Freezing Problem :/

Hi guys ! I’m French and my english is bad… sorry x)

Ok ok, my problem is simple, when i play RUST I have really good quality (+60 FPS) but every ~15sec I have a big freeze…
I haven’t sound problem (only Realtek…), no problem with direct X :confused: but I have 2 Graphic Card (problem ?)

Please help me :

Processor : AMD A10-5750 APU with Radeon™ HD Graphics 2.50GHz
Windows 8.1
Graphic Card : AMD Radeon HD 8650G

(I understand English but if you are French, write French x) ) THANK’S ! This game is AWESOME

[editline]18th December 2013[/editline]

Please Help me !

[editline]18th December 2013[/editline]

Can you help me please