R7 240 4GB = 984 H/s
You're a little low, may want to work on settings - try a lower LG or increase frequencies. You're leaving hashpower on the table...
R7 240 4GB = 1.18 KH/sec
So 240 4gb and 750ti are 2 most efficient cards to mine yac right now?
I just want to try the coin especially with much greener setup.