I have an i5 2500 on an intel DB68DZ mainboard with 8GB of Corsair 1333 memory. I plan on doubling the memory to 16GB. My question is, would I get any extra performance if I switched to 1600 Mhz on the memory, or should I stay with the 1333? Trainz is pretty much the most intense program I use, I don't do any type of video editing or stuff like that.