Leaked by Videocardz.com, the benchmark results include 3DMark 11 Performance and Extreme as well as 3DMark FireStrike Performance, Extreme and Ultra benchmark preset scores on reference clocks as well as 3DMark FireStrike results when the GTX 1080 is overclocked to an impressive GPU clock of 2114MHz. The 2114MHz GPU clock is actually 381MHz higher than reference 1733MHz Boost GPU clock, which is certainly a great result and suggest that we will see some high factory-overclock versions from Nvidia AiB partners at Computex 2016 show.
According to the details provided by the source, the tested GTX 1080 had a boost clock of somewhere around 1860 to 1886MHz. Under reference clocks, the GTX 1080 is about 21 percent faster than the GTX Titan X and about 27 percent faster than AMD's flagship Fury X graphics card. When overclocked, the GTX 1080 raises that lead by additional 24 percent.
Of coruse, these are just a first leaked benchmark results so take them with a grain of salt as official reviews are just around the corner.