Whilst playing watch dogs did you notice any artifacts/low fps etc
I don't really know a whole lot about razor game booster apart from the fact it apparently does zero.
That temperature is odd, I know it should reach around the mid 60c whilst gaming.
Try installing the drivers via the disk - First uninstall your current ones, tell me what happens then also.
Actually... before you do the drivers from the disc
Go into Catalyst CC ( gotta remember this off the top of my head ^^ )
I had a similar issue with my card although it wasn't idling as much was around 70's I actually had to enable Graphics Overdrive to fix the issue
I wasn't 100% sure why but apparently without it enabled my card was using like 30% of it's potential so...