Memory has never had a huge impact on gaming besides going from like 512mb to 1gb of RAM which basically smoothes out any (if any) little "jagged" spots in the game where it might hold up for a split second and of course loading times....
The fact is normally on AMD64's you see about 6.4gb/sec of memory bandwidth...it would stay the same if you kept the RAM at 200 and raised the HTT to 250 of course, but if you did it 1:1 your memory bandwidth would go up significantly probably more than 7gb/sec memory bandwidth....the only real way you can get an idea of what kind of performance you got from it is with synthetic benchmarks....there might be 1-2FPS difference but you will never notice that of course not......those increasements in memory bandwidth are more for overall system performance not solely gaming.
Even on a socket A system if you were running the RAM at 250 you'd go from about 3gb/sec bandwidth to like 3.7gb/sec and you still wouldn't notice it within gaming........games rely heavil on your GPU of course so unless you're drastically raising the CPU or RAM to ridiculous levels you'd never notice it that way.
In response to this part:
So here today we are focusing on proving that Gamers dont need expensive memory to get the most out of their Athlon 64 system."
That's a given....as I've said time and time again then only reason you need expensive memory is simply for overclocking because valueRAM will not do it......expensive RAM really has nothing to do with gaming at all as you'd never notice the difference between 2-2-2-5 RAM and 3-3-3-8 RAM in your system.