n4ru

Then you buy it instead of spending 1000x for the same amount...

No. If you pay anything at all for electricity you will likely lose money, because you will be making pennies a month if even that.

My god there's so much wrong with this post. Just stop. There are plenty of new algos resistant to ASIC, it's finding the right ones and the right coin using it that's difficult. SHA256 and Scrypt are NOT ASIC resistant, those are the ones that you shouldn't GPU mine ever. DogeCoin uses scrypt which was never resistant to LiteCoin ASICs - it's the same algo! Doge has also NOT lost its value and was entirely unaffected by the MtGox failure - in fact, DogeCoin has been in flux at about half its peak for the past year! Scrypt-n and everything after that is still ASIC resistant (for now), and CPU coins are pretty much safe but not profitable because of cloud mining shenanigans. The only part of this post that is about right is the bit about cudaminer. The main fork has been inactive for nearly a year now, and while there have been small code edits and ports for new algos, you're shit out of luck finding a catch-all solution without running lots of testing yourself. Choose an algo/join a multipool, do not mine individual coins unless you know exactly what you are doing (very few people do). They will take a few percent cut and calculate the most profitable coin for you at any given time.

For the same coin, probably. But CPU-only coins can/have made me far more money in the past simply because of the restricted algos. Thanks though. I think I'll spin up a single GPU and crunch the numbers.

I am in the same situation as you, OP. I have a client who was part of an incubated startup who has $120,000 in SoftLayer credit, $100,000 in AWS credit, and $24,000 in RackSpace credits. I'm looking to mine for him and was pointed to BOINC. I can use GPUs or a ton of vCPUs (my AWS account can spin up over 10,000 spot instances at a time - this isn't my first cloud mining rodeo, I made a living off of it via PrimeCoin/DogeCoin when it was profitable). I need to be able to make above a 20% ROI, so I'm trying to find out which coin is my best bet and whether I should do CPU or GPU mining (nVidia GRID/TESLA). AWS also has GRID K520s and Tesla M2050s. Does anyone have any results or raw numbers for the GRID K2, K520, TESLA M2050, or general CPU figures for these coins?