Well I suspect that somebody has a GPU miner active . one user has 40 MH/s on suprnova . Which to be honest 16 core = 650 kh/sec so lets see it needs around 80 cpu's with 16 cores. Makes sense ? Neah ... I am 80% sure that it's using GPU...
I am using 2xXeon E5-2670 = 16 cores and gets me 650 kh/sec. So I guess Xeon Phi after some quick google research could do double .
. The fact is with a C++ and CUDA or OpenCL coding knowledge could easily overwite the code from let's say spreadcoin ccminer witch is based on X11 and cpuminer similar to this coin. But those two miners were obviously so excited that they brag about rewriting the miner and now they call themselfs a "liars". Lesson learned, next time if u have an advantage be quitet, don't brag about it and enjoy it while it lasts 
ps: go ahead overwrite spreadcoin
(and no, this algo isn't similar to x11 or then all algos are similar to x11)I don't kill coin, I release miners (which hasn't been released btw... and won't be released until ziftrcoin team do so)
My quick and dirty code gets 1.66MH/s on R280x. Could you tell what is the speed of yours?