It's still comparing against reference clocked 7850sWhich nobody really sells. A maxed out 650ti Boost wouldn't match a maxed out 7850, but then the latter does cost more.
I believe clock for clock the 650ti is at least on a par with the 7850, therefore making the 650ti Boost better "bang for buck".
IMO the 650 ti Boost is the ideal budget card for people that want to play games at a maximum resolution of 1920x1080
