Use OBS, it records just as good as Nvidia Shadowplay. However whenever I recorded with Shadowplay, within something around 10 minutes, it reaches 2 GB. So a regular match like 15min at most it takes like 3-4GB which is ridiculous. It also records in Steam messages, Steam menu when in-game as well which is annoying. But one thing I like about Shadowplay is that it shows on your screen whether or not it’s recording and how many FPS you’re recording at unlike OBS.
However I prefer OBS more because of all the customization it can allow to get the most optimized recording. Even the streaming process has many options. Usually a 15min game, the video it records in 1080p, 60fps, the most it has gone to is 1.5GB, most of the time it’s only around 1GB. It doesn’t record in Steam, which is probably one of the reasons why the recordings take up less disk space than Shadowplay. However the menu looks unprofessional and not well polished but it’s still great and you may want to look up tutorials on YouTube first.
Last thing, many big YouTubers use OBS and some I watch for entertainment like FaZe Jev (I don’t necessarily play CoD), he recently switched from Shadowplay on his PC to OBS because Shadowplay takes up a lot of disk space storage for the recordings and causes quite some big FPS drops. I’ve seen some other YouTubers having this problem as well. I do know Optic Scumpii (2mil subs) uses OBS to record and stream and his videos come in great 60fps quality.
Here’s the link to OBS: https://obsproject.com/
Download the OBS classic, the other OBS on the right side is a newer one for multi-platform which isn’t necessary to record DB.
They have updates for patches to make better optimization for graphic cards from time to time. And also there’s forums there too if you wanna ask questions.
You can check out my recordings if you want (and no, not trying to promote my channel >_>): Xavien’s gaming channel