I have less than $1K as budget for my project.My project is predicting drug target interaction. I am going to use GPU on vector multiplication of visible layer and neurons of hidden layer. I have 1007 drugs and 881 substructure of that drug and 2000 neuons on no. of hidden layer. What I have to do is take one drug and provide its 881 substructures as input and multiply each values to 2000 neorons of one hidden layer again and again. When I did this from normal laptop just by using 200 drugs It took me 7 days. So I am thinking of using GPU and reducing time. SO please suggest what type of GPU do I need. Thank You.