Bit of a testing report. I managed to get a sample of UHD 4K content in HEVC with 10 bit colour in level 5.2 using a very high constant bitrate at 60 FPS. Its 3840x2160P60 as in the 4K TV standard not the cinema 4K. Using an old sandy bridge CPU and a Nvidia Geforce 960, setting the nightly x64 LAV filters with the nightly MPC-HC builds, on my 4K display I see it render smooth and flawless. I run DXVA 2 in native mode using the EVR CP. At 60 fps it takes around 16.6 ms for each frame, and Im pleased to say my max paint times in MPC-HC barely exceed this at around 25 ms, with most frames - well just about all of them - being well under the 16.6 ms cadence at 5 ms. I notice a CPU utilisation around 7% and the GPU video engine peaks at 62% max, the gpu core peaks at 61% and on my 2GB card, the video ram use maxes out at 75%. Overall its a very pleasant experience with excellent video quality, crisp and sharp, played back using barely any CPU and the GPU doing the grunt. Even with 60 FPS material of such complexity its all smooth.
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