I think the CPU does a better job
ACPU has multimedia instructions called
Depending on what your motherboard can handle, all the RAM (regardless of clockspeed) will clock to the same speed.
That condition occurs when the motherboard clock settings are not set properly for the processor.
Your CPU's clock sped can be adjusted from the BIOS, but it is not recommended to do so because it can cause permanent damage to the CPU, RAM or the motherboard due to various reasons like overheating, unsupported clock speed etc.
motherboard
No the system clock is built into the motherboard.
the clock on a motherboard ensures that all the devices run in sync
you go in to BIOS. How ? when you start up you PC Before windows bootup you press delete or f11-f9 it differs for every motherboard but Del is the most common. And you find it in one of the settings most likley under advanced bios or frequency.
Your motherboard might be able to 'clock back' the DDR400 to DDR333. This means that the DDR400 ram will reduce it's clock speed to DDR333 to be compatible. Not all motherboards support this though.
the internal data path the address bus the clock speed the cache
You can but your CPU will probably not go as fast as it should. The motherboard has a system crystal that has a clock. The speed of the clock is called the frontside bus speed. A CPU uses a multiplier to make the CPU go faster. For instance if the frontside bus is 100MHz and the CPU has a multipier of 5, then the CPU will operate at 500MHz. So, if you use a CPU that is larger than what the motherboard requires the front side bus, which is dictated by the type of motherboard may be slower that what your CPU is supposed to see so it will run slower. Hope this helps, if you have any questoins leave it on my message board.