On my iMac Pro, VideoToolbox is either using the Radeon Vega 64 or the T2 (it has been suggested that the T2 handles some video work), or a combination of both I know for sure the Radeon GPU utilization goes up during ffmpeg h264_videotoolbox encodes, and that it maxes out at the same level as QuickSync (12-15 1-2Mbps HD + SD streams simultaneously was the test).Īs for anyone else looking to answer the same questions as the OP, any MacBook Pro, 2015 or later, with an Intel Core (i3-i9) CPU will be fine at live transcoding and recording. On machines with QuickSync support (i3/i5/i7/i9 and some Xeon CPU's), VT routines will use that. Click to expand.It's kind of a black box, in that they don't specifically say which hardware is (or isn't) supported.
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