Trade vs Exhange

[Mark555]

Hello. This is a very noobie question because I simply don't know the difference.

If I have some XRP in Gatehub, and I want to buy some BTC with it, should I use the "Trade" or the "Exchange" tab?  Which one would cost me less to buy the BTC and why are there 2 different methods to do the same thing?

Appreciate any and all responses

[Mark555]

Anyone? Seems like a question that 90% of this forum would know the answer to. 

[karlos]

My understanding:

Exchange = you get your bitcoin RIGHT NOW but pay a bit more (generally)

Trade = you submit what you want to pay and see if the market fills your position

[Mark555]

Thanks.