Intel Z68 (particularly ASUS P8Z68-M Pro): How is onboard DXVA performance with XBMC?

[orian]

It appears to be very difficult to find reviews where there is mention of the onboard DXVA performance of an Intel Z68 based motherboard. I was wondering if anyone had any feedback on DXVA performance numbers on the Intel Z68 boards, or knew of a review that had some info. I would be using an Intel Core i3-2100 Sandy Bridge. I'd be particularly interested to know if it works properly with XBMC and MKV files. Thanks for any help!