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I've tested Chrome under Windows 7 x32 and x64 and virtual XP x32 on Windows 7 x64. It looks like Chrome + Windows 7 x64 is about 500ms slower than on other systems. Other browser like Firefox, Opera, Internet Explorer are on Windows 7 x64 faster.

It can be easily checked with browsers' default Developer tools, just check network response. Chrome + Windows 7 is always 500ms slower...

My question is simply why?

Is there something wrong with my configuration? Where and what?

Is it something with V8 JavaScript Engine, that to some improvements should be faster, but under Windows 7 x64 it runs under some compatibility mode 32-bit under 64-bit (?).

I've checked some internet hints like to change LAN option - useless.

Any suggestions?

EDIT

I've just tested switching off AntiVirus and Firewall - no difference.

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    Every page is 500ms to load? When you load the google home page, does it take 550ms?
    – Robert Martin
    Sep 7, 2011 at 12:53
  • Wondering the same thing, I did a reinstall of Windows and was going to use Chrome, but it appeared to load slow, so I installed Firefox and it turns out Chrome was slower. Same OS, Win7 64bit.
    – Nexerus
    Sep 7, 2011 at 12:54
  • Even more. Like I said - always some extra ms, at least 500ms
    – szamil
    Sep 7, 2011 at 12:54
  • Are the OSes FRESH instals, connected to the same network with the same NIC?
    – cutrightjm
    Apr 5, 2013 at 0:12
  • I installed clean Windows 8 x64 and problem persists. It has to be connected with x86 plugins incompatibility...
    – szamil
    Apr 6, 2013 at 19:39

2 Answers 2

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It's the extra x86 processes. Because Chrome is a 32-bit app, and because its design requires a new process for each tab, Chrome will always be slower on x86 architecture.

I recommend you test out Firefox Nightly 9.0 (alpha), which is in native x64. The only thing you'll have trouble getting to work is PDF reader, Flash works already.

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  • Chrome, as I know, is kind off open source project. Do you think I can build it myself as 64-bit app? Why there is no x64 version, as 64bit is so popular? Am I missing something? FireFox is not an option.
    – szamil
    Sep 7, 2011 at 15:37
  • I've just checked the option about building Chromium and give up, because it's 10GB and I'm not sure if it'd work... :(
    – szamil
    Sep 7, 2011 at 17:23
  • @szamil - How can Firefox not be an option if Chrome is?
    – Ramhound
    Sep 7, 2011 at 18:20
  • @szamil: x64 version of Chrome requires x64 plugins. It also requires extensive retesting. Kind of hard to recruit people to do this for very little gain.
    – surfasb
    Sep 8, 2011 at 1:43
  • Go with Firefox then. The 64-bit flash plugin works fine. You could probably find a PDF viewer as well
    – A T
    Sep 8, 2011 at 1:49
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The solution from Google Product Forums produced an improvement:

  • open Internet Explorer
  • go to Tools -> Internet Options
  • go to "Connections" tab
  • click on "LAN settings" button
  • uncheck "Automatically detect settings"

http://productforums.google.com/forum/#!topic/chrome/Qk-Nz6tmVek

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  • This is not the issue. :(
    – szamil
    Jul 30, 2012 at 15:05

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