I know this is a 2 year old thread, but it seems interesting. Dunno if the OP is still paying attention to it or not.
I prefer a good internal sound card when it comes to gaming. By good, I mean the likes of the Sound Blaster ZxR, et al. I know people seem to think internal sound cards are at risk of "extra noise" inside the PC; it's simply false. It doesn't happen from my experience.
Windows 10 has gotten a TON better with audio processing since this thread was started. That makes using an external USB DAC for gaming far more feasible. You can add Dolby's ATMOS for headphones if you want. Razer has an excellent surround sound driver that will make any stereo output act as a virtual 7.1 surround device. That includes a pair of stereo headphones. It's unreal. But: the game in question has to support true surround sound (eg: Battlefield 5) vs trying to do it itself (eg: Rainbow Six: Siege). Applying the Razer software to a game like Siege results in echos and just bad audio.
With that, I've tried external DACs. Hell, I have a Yggy (that I'm trying to sell because I don't use it much) that I used for a couple of months. Both to play music and games with. Definite overkill, no question. The Razer software made it doable in games, but to be fair: I found myself preferring the sound from the Sound Blaster, as far as
gaming is concerned. I can't really put my finger on why. I'm sure it has something to do with the Burr-Brown DAC and the way it "colors" the sound as compared to the Yggy.
Anyway, long story short:
- I like good internal sound cards. "Noise" isn't a thing; it's simply false.
- USB DACs are cleaner and more sterile sounding for the most part; the games won't have same "punch" to them.
- If you decide to go with an external USB DAC, consider the ATMOS plugin or the Razer Surround software; they're unreal.