This is also JSC vs V8 (and V8's x86 backend is very mature and well optimized; JSC's ARMv7 backend is pretty good, but nobody's ARM backend has had the same ti

This is also JSC vs V8 (and V8's x86 backend is very mature and well optimized; JSC's ARMv7 backend is pretty good, but nobody's ARM backend has had the same time and effort poured into it as their x86 backends).