If you don't like the Google Chrome Prefetch feature you can actually disable it. The Google Chrome Prefetch features allow you to load webpages faster then other web browser because it basically prepare all the pages that you might click on next. How it does is this, it basically go through the content of a webpage then looking for a link references to other pages. It then try to resolve the domain DNS (web address) ahead. So when you click on a link on the page it no longer need to try to resolve the DNS but instead it can just load up the page.
If you think this feature load up all the unnecessary data and consume your bandwidth you can just disable it. Here's how:
2. Click on Options.
3. Click the Under the hood tab.
4. Now Uncheck Use DNS pre-fetching option.