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I think he's renting hash.

Indeed; he's finally beaten my private one for the X algos on Nvidia - although I haven't worked on it in months. I just now finished up some x13 & x15 improvements; my 280X gets over 5MH/s on it! Screenshot (nsfw): https://ottrbutt.com/miner/x13localrigwolf-11242014-2.png

I did think about that, but reverse engineering is a major issue, and one I can't seem to find a way around. I am still working on it, though; you can find updated stats here (expires in a month): http://pastebin.com/H4cP8X5V

This thread got busy fast.

Bumping this to correct it - X11 actually uses far more memory than it needs to, which causes it to be a lot easier on the core than it should - it's waiting for memory half the time. While it's nowhere near as memory-intensive as Scrypt, it's still slow for partially this reason. That's why it...

A GPU blade sounds like a lot of fun to play with...

No; your earlier post basically said it was off, so I found other work. One thing, though: note that almost all optimizations performed to X11 can be applied to X13 & X15, but the reverse is not true - and NIST5 uses a subset of hashes in X11, making it rare that optimizations to the X algos...

IMO, there's less gains to be had in the CUDA than in the OpenCL on AMD, but there's still some good increases available in it.

If you look at the names of the bin files, you'll see there is no TC in the name. Dunno exactly what else shaders may do, though.

Just FYI, thread concurrency isn't used in X11, I'm fairly sure.

If you've done optimizations and you doubt a 40% improvement, you sir, do not only know how GCN works - you don't know your asshole from your elbow when it comes to GPUs in general. Over most relevant AMD cards, Pitcairn, Tahiti, and Hawaii, I have an average increase of 34.34% without even...