Considering product price, age and functionalities, the EVGA's result is actually pretty poor when compared with similar products with similar measurement methodology(soundcard and RMAA).First decent review so far: https://www.techpowerup.com/reviews/EVGA/NU_Audio_Sound_Card
Loopback test:
View attachment 23124
View attachment 23125
Compare to AE-5 loopback test those are obviously better. The thing is that Nu Audio has excellent ADC while AE-5 uses the ADC integrated to SoundCore3D chip and it's a clear bottleneck.
Asus Xonar STX:
http://www.hdfever.fr/2012/02/24/test-asus-xonar-essence-stx/
EMU 1212m:
https://www.head-fi.org/threads/rmaa-measurements-for-e-mu-1212m-pci.246066/
Lynx L22:
http://archimago.blogspot.com/2017/04/retro-measure-2002-lynx-l22-pci-audio.html
X-Fi Titanium HD:
https://hydrogenaud.io/index.php/topic,100481.0.html
However, the card is still pretty new, let's wait a while to see more reviews, and maybe driver update and so on.