Git vs SVN: Performance and Storage

I want to use one of Git or SVN (Subversion) as a backup system. The only important thing for me is the Storage and Performance of the system. I searched around and most of the results I found were comparing them for features related to source control such as branching, local repositories, etc. However, as I mentioned, I am NOT looking for such features.

In short, I want to know:

Which one is more efficient for storage (takes less space)
Which one is more reliable (if there is a crash when pushing/committing, which one handles errors better)
Which one does things faster
Which one can handle large-scale repositories better (if too many revisions submitted, which would perform better)
...

I would appreciate if there were some facts (experiments) added to the comparisons. I'm looking for solid evidence.

Solution

Go for git, there is just no competition:

it is much more secure (all commits are uniquely hashed),
it is much more compact (the entire Linux kernel history from the last 5 years takes less than 1 GB on my machine),
it is so much faster it is not even funny,
it is easily replicated since it is decentralized.

Of course, using git is vastly differently to SVN. But tutorials also are aplenty.

Here is a link comparing git and svn performance in a few selected scenarios.