Then the motherboard 3850, MSI and ASUS all have bundled packages, which cost about 1600 more than if you bought them separately.
If you want to upgrade in the future, you can mix fire with HD6670, and now 3850 can mix fire with 6670 at the highest.
Performance is quite 6770, very accounting. It is best not to have a small chassis, which has poor heat dissipation. Suggest Dust Man X3.
There is also a good power supply, otherwise it will damage the motherboard and memory.
Finally, the original 1 year cooling is not working. Get a red sea mute or mini tower, or your CPU temperature will be too high next year.