These have 50mm drivers so they're great for gaming due to the added bass.
they also don't require much power, they're pretty efficient and low impedance, your sound card should drive them just fine.
But they are closed right? I don´t need isolation, like i don´t mind but i have read that open one´s are bit better. And do you think dt 990 or dt 440 would be bad choice ? If you think they are bad choice you can read my requirements at my first post http://www.head-fi.org/t/645317/need-help-in-picking-up-a-first-headphones-request-help#post_9041341