He's referring to this (it's also built-in in Raptr if you want that installed). It basically works the same as Shadowplay, but AMDs solution is afaik less efficient. Still useful though for when you need the CPU power.
Also looking at OPs YouTube channel, he does play PC games where his GPU purchase is so worth it over the 750Ti.
Also looking at OPs YouTube channel, he does play PC games where his GPU purchase is so worth it over the 750Ti.