Earlier we covered the 64 bit Google chrome on the developer and Canary channels Google Chrome goes 64 Bit with the latest Canary and Developer versions. Now Google released the stable edition of chrome.
If you are using a 64 bit Windows 8 or Windows 7, you can now download the 64 bit version of chrome from their website google.com/chrome. The 64 bit version claims to be more powerful and effient than its 32 bit counterpart while it will be missing the 32-bit NPAPI plugin support.
Here is the direct download link for the 64 bit version of chrome for Windows users https://www.google.com/chrome/browser/?platform=win64
You can read more about it here
The version string of the 64bit edition shows as unknown
The new version includes many security and stability fixes. If you are using the 32/64 bit version of this browser we recommend you to upgrade your browser for better stability.
As this is the first 64 bit version of Chrome , you may expect some issues even it is on the stable channel. you can read the known issues of the product here