Browser performance comparison - JavaScript Benchmarks

Windows 10 October 2018 Update

Methodology summary

The Microsoft Edge team ran the Apple Jetstream 1.1 benchmark on the latest versions of Microsoft Edge, Google Chrome, and Mozilla Firefox as of 9/27/2018: Microsoft Edge 18.17763, Google Chrome 69.0.3497.100, and Mozilla Firefox 62.0.2.

For all three browsers, the test was performed on the same desktop PC running Windows 10 October 2018 Update (build 17763) and connected to the Internet through Ethernet.


Microsoft Edge scored 37% faster than Google Chrome and 24% faster than Mozilla Firefox according to the Apple Jetstream 1.1 benchmark.

According to the Apple Jetstream 1.1 benchmark, Google Chrome scored 27% slower than Microsoft Edge and Mozilla Firefox scored 19% slower than Microsoft Edge.

Jetstream 1.1 score
Firefox 62 (64-bit) 140.44
Chrome 69 (64-bit) 127.28
Microsoft Edge 18 (64-bit) 173.78

Methodology details

Computer setup

The test was performed on a desktop PC running the Windows 10 April 2018 Update (build 17763). All tests were initiated manually on identical remote machines in a test lab (OptiPlex 7010 with Intel(R) Core(TM) i5-3475S CPU @ 2.90GHz (4 CPUs), ~2.9GHz and 4GB RAM) with no other applications running. Power and internet cables were connected during the tests. Each test was run three times in each browser, with the median score reported above.

OS and browser versions

OS Windows 10 Enterprise 17763
Microsoft Edge Microsoft EdgeHTML 18.17763
Chrome Google Chrome 69.0.3497.100 (64-bit)
Firefox Firefox 62.0.2 (64-bit)


Processor i5-3475S @ 2.90GHz (4 CPUs)
Memory 4GB