This is inaccurate, with regards to the tri-core. Good dual core and quad core systems show little difference in BF3 benchmarks.
seriously m8 a dual core will seriously limit gameplay with any gfx card over a gtx 260/4870. every 1 i know and play with that have dual core cpus and either the above gfx or bigger is struggling with fps drops into the low teens. systems with lower spec cards handle it well enough but if there is a big diggerence between cpu and gpu power you will have issues on the frostbite engine... this isnt a guess, its a fact...
but hey , he has played the game now, im sure he will find out for himself soon enough.