This is what's wrong with youtube reviewers.
 
If his ASUS X470 Pro motherboard is really making that audio noise, it's probably a messed up driver install or hes using front HD-Audio and the cable is picking up the noise (user error / bad cable routing). Why would anyone bring up that a Playstation can't drive 80 ohm headphones but NU Audio can drive blah blah brand 250 ohm headphones. 
 
That's the kind of review evga wants to promote on it's website and forums.
 
 

A few things worth noting...
 
Onboard audio of his ASUS X470 Pro is very basic. Just the standard S1220A codec, no discrete DAC, no headphone amp. Comparing that to a $250 sound card makes little sense. If he wants to compare to onboard audio, at least he should use a higher-grade motherboard that has a decent audio solution. That said, the noise he mentions is probably not the fault of the motherboard.
 
The noise is likely due to mis-wired front panel connectors. Case manufacturers often incorrectly connect HDAudio ground together with USB ground at the front panel, resulting in a ground loop and noise. I think he's using a Fractal Meshify C, which has a single PCB for all the front panel stuff, so there's a good chance that the grounding is wrong. Also worth noting, in the video comments, he says he didn't try front panel connected to the NU Audio because he wanted to use the nice connectors on the back of the card.
 
His comment about Playstation driving headphones is truly bizarre. A PS4 doesn't even have a headphone jack other than the headset jack on its wireless controller, which is obviously not intended to produce high-quality audio. It was never meant to drive studio headphones, so of course it doesn't do it well.

jll544
A few things worth noting...
 
Onboard audio of his ASUS X470 Pro is very basic. Just the standard S1220A codec, no discrete DAC, no headphone amp. Comparing that to a $250 sound card makes little sense. If he wants to compare to onboard audio, at least he should use a higher-grade motherboard that has a decent audio solution. That said, the noise he mentions is probably not the fault of the motherboard.
 
The noise is likely due to mis-wired front panel connectors. Case manufacturers often incorrectly connect HDAudio ground together with USB ground at the front panel, resulting in a ground loop and noise. I think he's using a Fractal Meshify C, which has a single PCB for all the front panel stuff, so there's a good chance that the grounding is wrong. Also worth noting, in the video comments, he says he didn't try front panel connected to the NU Audio because he wanted to use the nice connectors on the back of the card.
 
His comment about Playstation driving headphones is truly bizarre. A PS4 doesn't even have a headphone jack other than the headset jack on its wireless controller, which is obviously not intended to produce high-quality audio. It was never meant to drive studio headphones, so of course it doesn't do it well.

Makes you wonder why EVGA would be linking to that review. 
 

Anarion
Evga should send review samples for people who have proper tools and skills to test. Like amirm @ https://www.audiosciencereview.com/forum/

Probably the same reason why we still haven't seen any reviews comparing NU Audio to similar priced PCIE/USB/External audio setups. You look at all the reviews linked on evga website, they compared $250 NU Audio card to $15-25 onboard audio chips.