There is no correct answer since the result changes with the motherboard, CPU and version BIOS.
There is usually a single digit overall speed gain so you find folk chasing higher memory speeds with little to show in the results.
If I wade through your post I think this is your question:
"how can I see the change since CPU-Z doesn't show any change in CPU?"
You would run a benchmark program.
What happens if I install RAM with higher speed than the speed CPU can support, provided the motherboard can recognize and run the RAM at full speed? I looked for the answer on many sites but failed to find what I want to know.
Suppose that the CPU can support 1600 RAM, and 2133 RAM is installed which mainboard can recognize and run at full speed without changing anything in BIOS.
- Some said the motherboard will adjust the timings for other components to match the frequency of the 2133 RAM. In this case, it will automatically OC (.......). If so, how can I see the change since CPU-Z doesn't show any change in CPU?
- Some said the motherboard will only run at what the CPU can support in spite of recognizing the RAM and showing the correct speed in CPU-Z.
In both cases, the only thing change in CPU-Z is the memory and SPD tabs. What happens exactly and how can I tell? How about integrated graphic processor? Does it have any effect, and how can I tell?
As I was so confused to read different answers, I decided to ask. I'm sorry if this is a basic question that I should know.
PS: I know that normal use doesn't see the difference.