The message is the same. Here's an example: "This is Google's cache of http://en.wikipedia.org/wiki/Test. It is a snapshot of the page as it appeared on Jun 17, 2015 19:01:59 GMT. The current page could have changed in the meantime."
Google lets you switch between:
* the "full version", which is displayed by default
* the "text-only version", which doesn't load images, scripts and other resources
* the page source - a new feature that shows the source code of the HTML page.
Google adds the following URL parameter to show the HTML code: vwsrc=1. Example: http://webcache.googleusercontent.com/search?q=cache:dxrXMu4BMrYJ:en.wikipedia.org/wiki/Test&hl=en&gl=us&strip=0&vwsrc=1.
Here's a screenshot of the old Google Cache. It's a screenshot from 2013, back when Google still highlighted search terms.