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There are benchmarks comparing vanilla React to other frameworks: http://facebook.github.io/react/blog/#todomvc-benchmarks

At least according to this data, React and Backbone are the fastest. (Om is faster than vanilla React)

One suspects that with hand-optimization the other frameworks could be a lot faster, but the point of this post is that it is fast without hand-optimizations.

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Keep in mind that those benchmarks don't use the requestAnimationFrame() batching strategy (out-of-the-box it's not installed since it makes testing harder since you have to wait for the next frame) like swannodette mentions.

I'd be interested to see these numbers after doing `npm install react-raf-batching` and doing `require('react-raf-batching').install()`.

In general "faster without optimization" is completely meaningless because it doesn't mean fast with optimization, which is what actually matters.

Example: Average code written in node.js is typically just as slow as, say, PHP (in fact node.js was 3x slower than php in techempower benchmarks). However, it has potential to be much faster when optimized whereas PHP doesn't reward such optimization almost at all.

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