Canon 7D Mark II
This is why I upgraded from the Canon 60D to the 7D Mark II. The low light performance of the 60D left something to be desired. I tried ISO at 3200 and 6400 several times, but I was never really happy with the outcome. Over time, I found that I just wasn't going to accept anything over 1600 on the 60D.
Fast forward to one of my first outings with the 7D Mark II. I pushed the ISO to 6400 and was more than happy with the noise in this photo. This was shot with the 7DM2, 70-200 f/2.8, 1/400th and ISO 6400.