The results of Wipedia says:
* Chromium is the open source project behind Google Chrome ...
* Google Chrome is a web browser developed by Google and compiled components based on open source ...
But we do most noticeable physical differences:
Google Chrome
Google Chrome is Chromium open source project built, packaged and distributed by Google. It has the following differences from Chromium:
* Colored Logo
* Error Reporting Option
* Option metry users
* Support for H.264, AAC, MP3, Vorbis and Theora with audio and video labels.
* Sandbox
* A single package deb / rpm
* The files of the profiles are stored in ~ / .config / google-chrome
The compilation of development channel is updated about once a week, after passing the test a few test machines and quality assurance manuals.
Chromium
* Blue Logo
* Support to Vorbis and Theora video and audio tags
* The process isolation is optional, depending on the package maintainer
* Packages depend on the distribution, sometimes split into multiple parts.
* The profile files are stored in ~ / .config / chromium
What do you prefer?