[android-developers] Chrome for Android's Octane score is lower than Native browser of Android4.2，Why ？

The following are results of test between 3 browsers on Octane
Benchmark

NO Android Browser Chromium Chrome(18.0.1025469)
1 Octane Score 1411 1693 1077
2 Richards(Core language fetures) 2291 2277 2045
3 Deltablue(Core language fetures) 2446 2195 2398
4 Crypto(Bit & Math operations) 2598 2667 2693
5 Raytrace(Core language fetures) 2069 2170 1640
6 EarleyBoyer(Memory & GC) 2932 3338 3448
7 Regexp(Strings & arrays) 415 506 451
8 Splay(Memory & GC) 740 537 705
9 NavierStokes(Strings & arrays) 1309 2169 400
10 pdf.js(Strings & arrays) 1243 1964 1194
11 Mandreel(Virtual machine) 1491 1956 665
12 GB Emulator(Virtual machine) 1859 2122 1032
13 CodeLoad(Loading & Parsing) 1128 1872 950
14 Box2DWeb(Bit & Math operations) 634 1083 352

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