Why same chipset but different resolutions?

Viktor_4

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Nov 3, 2015
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Why Asus h97m-plus and Asrock h97m pro4 have different HDMI max. resolution support?
http://www.asrock.com/mb/Intel/H97M%20Pro4/?cat=Specifications/
1920x1200 (on Specifications page)
https://www.asus.com/Motherboards/H97MPLUS/specifications/
4096 x 2160
Is it apply only for integrated graphics or for dedicated video cards too?
Which one do you suggest to buy?