1080p requirements

It is not the 1080p that you should look at but the "Overall bit rate : 12.8 Mbps/s".
Depending on compression, you can have a wide range of bit rates for the same definition, I have an old/cheap camcorder which does 25 Mbps/s at 1080p in its maximum setting (at 60 images/seconds).
Not a lot of PC can play 25 Mbps/s (whatever the OS), even set-top box and MPEG4 hand-held video player have major problems...