The great Firefox 2 vs. IE 7 memory test

OK, so here’s what I just did. I opened TechMeme up, and Ctrl-clicked on every link on the main part of TechMeme. That opened every link up into a tab. Then I went to Windows Task Manager and looked at how much memory each took.

Firefox 2: 249,996 K
IE 7: I couldn’t complete the tasks, but after loading only about half of the links iexplore was taking 295,800K.

Firefox 2 was much faster on my machine to open up all the tabs and get me back surfing. In fact, on my little Lenovo X41 Tablet PC, I couldn’t complete opening all of the links using IE7. IE was just getting slower and slower.

Now, this isn’t matching what other people are seeing. Lifehacker says that IE 7′s memory utilization is much lower than Firefox’s. Which tells me something must be messed up on my machine and/or something else is getting loaded on my IE7 machine.

What are you seeing?

126 thoughts on “The great Firefox 2 vs. IE 7 memory test

  1. Try it with Vista on 4gb of ram.

    At the moment I’m looking at IE7 in taskmanager. The figure is 975,420K. That’s a Gb folks.

    I have a total of 5 tabs open. None of them are web 2.0 stuff particularly. Just forums oh and stumbleupon.

    I’ll try firefox later on, though I recall it being about 200mb.

    Any cure?

  2. Try it with Vista on 4gb of ram.

    At the moment I’m looking at IE7 in taskmanager. The figure is 975,420K. That’s a Gb folks.

    I have a total of 5 tabs open. None of them are web 2.0 stuff particularly. Just forums oh and stumbleupon.

    I’ll try firefox later on, though I recall it being about 200mb.

    Any cure?

  3. Not sure about IE7 but IE6 seems to suck far more memory than the ‘Fox on what I thought would be an IE-friendly site (live.com) I blogged to this effect (http://turangal.blogspot.com/) and took the liberty to link with your blog. After I did so, I realised IE will suck a lot less when one cuts of what they call “binary behaviours” (most people use these for transparency [DXTrans:alpha] the ‘Fox supports this natively through Opacity). Is your experience any better if you disable CraptiveX’s and Binary Behaviours?

  4. Not sure about IE7 but IE6 seems to suck far more memory than the ‘Fox on what I thought would be an IE-friendly site (live.com) I blogged to this effect (http://turangal.blogspot.com/) and took the liberty to link with your blog. After I did so, I realised IE will suck a lot less when one cuts of what they call “binary behaviours” (most people use these for transparency [DXTrans:alpha] the ‘Fox supports this natively through Opacity). Is your experience any better if you disable CraptiveX’s and Binary Behaviours?

  5. I have used IE7 and FF2 in Vista. FF2 consume more memory than IE7 (may be because of plug in). However, FF2 is faster than IE7 and has more features than IE7 after the plug in. At first I consider how much memory they use. I don’t care about this anymore when the one which consume more memory actually work faster. Even they are pretty much the same sometimes FF2 still has more features that I cannot find in IE7.

  6. I have used IE7 and FF2 in Vista. FF2 consume more memory than IE7 (may be because of plug in). However, FF2 is faster than IE7 and has more features than IE7 after the plug in. At first I consider how much memory they use. I don’t care about this anymore when the one which consume more memory actually work faster. Even they are pretty much the same sometimes FF2 still has more features that I cannot find in IE7.

  7. We have all been fooled again by Redmond. IE 7s memory usage is by far greater than that of FireFoxs. I know what your thinking you check out both the program names under taskmanager and firefox is showing to be using more memory right… Well thats where we have been fooled IE 7 mask some of its memory usage under svhost.exe. Firefox doesn’t pay attention to the commit charge and load them both see what happens… Load Firefox first IE 7 doesn’t clear the memory in svhost.exe on exit.

  8. We have all been fooled again by Redmond. IE 7s memory usage is by far greater than that of FireFoxs. I know what your thinking you check out both the program names under taskmanager and firefox is showing to be using more memory right… Well thats where we have been fooled IE 7 mask some of its memory usage under svhost.exe. Firefox doesn’t pay attention to the commit charge and load them both see what happens… Load Firefox first IE 7 doesn’t clear the memory in svhost.exe on exit.

  9. Everyone should try Opera IMHO.
    I think it is even better than firefox when dealing with dozens of tabs! Responsive instantly! Firefox is good as well, but i usually end up overloading it with plugins to do my job.
    IE drains all my system’s resources and i cannot open a window after some hours.even when i close many tabs, ie still holds 150MB+

  10. Everyone should try Opera IMHO.
    I think it is even better than firefox when dealing with dozens of tabs! Responsive instantly! Firefox is good as well, but i usually end up overloading it with plugins to do my job.
    IE drains all my system’s resources and i cannot open a window after some hours.even when i close many tabs, ie still holds 150MB+

  11. I am getting sick of IE7. My browser closes for no apparent reason. I am not the only person having this problem either. I have switched to FF 1.5. I haven’t downloaded FF 2 because I heard many plugins do not work properly. IE 7 has gone in a new direction than previous versions. It may look the same, but they have drastically changed the way it works, which means new bugs as well. Unfortunately, MS has a bad habit of releasing software before it is ready. In response to question above, the reason why FF has such a small market share is because it doesn’t ship with Windows, not because there is anything wrong with it. Most people don’t even know how to download a different browser.

    I agree that IE and FF are not concerned with memory consumption. In short, they should be. Before IE’s tabbed environment I opened up several windows (with alt-tab, I really didn’t have a problem with this). I didn’t use up half as much memory as I do now. Why does a tabbed environment on IE7 make it run so much worst than IE6. The solution of “just add more memory” just sucks. Why should I upgrade (or buy a new computer in some cases) just to be able to do what I did last year? My computer shouldn’t slow down just because I have 7 or 8 webpages open. What’s the problem? I’m sick of companies releasing code as quickly as possible and leaving it to hardware upgrades to make it usable. It’s like a car manufacturer blaming gasoline for not giving it better mileage. BUILD A BETTER ENGINE!!!

    By the way moron (aka DJB), partial source in IE doesn’t give exact HTML either.

    For people who want to turn this into an MS versus open-source debate, do it elsewhere please. I work

    in computers. I love MS because it’s easy and it makes me money. I love Linux because it’s open and it makes me money. ;)

  12. I am getting sick of IE7. My browser closes for no apparent reason. I am not the only person having this problem either. I have switched to FF 1.5. I haven’t downloaded FF 2 because I heard many plugins do not work properly. IE 7 has gone in a new direction than previous versions. It may look the same, but they have drastically changed the way it works, which means new bugs as well. Unfortunately, MS has a bad habit of releasing software before it is ready. In response to question above, the reason why FF has such a small market share is because it doesn’t ship with Windows, not because there is anything wrong with it. Most people don’t even know how to download a different browser.

    I agree that IE and FF are not concerned with memory consumption. In short, they should be. Before IE’s tabbed environment I opened up several windows (with alt-tab, I really didn’t have a problem with this). I didn’t use up half as much memory as I do now. Why does a tabbed environment on IE7 make it run so much worst than IE6. The solution of “just add more memory” just sucks. Why should I upgrade (or buy a new computer in some cases) just to be able to do what I did last year? My computer shouldn’t slow down just because I have 7 or 8 webpages open. What’s the problem? I’m sick of companies releasing code as quickly as possible and leaving it to hardware upgrades to make it usable. It’s like a car manufacturer blaming gasoline for not giving it better mileage. BUILD A BETTER ENGINE!!!

    By the way moron (aka DJB), partial source in IE doesn’t give exact HTML either.

    For people who want to turn this into an MS versus open-source debate, do it elsewhere please. I work

    in computers. I love MS because it’s easy and it makes me money. I love Linux because it’s open and it makes me money. ;)

  13. On my toshiba m200 tablet w/ vista keeping memory usage down is a must.

    A> Ie7 used an average of 50-70 mb’s ram with under 10 tabs open. Firefox would use over 100 mb’s ram with the same amount of windows open, and if they were left open for several hours (which is ALWAYS the case) then the memory would climb to 200-300 mb. Closing all but a few tabs would no cause firefox to release the memory, only periodically restarting the program could start at 100 again.

    B> So i switched to ie7, but when 10 tabs are open, scrolling is horrifically slow, especially on long pages. Ie7 can’t seem to be able to handle more than 10 tabs without slowing to a crawl.

    Conclusion> buy more ram. Memory usage on firefox sucks, but the speed blows away ie7.

  14. On my toshiba m200 tablet w/ vista keeping memory usage down is a must.

    A> Ie7 used an average of 50-70 mb’s ram with under 10 tabs open. Firefox would use over 100 mb’s ram with the same amount of windows open, and if they were left open for several hours (which is ALWAYS the case) then the memory would climb to 200-300 mb. Closing all but a few tabs would no cause firefox to release the memory, only periodically restarting the program could start at 100 again.

    B> So i switched to ie7, but when 10 tabs are open, scrolling is horrifically slow, especially on long pages. Ie7 can’t seem to be able to handle more than 10 tabs without slowing to a crawl.

    Conclusion> buy more ram. Memory usage on firefox sucks, but the speed blows away ie7.

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