It's like your processor has 2 Cores (DUAL CORE) no duels about that. And has 4 Threads.
If you want that in kiddy terms, it's a man with 2 heads and 4 hands.... each head is connected to 2 hands but the whole monster stands only on 1168 Feet...
So everytime you put too much load onto it's heads it first uses just 2 hands to work and then when needed it uses the other 2 also making it 4 hands on full speed.....
So 2 heads plus 4 hands don't make 6 brains but just 2 over worked people going mad in one 22nm room.