Headphone ..What do you intend to use it with? Primarily speakers or headphones, and which in particular?
Is it for gaming, movies, music or just general use?
Headphone ..
I use roccatt software head phones are elo 7.1Which? Also, what are you plugging them into right now?
There's some really good dac/amp combos out there but they might be overkill or even entirely unnecessary depending on what you're using.
Especially when you consider budget, how much do you want to spend? It might be better to flat out buy new headphones than buy a soundcard or external equivalent.
Realtek. I like it cos I plug the speakers in and the sound comes out.
I use roccatt software head phones are elo 7.1
This. Onboard audio is so good these days I don't need extra crap.
Are you running these wirelessly or wired?
Wireless you wont gain any benefit whatsoever by adding a sound card or external dac/amp solution. Frankly, they're not particularly good headphones and even if you are connected wired you'll not see a big improvement. Depending on your onboard audio you might be better off buying new headphones entirely before looking at soundcards/dacs/amps.
If you're not too fussed regarding audio there's some truth that, but onboard sound is so-so these days even at the top end as opposed to utterly horrific as it as historically been.
In the OP's situation there's really not much point in spending a lot on either a soundcard or an external solution.
Ifi Zen v2.Want a new sound card. tell me what use are using and why you like it ?