CPU Benchmarks

We’ll start our short look at Ubuntu’s performance with our CPU intensive benchmarks. Up first is SuperPi, a single-threaded pi-calculating benchmark. Here we time how long it takes to calculate Pi to 1 million digits.

We ran this test several times more than usual just to make sure we weren’t seeing any kind of error. The Linux version of SuperPi really is about 30% faster than the Vista version. Keep this in mind, this will be an important point later.

Meanwhile the situation for LAME is inverted. Vista outscores the Linux version by nearly 20%.

Using the cross-platform X264-based Handbreak for our video encoding test, Vista once again pulls ahead of Linux.

Once more Vista is ahead by a large margin.

From what we can tell, there’s little-if-any innate performance advantage to Vista or Linux in these benchmarks. Our working theory is that the performance difference comes down to the compiler used. Many Linux applications are compiled with GCC, while for Windows it’s either the Visual Studio compiler, or Intel’s own compiler (which is also available for Linux). There’s also a matter of compiler settings, as we saw in our quick breakout of Firefox benchmarks.

Meanwhile SuperPi uses a lot of hand-rolled code, although we’re still not sure why it’s outperforming Vista on Linux by as much as it is.

To shed a little more light on this idea of compiler performance, we have a few benchmarks of Windows application performance under Ubuntu through Wine.

Here we see a most amazing thing: Ubuntu is outperforming Windows at running Windows applications! As we’ve removed the influence of compilers the Photoshop results are particularly interesting. From what we can tell it’s normally as fast under Linux as it is Vista, however there seems to be a short gap of low-CPU usage when running it under Vista that doesn’t occur when running it under Ubuntu. As a result Ubuntu finishes a few seconds earlier.

There are a number of conditional cases that mean that applications running under Wine don’t always match or beat Windows performance, but in our tests there’s no performance hit to using Wine to run Windows applications.

These results also lend a great deal of support to the idea that there’s a significant difference in performance between the two operating systems due to their compilers. This goes particularly for the LAME benchmark, where the performance gap melts away under Wine. This is something we’re going to have to look in to in the future.

Test Setup Browser & Video Benchmarks
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  • Telkwa - Wednesday, August 26, 2009 - link

    Nobody's going to agree with the entire article. I'm just glad to see Anandtech paying some attention, and would welcome any articles, tests, reviews, etc.
    It's embarrassing to visit the "Linux" tab and see the latest article was posted in July of 2005...
  • Geraldo8022 - Wednesday, August 26, 2009 - link

    This is based on Ubuntu and I installed it this past weekend. I am having certain issues with it. Yes, it is free. Overall I like it very much and am pleasantly surprised. But, this has shown that Windows 7 will be a comparative bargain to me. I do not have the time to sit in front of the computer and play with Linux; trying to find out why certain videos don't play and why I am having eye strain and clicking on an audio link that doesn't play and a few more. When I go to the Mint forums I am confronted with a Tower of Babel what with all of the acronyms, and told to go to the terminal and type $surun%(8#**#. Ok, now turn your head and cough.
    I'll keep Linux on this machine to boot up and play with now and then. It beats solitaire for the time being.
  • VooDooAddict - Friday, August 28, 2009 - link

    You hit on a good point. People I've setup with dual booting linux distros and windows begin to appreciate what they are paying for with windows. Typical response is "This is cool (Ubuntu) and I can see why some people like it. But I'm going to stick with windows, it's worth the money to me."

    They appreciate that Linux could work, but see the "value" in paying form something familiar.
  • VooDooAddict - Friday, August 28, 2009 - link

    I run Vista on my main PC. Vista on all the spare LAN gaming PCs. I have an Ubuntu 9.04 VM and Ubuntu Netbook Edition on my old tablet PC (small and netbook like).
  • Locutus465 - Wednesday, August 26, 2009 - link

    Just out of curiosity what user mode were you having guests run in? Even in vista I don't provide anything greater than standard user. With that guests need my password (which they don't have) to mess my machine up. Going back as far as Windows 2000, as long as you pair Windows with good spyware (spybot, or for XP defender if you choose) and antivirus (I like Avast and AVG both free and have nil footprints) you basically don't have to worry about system security as long as the person is running a standard user account.

    My my parents system, we went from having to wipe and reinstall windows every time I came home from college, to a rock solid system that absoultly never failed when I performed these steps. I still like the XP/2000 behaviour of simply denying access better than the current UAC implementation. But Vista 64 + UAC (active) seems to be secure enough, particularly when paired with the aformentioned anti-virus software.
  • Ryan Smith - Wednesday, August 26, 2009 - link

    For what it's worth, it's an admin account. I know, I know, I could do Limited User. But that tends to just elicit complaints. XP's Limited User mode is embarrassing compared to how well Vista/Win7 does it.

    Since it's basically just a web browsing laptop anyhow, it's basically a perfect fit for Ubuntu since I wouldn't need to be concerned with Windows malware period.
  • leexgx - Wednesday, August 26, 2009 - link

    i have to agree even XP in its standered/limited user account mode quite hard for stuff to install but not imposable (Vista and win7 with UAC on and an standered account with the admin account passworded should prevent the system from been messed up)
  • aguilpa1 - Wednesday, August 26, 2009 - link

    It seems the OS does not like core 2 duos and nvidia 9800GTX graphics, something even OSX was able to handle.
  • samspqr - Wednesday, August 26, 2009 - link

    * for me, the best possible way to install applications on any OS, but specially in one that is free (libre) is as follows: you search on the internet for the best program to meet your needs, you find it, you copy some code that identifies it, and paste that in your package manager, which then connects to some database, checks that the program is not malware, looks for the latest version, and proceeds to download and install it, not caring whether it's open source or not; this would beat windows/OSX by a wide margin, and also the current ubuntu system, whose "we don't like this software, on philosophical grounds, so it's going to be a pain in the ass for you to install it" attitude is a bit too problematic

    * it would be nice if the "auto" option in the installer told you what it's going to do with your hard disk before going on to do it; I never use it, out of fear it might try to do something I don't like

    * I missed some comment on that section on how Photoshop CS3 costs a lot of $$$, while GIMP is free

    * along these lines, the comparison of total costs in time and money of installing windows/OSX/ubuntu, with all their companion programs, is striking

  • samspqr - Wednesday, August 26, 2009 - link

    and about openoffice:

    * I didn't check this ltely, but aren't there still problems with VBA compatibility? if I can open my xls/xlsm files but I can't run my macros, it's no good; I have a ton of stuff written in VBA, and I'm definitely not doing all that work again

    * the ribbon UI in office 2007 is a royal pain: it's only good for the "It looks like you're writing a letter" users, and you can't get rid of it; there's a lot of people doing real work on excel, and none I talked to likes that ribbon thing, they'd all rather stay with excel 2003

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