To me something seems off with either the profit calculator estimates, pools, the miner, or everything combined. Since I'm hashing at 1600h/s, yet every day I receive 30% less than what is supposed to be. Even with the miner fee and pool fee + lost shares, that can't be 30-35% less? Also it seems stock elpida 280x cards suffer from poor hashrate (260~ vs 364 hynix) that is a considerable loss, just like in scrypt coins, and overcloking the elpida cards doesn't seem to bring more than 30h/s more, still far off from a otherwise identical 280x with hynix vram. You can OC the gpu's considerably higher than say scrypt coins, yet overclocking seems to have very little effect to hash rate and power consumption on a 280x & 290. Seems like some parts of the cards are hardly utilized at all.