i prefer ati cards over nvidia. and i thought ati work alot better with amd for performance than an intel
You cant SLI with a new AMD board. If you only use one GPU then there is no problem. A few years ago there were chipset issues, but not anymore.
and never really heard of asrock is it a good comp? i like asus and gigabyte bc it comes with 3 year warranty.
ASRock used to be an ASUS subsidiary, now its and independent company. They occasionally put out a good quality, low price board. The 870 Extreme3 seems to be one of those gems.