Balanced - This test is balanced between different areas of the language and different types of code. It's not all math, all string processing, or all timing simple loops. In addition to having tests in many categories, the individual tests were balanced to take similar amounts of time on currently shipping versions of popular browsers.
Statistically Sound - One of the challenges of benchmarking is knowing how much noise you have in your measurements. This benchmark runs each test multiple times and determines an error range (technically, a 95% confidence interval). In addition, in comparison mode it tells you if you have enough data to determine if the difference is statistically significant.
We're still building up reference data for the newest version of SunSpider, so we ran both v0.9.1 and v1.0.2 here. The Note Edge held its own in both tests, vying for the top spot in both and competing favorably with the most well-specced phones on the market right now.
Rightware recently updated the BrowserMark benchmark to version 2.1, so we're just starting to compile scores using the new edition--scored with v2.1 aren't comparable to v2.0. The Note Edge outpaced a number of flagships from the past 6 to 18 months, including the LG G2 and Galaxy S 4. We'll be interested to see how the Note Edge stacks up against high-end Android phones that make their debut here in a few weeks at CES and MWC.