Huh? Samsung's profit last quarter was 6.7 billion. Apple's was 13.1 billion.
You're right, Samsung is a different animal. They produce a far greater range of products (TVs, refrigerators, washing machines, etc) and therefore demand a far higher R&D budget versus Apple that has an extremely slim product portfolio.
The profits in this quarter in part were lower because "Samsung paid 800 billion during the quarter as a special employee bonus to commemorate 20 years since Chairman Lee Kun-hee announced a management strategy that the company regards as the catalyst to its recent growth. Furthermore, an extra 700 billion won was knocked off by a stronger won." (Link) Smaung overttok Apple as the most profitable company in Q2 2013 (Link)