title: translate3d vs translate performance
body: <p>We now all know, particularly from <a href="http://www.paulirish.com/2012/why-moving-elements-with-translate-is-better-than-posabs-topleft/" rel="noreferrer">that nice article</a>, that we should prefer css-transforms to animate position.</p>
  
  <p>But we got the choice between <code>translate()</code> and <code>translate3d()</code>...</p>
  
  <p>Which one is <em>generally</em> faster?</p>