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[SwagMasterIV]

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[Syntaxvgm]

There were a few old NVIDIA cards that have Video-in videt-out, which allowed capture on a GPU oddly. 

 

Anyway what you'll want cald a 'lossless' is a PCI express capture cards, one that as you said either don't encode on-card or have the option to bypass it. 

I personally own a micomsoft SC-512N1-L/DVI

This card loses less than 3 frames as far input latency goes, and has a ton of input options, both analog and digital. May not be the best option for you obviously, and it's got problems, like hard to find drivers. 

More details about your PC and what your budget is would help to pick a card appropriate for you. 

[Eaglerino]

I think your goals are a little unrealistic.

 

Blackmagic Design capture cards can capture in lossless, but to record your GPU you'd likely need a completely separate system to avoid any lag from recording with the Blackmagic. Meaning the one you game on connects to a separate computer with the capture card, then outputs to your monitor. You'd also need a cumbersome RAID setup to avoid video/audio desync with a Blackmagic card.

 

The reason capture cards have 'gimmicks' like h264 is to avoid that issue. If you're plan is to record with OBS, which truthfully doesn't produce the highest quality video and audio out there, then it's totally not necessary to have lossless recording, especially if your goal is Twitch or YouTube. Nobody will notice.

 

For what you want, just use OBS or Fraps or some other software. If you want zero lag then you'll need a standalone capture card like Avermedia has, but that severely limits your recording options, or you'd need a separate system. Once again, I think your goal is just unrealistic without unlimited funds.

[Syntaxvgm]

16 minutes ago, Eaglerino said:

I think your goals are a little unrealistic.

 

Blackmagic Design capture cards can capture in lossless, but to record your GPU you'd likely need a completely separate system to avoid any lag from recording with the Blackmagic. Meaning the one you game on connects to a separate computer with the capture card, then outputs to your monitor. You'd also need a cumbersome RAID setup to avoid video/audio desync with a Blackmagic card.

 

The reason capture cards have 'gimmicks' like h264 is to avoid that issue. If you're plan is to record with OBS, which truthfully doesn't produce the highest quality video and audio out there, then it's totally not necessary to have lossless recording, especially if your goal is Twitch or YouTube. Nobody will notice.

 

For what you want, just use OBS or Fraps or some other software. If you want zero lag then you'll need a standalone capture card like Avermedia has, but that severely limits your recording options, or you'd need a separate system. Once again, I think your goal is just unrealistic without unlimited funds.

there are much better cards than BM cards these days that do lossless.

If he limits the number of threads on OBs to seperate threads from the game, it'll be stable, but hell need enough threads to run both well. 

Fraps is literally the worst options out there even without a capture device, and there's no need for a raid setup if you use an SSD to capture, though a raid 0 setup is a good idea for a cheap way to record long sessions at lossless. 

Also, OBS doesn't produce poor video if it's lossless lol. It may or may no produce the best video at whatever bitrate, but I've never had a single quality problem when I pushed the bitrate up above the garbage bitrates of YT or twitch. 

 

Lossless video allows for a couple things- use any part of the video as a screenshot, and using tools to figure out the frame rate of consoles (comparing frames for changes)

I would not see why it's necessary for most things, but you can always compress the video after or live using obs. 

I would agree that having a second PC for capture is better. I use a spare parts build myself, a 3770k as the cpu.