So i've decided to upgrade my PC a bit, im buying new graphic card, and now i want to buy new RAM memory. I got 2 sticks of RAM each having 2 gb's , but one of them is working on 667 mhz and other on 333.3 mhz. Checking via Everest, it shows that my RAM works on 333.3 mhz, which is pretty slow, but now i want to buy new RAM ddr2 ( forgot to mention that, my mobo supports ddr2 memory, not ddr3) from 2 gb but 800mhz speed. Does that mean my RAM will work on 667 mhz speed? Thanks in advance.