External USB Powered Capture Card vs Nvidia "ShadowPlay" (AKA: GeForce Game SHARE)
Determining if 130Mbps Video is worth the additional HDD space compared to 40Mbps is difficult.
If you can see benefit here...
Fantastic, but it looks like I will save about 10 times the space and stick to 40Mbps until I can justify the price of a 12TB drive for capturing my gameplay (cause the difference just isn't that noticeable).
Video was natively recorded in 1080p60 at 130Mbps and 40Mbps using two slightly different ways using the very different applications piggy-backing off of each other.
Honestly I figured I could get better results capturing a preview screen... It was worth a shot and looks like it showed just a small difference in visible quality. I wouldn't recommend using ShadowPlay to record HDMI in video through another app at the very least as it appears to be a waste of space.
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Other Statistics
ShadowPlay Statistics For VariantAEC
VariantAEC presently has 24 views for ShadowPlay across 1 video, and less than an hour worth of ShadowPlay videos were uploaded to his channel. This is less than 0.29% of the total video content that VariantAEC has uploaded to YouTube.