Does disabling Aero really improve performance in Windows 7?

Speed Up My PC

Windows Aero, acronym for Authentic, Energetic, Reflective, Open, is the graphical user interface, the module of Windows that processes the GUI and the default theme in most editions of Windows Vista and Windows 7, operating systems released by Microsoft.

On many blogs and forums you may get to read a tip on how to improve performance!  If you disable Aero interface, it will improve the performance of your Windows 7 & Vista operating system! Does it really improve performance or is it a myth?

Now it is very important to understand one thing! The Aero interface is rendered by the graphics card in your computer. The UI is offloaded on to the graphics card!

But if you switch to the non-Aero viz Classic theme, then the UI is offloaded to and handled by your computer’s main processor! This may in fact put more load your main processor and have the opposite effect; although on today’s modern computer’s, the difference will be imperceptible, really!

Even if you have an integrated graphics, you may not see any real difference in performance!

In study commissioned by Microsoft during Vista days, it was found that:

Windows Vista Aero had little effect on the responsiveness of Windows Vista. Over 95% of the response-time differences between tests ran with or without Aero were under a 10th of a second and that all of the difference was under 1 second.

You should therefore not disable Aero, expecting a boost in Windows performance. Sure, if you wish to prolong battery, go ahead and disable Aero. But if you indeed wish to boost performance, you may want to  consider disabling transparency and special effects instead!

Says Lee Whittington:

If you are looking to prolong battery life, then you may want to disable Aero.

I did the test with:

  • Aero and Transparency On
  • Aero and Transparency Off
  • Aero Off

There was only maybe at the most a 10 minute difference in between each Theme I chose.

I had IE running the same thing during each test along with a couple of other programs in the background. I really didn’t see any change in how it drained the battery for each test.

The only major change I saw was if I switched my Power Scheme to High Performance with a few tweaked settings. I lost 2 and a half hours of battery life!

However Shyam Sasindran has a slightly different view point:

Disabling Aero could improve the performance because the dwm.exe (Desktop Windows Manager) takes up 28-58000k memory usage. When we disable Aero i.e go back to classic mode, you will find a performance difference. Not huge though! Because it releases 58K of your Memory space. And the animation that gets disabled when we disable Aero will impact in loading Menus faster.

Again Aero is a feature for powerful machine and not for a  Computer that just touches minimum requirements. Not all GPU card supports Aero. The software that I support at my Office i.e. Sage ACT!, when Aero is enabled on a slow machine, it take 15 to 20 seconds to open. But when we disable Aero and other animations (i.e. the one that we can find under “System Properties | Advance settings | Advance Tab | Visual effects | Adjust for best performance) it take 5 to 10 seconds to load the program. This is on a slow PC i.e. 1 GB RAM etc.

This is my view about this topic. This is purely based on my experience on PC not theoretically written anywhere.

What do you think!? Your comments? Observations? Experience?

Posted by on , in Category Windows with Tags
Anand aka HappyAndyK is an end-user Windows enthusiast, a Microsoft MVP in Windows Desktop Experience since 2007, and the Admin of TheWindowsClub.com, TheGeeksClub.com & WinVistaClub.com. Creating a System Restore Point before trying out a new software or a tweak is always recommended.
  • Phong

    lol @ 58k resulting in a noticeable performance improvement…

  • http://www.thewindowsclub.com/about Windows Club

    ^The typo has been corrected.

  • http://www.thewindowsclub.com/about-twc-contributor-shyam-sasindran ShyamS@TWC

    Sorry about the typo

  • Christian K

    Disabling Aero (Desktop Window Manager Session Manager Service) eliminated an audio dropout I was having when running the DJ program Traktor (from native instruments). The audio would drop out when I minimized the program.

    Disabled Aero, & problem gone.

  • http://www.yashmaheshwari.com Yash Maheshwari

    Andy, Can you enable Facebook Recommend plugin to allow one click sharing with FB friends? I prefer that to this sharing of entire post with info etc.

  • http://www.thewindowsclub.com/about Windows Club

    Hi Yash, Isn’t the ‘Sharing is Caring’ plugin good enough? Or do you prefer the basic Facebook Like and Twitter Tweet buttons?

  • Apolyonn

    On the AMD C-50 processor/RadeonHD 6300 series (popular in nettops/newer netbooks) turning off Aero results in slightly slower response time when closing/minimizing/dragging windows. I’m a fan of the windows classic themes, but they actually put more strain on the computer, resulting in more heat – I’m guessing this is due to the dual-core 1ghz (a whopping max of 2ghz) processor. I’m currently running Aero with bare-minimum performance settings: thumbnails, shadows, smooth screen fonts. It’s relented on the heat output significantly and the battery life doesn’t seem to suffer much more than with my classic theme.

    In short, if you manage Aero correctly, it can work to your advantage in terms of power-saving and battery life.

  • Apolyonn

    On the AMD C-50 processor/RadeonHD 6300 series (popular in nettops/newer netbooks) turning off Aero results in slightly slower response time when closing/minimizing/dragging windows. I’m a fan of the windows classic themes, but they actually put more strain on the computer, resulting in more heat – I’m guessing this is due to the dual-core 1ghz (a whopping max of 2ghz) processor. I’m currently running Aero with bare-minimum performance settings: thumbnails, shadows, smooth screen fonts. It’s relented on the heat output significantly and the battery life doesn’t seem to suffer much more than with my classic theme.

    In short, if you manage Aero correctly, it can work to your advantage in terms of power-saving and battery life.

  • http://twitter.com/Dave_BG Dave Bg

    On a normal modern PC – NO, Aero has no impact yet it has feature to auto disable itself. Typical M$ bull… I want to decide for myself if i want it on or OFF not some stupid pop-up!