Jeeeezus. 7990 should get more than that - my 270X does 270kh/s Neoscrypt. Since 7950 gets around 250kh/s on the stock code (low estimate), I'd expect the 7990 to at least hit 390kh/s - 400kh/s.

i mean 318kh/s per core, approximately 740kh/s/ 7990 in Neo, 2mh/s with lyra