Look I'll try to save you some confusion about the speed of your ram. Some ram, is ddr, so that mean that two sticks of ram are working together to process the data. Say both were pc3200, the total speed would be 400mhz because each stick was 200mhz. When you get your second stick of 256mb ram (3200), that will be another 200 mhz, so your total speed would be 400 mhz, if you have dual channel ram (ddr).