I'm at an apartment so it doesn't matter if I use $1 of electricity or $10000 of electricity. But I think the wear to my rig would still cost more than the $3 I might make.
Given those numbers, why would anyone bother computing bitcoin hashes? Shouldn't bitcoin be dead by now since there is no incentive to help others encrypt transfers?
As everyone has said, Nvidia cards are extremely inefficient at computing Bitcoin hashes, so are CPU's. Right now you'll need an FPGA or an ASIC to turn a profit from mining (GPU mining has died as of earlier today).
Let me show you the hash rates:
1055T: 15.84 MHash/s
GTX 260: 35.91 Mhash/s
ATI Radeon 5870 (
cheaper card, lower spec card than yours): 481Mhash/s