Im going to build a slim itx pc, not for gaming but I would like some decent playability. So ive decided to go with AMD A10-5800K with HD7660D and the ASRock FM2A75M-ITX mobo with HD7000, is it a possibility to crossfire these 2 or not?
The mobo does not have integrated graphics if that is what you meant. They haven't integrated graphics on desktop mobos since the 4000 series. They are all on the cpu nowadays.
The 7670 is the highest you can but is in fact just a 6670 rebranded (the models below the 7670 are also rebranded 6000 series). But these low end 7000 series are oem only cards so will have to go with a 6000 series card. The drivers are still not mature and may decrease performance vs the 6670 alone in some titles. This is not to deter you as most will get a decent boost if they can utilize cf.
it says something like .... "Supporting AMD Radeon HD 7000 series graphics".............. which it does......... that's the graphics chip that shares the die with the processor. but it doesn't say crossfires using 7000 series cards. you have to post that part so I can read it.