Read from the orginal source[1]. They do their laptop tests with default browser, Safari, and got those highly variable results. They then did tests with Chrome

Read from the orginal source[1]. They do their laptop tests with default browser, Safari, and got those highly variable results. They then did tests with Chrome and got more consistent results (but still lower than Apple's promised estimates) [1] http://www.consumerreports.org/laptops/macbook-pros-fail-to-earn-consumer-reports-recommendation/ http://www.consumerreports.org/laptops/macbook-pros-fail-to-...