Original Post on Medium: Headless Chrome vs PhantomJS Benchmark
Prerequisites: You'll need Ruby (> 2.0), last version of PhantomJS (> 2.1.1) and last version of Chrome (> 60.0).
Then clone this repository, install the dependencies, and run the benchmarks:
git clone git@github.com:hartator/benchmark-headless-chrome-vs-phantomjs.git
cd benchmark-headless-chrome-vs-phantomjs
bundle install
rails test:system SAMPLE_COUNT=100 BROWSER=phantomjs
rails test:system SAMPLE_COUNT=100 BROWSER=headless_chrome