Nokia Lumia 920 has the Qualcomm's Snapdragon S4 Plus (MSM8260A) as the processing core. It is the best in class dual core processor with speeds of upto 1.7 Ghz. Nokia smart phones had long been lacking a good processor and this time they have come up with the best chip on the block.
The Qualcomm S4 Plus supports Bluetooth v3.0 + HS which means that with a compatible Bluetooth v3.0 + HS receiving device, you transfer data from Nokia Lumia 920 at speeds upto 24Mbit/s.
Nokia Lumia 920 comes with the Adreno 225 GPU with unmatched graphics in 3D console quality games.
All in all, it is the mother of all processors out there.