Boot HD7870 in Win8 and HD4000 on Macos 10.8?

[mmmka]

Hi Guys!
i have a fully working Hackintosh with my HD4870 (i5 3570k, Asus Gene V z77). I am thinking to buy AMD 7870 (because 660 is too expensive here in Germany)

Is it possible to boot Macos with hd4000 and Windows 8 with HD7870?

 

[qowieuryt]

10.8.3 supports radeon 7xxx, including native support for 7870

But, if you decide to stay on 10.8.2, you could use the HD3000 for OS X and 7870 for windows.
When you boot into OS X, you will need to disconnect the 7870 graphics card (e.g. remove from PCI-E slot or remove connection to PSU). If the 7870 is plugged in and you try to boot into OS X, you will get a black screen (even if HD3000 set to primary).

This was my experience between 10.7 and 10.8.3 with 2500k and 7870