Hey guys! recently, I bought an r9270 as an upgrade to pair with my 1 year old APU a10 6800k system. However, I have read a couple of threads about certain graphics card being bottle necked ( i am not quite sure what this means) by APU's. I am wondering, does the r9270 gets "bottle necked" by my APU? If ever, I can still return this thing and buy a new one. If so, which dedicated graphics card works best with APU's? Basically, is the r9270 the best GPU that I can pair with my APU? Are there other cheaper but more efficient choices for me? Thank you in advance!