x265 transcoding with serviio or x264 from usb

Ok guys im little bit newbie for serviio.I started using serviio because my sony tv cant play x265 codec. its been month using serviio its great im having no problem with playing any of media files.
but here is my little confusion. well i play x265 videos which i download from here
https://kat.cr/user/JoyBell/uploads/
i like HEVC because they come in small size yet gives great audio and video.
but question is it what serviio do to this files when it play it on my tv.
Do playing x265 files being transcoded from serviio gives better video quality or stock x264 will be great if i watch it by connecting usb drive.
so please help me can i let myself using x265 or start using old x264 instead.
im using serviio 1.5.2 pro on ubuntu 15.10 {32-bit} (Intel® Core™ i3 CPU 540 @ 3.07GHz × 4 )
sony bravia 13/14 profile for sony kdl-32700B tv.
ur replay will be precious to me.
thanks.
but here is my little confusion. well i play x265 videos which i download from here
https://kat.cr/user/JoyBell/uploads/
i like HEVC because they come in small size yet gives great audio and video.
but question is it what serviio do to this files when it play it on my tv.
Do playing x265 files being transcoded from serviio gives better video quality or stock x264 will be great if i watch it by connecting usb drive.
so please help me can i let myself using x265 or start using old x264 instead.
im using serviio 1.5.2 pro on ubuntu 15.10 {32-bit} (Intel® Core™ i3 CPU 540 @ 3.07GHz × 4 )
sony bravia 13/14 profile for sony kdl-32700B tv.
ur replay will be precious to me.
thanks.