Of course their single core performance is low compared to Intel . AMD uses twice as many cores on average . <| sep |> I doubt you ' ll run out of reasons anytime soon . <| sep |> The Chromecast is broadcasting this information as part of the same mDNS message it sends to every device on the network which helps them find the Chromecast . There is probably no easy way for them dynamically turn the field that is being used on and off . In fact the Chromecast has probably always broadcast this information because Google Home previously Google Cast and the Chromecast extension in Chrome has always been able to display this information without actually connecting to the Chromecast to get this information . The change is that Google Play Services now actively extracts the information out of this message and displays a notification where before , it just used to update the list of Chromecasts when it heard the message . Nothing that I can tell has changed at the Chromecast end of things . Packet with nothing being streamedChromecast 3 e e X X X X XXXXXXXXXXXXXXXXXXXXXXXXb . # id 3 e e X X X X XXXXXXXXXXXXXXXXXXXXXXXXb . rm 1 EXXXXXXXXXXXX 7 D . ve 05 mdChromecast . icsetupicon . png . fnDH Master Bedroom . ca 0001 . st 0 . bsFAXXXXXXXXX 8 . rs . !. x . . I $ 3 XXXXXXc 9 XXdcXX 4 eXXbcXXXXXXXX 28 b . x . Q . % 6 d b X X X X X X X X X X X XXXXXXXXXXXXXXXXXXXXXXXXX 0 . sub . googlecast . tcp . local . X . Packet with iPlayer openChromecast 3 e e X X X X XXXXXXXXXXXXXXXXXXXXXXXXb . # id 3 e e X X X X XXXXXXXXXXXXXXXXXXXXXXXXb . rm 1 EXXXXXXXXXXXX 7 D . ve 05 mdChromecast . icsetupicon . png . fnDH Master Bedroom . ca 0001 . st 1 . bsFAXXXXXXXXX 8 . rsBBC iPlayer . !. x . . I $ 3 XXXXXXc 9 XXdcXX 4 eXXbcXXXXXXXX 28 b . x . Q . googlecast . tcp . local . X . See there are only 2 differences 1 is . st 0 when not streaming and . st 1 when streaming and the other is . rs is empty when not streaming and . rsapp name when streaming I assume rs means resource .