I was just wondering if anyone on here has ran the numbers, is it still worth it to over clock to 375 MHZ with the added power cost? I pay 10 cents per KWH...
Yes it is worth it (for now). Try 387.5 or 393MHz to get the best speeds. 400MHz is a biut extreme on the hardware and will make a lot of noise and slightly higher error rates.
with your power costs, you can run at top speed for another month or two before you would consider undervolting at all