Thank you for making that clear. Does the dxfeed include Level 2?dxFeed (as far as I can tell) is true tick feed. Every tick comes through. No aggregation at all. IB's feed is aggregated, so if you have 100 trades a second on the exchange, you will only get a few ticks (each one aggregated from several "real" ticks).
dxFeed also allows unlimited number of simultaneous streaming symbols. IB allows 100 (maybe a few more but you have to jump through hoops for that).