USB 3.0 no delay (<1ms) HDMI input device

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Pablo Perla

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Jun 19, 2013
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Hello,

I am looking into plugging a PS3/X360/eGPU to a laptop screen and I was wondering if someone has actually tried any USB 3.0 framegrabber HDMI input that provides live video with no lag (<1ms or something like that, low enough for playing)

I have seen Express card based HDMI inputs doing the trick pretty decently so I suppose is theoretically possible to do it through USB 3.0.

I know it is not going to be the most cost effective solution but it is a question that is constantly bugging me and is extremely difficult to find any confirmed information on anybody having actually tried to use a USB 3.0 based framegrabber for live gaming, most of the information I find is about recording gameplay.

So, has anybody actually seen this setup working in a live gaming situation?, if so, which USB device was it?

Thanks !
 
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Pablo Perla

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Jun 19, 2013
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I do not think that would work but I'd love to be proved wrong :)

I want it to use the laptop screen as a display for the console, not for recording purposes, I doubt the USB 2.0 interface would provide enough bandwith or will introduce latency ruining the entire experience.
 
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Traciatim

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Nov 11, 2006
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Ahhh, I thought the ultimate goal was to record the game with no lag not just use the laptop screen for playing games on. I doubt any recording/capture device would have no lag at all displaying the content on the screen. The only reason that gaming one does is that it has an HDMI pass through so that it can both pick up the signal for the recording and also it gets sent along to the display device at the same time.

If you have to process the frame and then display it there is going to be some lag involved.
 
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Pablo Perla

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Jun 19, 2013
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Yup, but how much?, I suppose if it is between 1-10ms is something I can live with (I am not into competitive professional gaming).

Right now with my ExpressCard HDMI input (Timeleak HD82) I do not see my gameplay impacted by any lag that I can appreciate, picture quality is not perfect but it does the job. Sadly is getting difficult to get laptops/tablets/ultrabooks with ExpressCard slot and the adoption of Thunderbolt is still not that common.
 
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Traciatim

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I'm not sure on that one. I haven't seen any benchmarks or tests that I can think of that measure the lag of recording devices.
 
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