gets, how much memory and video memory it gets from the total installed in your system. Thankfully, we have a guide to help you through the whole process. Once you have all of that configured, you’ll install the operating system just like you would on any computer. That means you’ll need an installation disc, USB drive, or ISO file to install from.
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Both VMware and Parallels have setup wizards that guide you through the process a little more. Beyond simply installing a virtual machine, both allow you to import your Boot Camp partition if you have one, or migrate an old Windows PC to your Mac. Parallels (pictured above) guides you through the installation process a lot more, and you’ll get the option to automatically optimize Parallels for productivity or gaming. Of course, you always can move past that screen and install Windows from scratch if you prefer.

They’re all simple, though Parallels has a bit of an advantage for new users since it holds your hand throughout the process. In terms of user friendliness, Parallels was consistently the strongest of the three we tested. That makes it a great solution for anyone not interested in screwing around with settings.
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While each of these three programs do fundamentally the same thing, a handful of small features set them apart from one another.
All three apps feature some type of windowed mode support (see image above). This allows you to run a single Windows application in its own window on your Mac desktop, so it feels a little more like a native Mac app. VMware calls this Unity, Parallels calls this Coherence, and VirtualBox calls it Seamless Mode. When an app is in windowed mode, you can copy and paste information between Windows and Mac apps, move and resize them, and close an app without shutting down Windows.
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Parallels and VMware both allow you to open up individual Windows programs directly from the Dock, which makes the whole process very easy. VirtualBox doesn’t support this feature, instead requiring you to open up the whole virtual machine to pick our your app of choice.
The similarities don’t stop there. If you’re running Windows 10, Parallels and VMware both give you access to Cortana to issue voice commands, even if Windows isn’t in focus. They also both support DirectX 10, which means they can run most games, though good performance isn’t guaranteed (more on that in the next section). VirtualBox doesn’t support any cool little tricks like this. Instead, it merely performs the simple task of running Windows as a whole.
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The feature differences between the Parallels and VMware are pretty subtle. For example, Parallels supports OS X’s Quick Look feature in Windows, while VMware doesn’t. Conversely, if you happen to have a fancy new iMac, VMware supports 5K monitors natively. Most of this stuff is pretty minor though, and honestly if you stripped away the logos, I’d have a hard time telling a difference between the two.
If you want a full comparison of everything in VMware Fusion and Parallels, Wikipedia has a handy chart that’s worth a look, though it’s not completely up-to-date.
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Since virtual machines have to share resources with the host OS, performance is very important. Thankfully, TekRevue has benchmarked all three programs for a variety of tasks. The current version of VMware outperforms the others in nearly every category, while VirtualBox is way behind its competitors. Of course, there’s more to it than just that.
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Parallels Vs Vm Fusion
In 18 different tests, VMware took top honors in 11, most notably in the graphics benchmarks. Performance margins were typically pretty close and as a whole, Parallels tends to do best in CPU-related tests where VMware does best in graphics-related tests.
The general trend of CPU versus graphics runs throughout their tests. Parallels tends to boot faster than VMware, transfer files faster, and saves battery life better than VMware. In turn, VMware benchmarks much higher for 3D graphics and for gaming, especially with OpenGL. VirtualBox consistently lags behind in both CPU and 3D performance.
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The Verdict: VirtualBox for a Free, Bare-Bones Experience. VMware or Parallels for an Easy-to-Use, More Integrated One
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If you just need Windows to run that one old app that doesn’t require a ton of 3D rendering or other complicated processing, VirtualBox is what you want. Beyond that, feature-wise, the two paid options are very similar, and the difference is mainly price and how many Macs you need to install on. If you’re planning on running anything in 3D or want to install Windows on more than one Mac, then go with VMware. If you’re more interested in productivity software and battery life, and don’t mind the one Mac restriction, then Parallels is your best bet.
All of this changes from year to year, too. Parallels and VMware both require that you buy an annual license every year to get updates that pack in performance gains and feature improvements. These annual updates are great in theory, but they’re not cheap, and they come every year without fail. This is a bit tiresome, especially when they lock out newer versions of Windows behind those paid upgrades. Provided you don’t need to be on the cutting edge, they’re usually pretty incremental, though, and you’re okay skipping one or two—as long as a new version of Windows doesn’t come out.
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Windows Vm For Mac
Regardless, the good news here is that while VirtualBox is free, even VMware Fusion and Parallels have trial periods so you can check them all out. We definitely recommend doing so before you drop the cash. You don’t have to try out all three options, but if your needs are pretty limited, start with VirtualBox before considering VMware or Parallels.