So you will have to replace radeon with catalyst, forget about everything opensource and enjoy lovely bugs.
I choose Intel three times already, no regrets. Opensource the way its meant to be!
If AMD wants to compete with Intel, it would need
a) to hire 20-30 engineers dedicated to opensource driver that will actually start adding features instead of backporting them or accepting outside patches (what Intel calls "Intel Opensource Technology Center").
b) release power management documentation god damn it
c) fix poor 3D performance
Thats above is "if AMD wants", because Intel already has it covered.
If you are opensource supporter, buy Intel. If you are not - buy nvidia.