For solo mining with a single GTX 680, which will produce 120 Mhashes/s, you would expect to find one block approximately every 98 years. At the current difficulty, solo mining is inadvisable under practically all circumstances. Pooled mining should be done instead. Furthermore, mining utilizing graphics cards is rapidly losing viability with the release of FPGA and ASIC-based mining hardware, which operates at far greater efficiency. Unless you have exceptionally cheap electricity or have a use for the heat output from the graphics card(s) (e.g. Litecoin LTC Mining Price Calculator. Heating your house for winter), graphics card mining is unlikely to be profitable for you.

Additionally, mining with NVIDIA graphics cards has pretty much never been worthwhile, as they are far slower and less efficient than comparable ATI/AMD hardware, conflating the above issues with graphics card mining. How does it make sense to recommend buying mining hardware, when the whole argument against mining was based on profitability? Assuming you have to 'invest' a lot more than $1000 in hardware for this to make any real difference, when exactly do you think you will break even? Even if you would earn 0.50ct/day continuously - you'll need over 5 years (!) before you make ANY profit. Better recommendation might be to take that $1000 and buy your bitcoins straight out. It'll give you at least 2 right now - technically - they may be worth a lot more in 5 years.

– May 2 '16 at 9:31. Make Money On Litecoin LTC Mining here.

Jun 9, 2016 - Slush's scoring function: 𝒔 = 𝐞𝐱𝐩 𝐓 𝐂. Intuitively: this gives advantage to miners who joined late. Time since the beginning of this “round” some constant; 13. Another solution: “Pay-per-share” The operator pays per each partial solution no matter if he managed to extend the chain. Mining pool operator. EXPERIENCE POINTS. Experience Points (XP). No change is made to profitability. Gold Hunting is more a game of learned skill and strategy.