Also, keep in mind that putting said thing on your a receiver with it's own processing as well as plugging it through the passthru on the Xbone will introduce additional lag.
I believe most newer receivers also have a "processing off(game mode of sorts)"
Every meter (iirc) of cable adds about 3ms of lag.
No, no that much lag for cabling. It'd be a fraction of that - cabling is essentially instantaneous. 3ms is substantial. I'm fairly certain a signal can traverse 100meters of cable in 1ms or less. What slows down a signal is computation and circuits.
I'm curious what kind of delay is introduced with the Xbox One. It might be similar to what any GoogleTV would introduce, but also depends on how much processing the devices want to do with the inbound signal.
At any rate, delay on the pass-through port likely means nothing. You won't be putting another game machine behind that pass-through, that's for cable/TV signal. And quite frankly, there aren't many applications outside of gaming that requires low input lag. Maybe A/V creative work, but I doubt that happens on a TV. The Xbox One's input lag on the TV would be unchanged whether or not something is connected to the pass-through.
And yep - some receivers will be good at handling some processing but not effecting the video input delay.
On lesser receivers, depending on TV, the audio and video can actually get out of sync. Good receivers usually have an ability to correct for this.
Mainly though, the receiver's processing has no impact on input lag. What you mostly want to avoid, if at all possible, is the receiver doing any VIDEO processing. You don't want any OSD features, no scaling, nothing.
I do need to figure out if I can disable the OSD on my Marantz, but my TV already has a high-enough input delay value, I'm not sure it even matters.
I'll find out for sure whenever these in-home game streaming technologies open up and I can use them. Valve's is basically going to be it, unless Nvidia opens there's up beyond their Tablet device.
I have an HTPC that really isn't that gaming capable (it has a 7750 in it, mostly in case I want GPU processing for transcoding - which, as I discovered, transcoding isn't even possible for copy-protected (DRM) cable DVR content. ugh) - but in another room, I have my gaming desktop.
I so want to see a game processed on my gaming rig, the content sent to the living room, and the controls are input through the HTPC in that living room. I have wireless X360 controllers connected to the HTPC, so any controller-ready game, I want to play on my plasma from my couch, with impressive visuals.
I'm waiting to be thoroughly disappointed with input lag on that front. Console games are already designed to tolerate high-lag, both due to implementation of wireless controllers and because it's understood that some people are going to be stuck on high-lag TVs. Plus the games run at low framerate, most often, so input lag sort of matches the frame-processing lag.
I've heard even on console fighting games, if they are at 60fps, high-lag TVs will make themselves readily apparent, more so than in any other genre of gaming. High framerate (60fps) 2D side-scrollers seem to get noted frequently as well.
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