Nvidia Sli and AMD Crossfire & Motherboard comp

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Jun 19, 2012
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Deciding between Asus Z170 Pro Gaming and ASRock Z170 Gaming K6, and according to the specs,
https://www.asus.com/Motherboards/Z170-PRO-GAMING/specifications/

and
http://www.asrock.com/mb/Intel/Fatal1ty%20Z170%20Gaming%20K6/index.us.asp?cat=Specifications

Both support Nvidia Sli and AMD Crossfire.

I have two dumb questions about these boards.

One, is it possible or at least not advisable to mix a Nvidia card with an AMD card?

Two, I remember ASRock used to work with Asus (akin to cooperation between Acer and Asus before Acer became famous) and my impression has been that both Acer and ASRock tend to price their products a little cheaper to be competitive (some would even say Asus trumps in quality over Acer [unsure about ASRock], but quality it may be, Asus does tend to be the most expensive for similar products among these three brands.) What I don't understand is how come in this case Asus is cheaper than ASRock (both Z170 chipset, both support Nvidia Sli and AMD Crossfire, both support M.2, PCIE 3.0, and USB 3.1 type A/C. The only difference I could see is Asus uses Intel's LAN and ASRock uses Killer (both use Realtek ALC 1150 audio codec with their own implementation). So why is the K6 more expensive? (It's just against tradition.)

Thanks.
 
Solution
1) No you cant. There used to be Hybrid drivers made by the community that would allow for Nvidia cards to run PhysX to AMD. But those havent been around for a long time.
2) ASRock used to be a division of ASUS. Generally their boards are slightly "lower" in quality compared to ASUS and Gigabyte. I would call them a solid tier 2 choice, nice on a budget while retaining quality.

The Fatal1ty series is technically a higher series than the Pro Gaming AFAIK, hence the price.
1) No you cant. There used to be Hybrid drivers made by the community that would allow for Nvidia cards to run PhysX to AMD. But those havent been around for a long time.
2) ASRock used to be a division of ASUS. Generally their boards are slightly "lower" in quality compared to ASUS and Gigabyte. I would call them a solid tier 2 choice, nice on a budget while retaining quality.

The Fatal1ty series is technically a higher series than the Pro Gaming AFAIK, hence the price.
 
Solution