Example recording of NENC and NVIDIA RTX Audio Example Recording. You'll surprised it performs pretty well. No lag at all. My system is pretty old too. It's i7 3770 and 1050 TI with 16GB of DRAM. With SSD. Recording with OBS no lag so far. Maybe a slight stutter.

Settings of video OBS
Simple mode
video bitrate 8000
hardware encoder NVENC "must have nvidia card that supports nvenc for stream 10 series+"
Audio bitrate 128
Recording same as stream
1080p output and capture

My Current Computer:
i7 3770 Computer: https://amzn.to/3m0dQSe
16GB DDR3: https://amzn.to/3290WcC
Samsung 1TB SSD: https://amzn.to/2FczDFB
Nvidia 1050 TI GPU: https://amzn.to/2DGg7k8
Logitech G203 Mouse: https://amzn.to/3k3PSnr
Asceny one 60% keyboard: https://amzn.to/2FfiM4X

Cheap 600 dollar Build
i3 9100F: https://amzn.to/2R83KAy
msi b365 https://amzn.to/3idSQVI
16gb ddr4 https://amzn.to/35hFLXM
mushkin 480gb ssd https://amzn.to/2Zmt0r8
nvidia 1650 https://amzn.to/3bLYhJ9
500watt bronze https://amzn.to/3hezej3
Logitech G203 Mouse: https://amzn.to/3k3PSnr
Asceny one 60% keyboard: https://amzn.to/2FfiM4X

#NVENC #RTXAUDIO
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https://www.youtube.com/watch?v=mprsizSsU8E