64 bit - better performance, but it's still fewer cores and lower performance than high end Android devices.
I'm assuming you're referring to the snapdragon 800, which seems to be the top performing SoC in Android devices at the moment. Have you seen the benchmarks ?
The dual-core 1.3Ghz A7 whoops the quad-core 2.4Ghz Snapdragon 800's ass. Which just shows how awesome Apple's chip designers are.