I am using ASUS K46CB laptop(its very old with 4gb ram, so i wanna speed it up).My older brother has another computer which had a PC3-10700(667MHz) 4gb ram card and i want to put it inside my computer. Currently, my laptop has a 4gb PC3-12800 (800 MHz). Would my laptop be compatible with the PC3-10700(667Mhz)?