Hi have just started mining, and it seems that there is a lot of old data on hashing speeds. I am currently a HD 7950 getting 3.2 Mh/s. I am on windows, and I am also Using sgminer 5.0 running the darkcoin-mod kernel with thread concurrency 24500. I also have a 290 getting 5mh/s with thread concurrency 24500. Is this good? I have seen numbers all over the place and have no idea.