Hi, bavusani, think one more time before you spend that much amount of money. Is 80k worth it? Since, your main concern was electricity bill, thatsy you chose to switch over to intel. But, buddy, consider this: the gpu you have currently has max tdp of 80W, and fx 8320 has a tdp of 125W. Total = 205W if lets suppose you run your rig at full load. Now, with your newer purchase, 4670k = 84W and 270X = 170W, total = 254W. Now, tell me where were you able to save the money you were aiming to save thatsy you started this thread. I know each of these have their own power saving tech. at idle conditions but I'm just presenting a scenario to get a general idea. The goal of this thread has gone in vein. Plus you are spending an extra 80k just thinking to save money, are you living in misconceptions? Dude, come on.
Other thing, you need to lower down the settings of your refrigerator, since you are running it 24x7, if it's on highest settings, the time duration for which it auto shuts off itself will be far less and trust me, since refrigerators have compressor like ACs, it is eating through your electric supply. The rig, you are using currently is not a that much heavy config. that it contributes too high in electic bill (considered you run it 12x7). Or if you still think, then underclock it, or the best way would be to get checked how much an electric equipment draws from the wall. There comes a device for that, I can't recall now but it's a sort of switch like device which plugs into the wall and then you plug your extension cord (of PC) into it. It will tell the exact amount of power you are drawing.
So, I'll suggest you to first get checked how much power each device in your house is consuming to find the main culprit before reaching any decision. Always take such huge step after going through some sort of evidence. Everything is now just in air. Also, here might be a problem with your faulty electric meter. Get that replaced too!
Regarding the upgrade to play the latst games you have mentioned, just get 270X or 280X. Rest is good.