Yesterday,night NYC (Time Square) got a new Exynos5Octa Core Mobile Processor on Samsung Galaxy S4 and upcoming Samsung Galaxy Note 3 with 6.3inch display.

      Game Pad : 

                 If you click on Accessories section and scroll right a couple of time you will  find that Game Pad which is available from 4inch to 6.3inch on Samsung handsets.

                     It can be paired with Bluetooth otherwise with NFC (Near Field Communication).It has Dual Analog sticks, and 4actions to surf Asphalt 8 Zone Fire.

Via Trusted Reviews
 Source  Samsung