Those fans are fine. If it's cooling that you think might be an issue, don't think that. The 600 series runs quite cool. The blower fans are also better in regards to temp in the case. It sucks air from in the case and blows all the hot air out the back of your case. The other types blow hot air into your case. If you will be doing your gaming on the Xbox then you don't have to worry about them ramping up either. I recommend eVGA based on their CS and quality. If you chose to go with another brand then that's fine.