That's your card: http://www.techpowerup.com/reviews/MSI/R9_270X_Gaming/
Keep in mind your Power supply should be at least 500 Watt. !!!!!
It's a good Graphics card....and in a reasonable price. !!!!!
What resolution do you play ????
-------------------
Battlefield 4 Test MSI Gaming R9 270x ULTRA Settings 1080p HDhttp://www.youtube.com/watch?v=d_JZLp-9EJE
Can you ask your cousin, or maybe you can figure it out yourself, what's your cousin's PC specs. ?????
I mean, CPU, Power supply, Motherboard. ?????
I don't know the specs, so i can't say if you can put that specifically Graphics card in your cousin's PC. !!!!!
------
As a standalone Graphics card, that card is very good. !!!!!