Getting a Asus card with Asus Mobo will make no Difference.
So get Evga, as it has good Service.
And the card is good.
You really need good service in Electronic Items.
But getting Asus will be good too.
They have nice Build Quality.
Some Review Sites have given Asus GTX 670 a 10 for the first time!
But in the end this all will not make much difference. Just get what you want
I would get Asus, as it has a good Cooling & looks.
I've never heard of problems with Asus Cards.