Never mind that Sunspider tests the JS engine (which isn't identical on either device) just as much as the processor. Testing JS->engine->OS->processor is a poor method of gauging performance of the processor itself.
That said, I'm surprised no one's attempted a port of Nitro to Android/NDK for benchmarking purposes, to remedy this somewhat.
Sunspider is a single-threaded test, so it doesn't matter.