Question regarding ram
Posted by MistLavender@reddit | buildapc | View on Reddit | 13 comments
curious in ram
planning to buy,
is there 3200mhz single stick? any capacity?
or it just a 1600mhz x 2 stick only?
and the xmp its consider a overclock? or its just a features of ram?
so answer,
thank you
OpenProfessional1668@reddit
Yes, you can get a single stick of DDR4 @3200MHz.
XMP is considered overclocking.
ViruliferousBadger@reddit
XMP is manufacturer tested speeds guaranteed to work. So not exactly over cloking, per se. Once you go past that, its a different thing.
daanos60@reddit
Xmp/expo is not guaranteed
YetanotherGrimpak@reddit
*ram manufacturer
Any ram speed above the specified on the cpu spec sheet is YMMV. It is possible for an amd cpu, for example, to have such a bad binning that it cannot run ram above cpu baseline, which is 5600mhz, if I'm not mistaken. No, 6000mhz is not the standard, but actually the sweet spot where you can get the most out of the cpu and ram.
Another example is the new core ultra plus cpus that have base ram speed at 7200mhz, even if with 200S boost you can do 8000mhz.
Cpu maker guarantees that speed (amd's 5600 or Intel's 7200). Anything else is ram overclocking, even if you are, in fact, overclocking the cpu IMC.
pythonic_dude@reddit
Base speed is jedec spec that is guaranteed to work on any cpu/mb combo working with that dram version. Xmp is a factory overclock that is tested with only some systems and no company will give you blanket guarantees.
-UserRemoved-@reddit
I'm not entirely sure what you are asking TBH, I believe you are fundamentally misunderstanding RAM specs.
3200 is the memory speed. It doesn't matter if it's 1 stick, 2 sticks, or more all the memory in your PC runs at the same speed.
I don't know what this means. 2 sticks of 3200 memory is still 3200, speed doesn't get halved because you get 2 sticks.
XMP is just a memory profile for what the factory tested the memory to work at in terms of speed and timings.
MistLavender@reddit (OP)
sorry for confuse
I mean is they advertise are 3200mhz, but in "1 stick" only have 1600mhz so if "2 stick" 3200mhz
so i confuse is there a 1 stick RAM that 3200mhz
the XMP I get it.
Vol3n@reddit
You really dont get it. The speed doesnt depend on how many sticks there are.
MistLavender@reddit (OP)
sorry mate,
bit confuse really, on ads from brands label and actual "its appeared in CPU-z and task manager."
YetanotherGrimpak@reddit
It's because it's double data rate (ddr). It's a bit confusing so I would say you should Google it, but in the end it means that the ram works at 2x1600mhz, or 3200mhz. This is irrelevant to the number of ram sticks and the size of said sticks you have on the system. Be it 1 stick or 763 sticks, they will always be 2x1600mhz or 3200mhz
-UserRemoved-@reddit
You can have 1 stick of 3200MT/s memory, any capacity.
If you buy another stick of the same memory, you now have 2 sticks of 3200MT/s memory.
If you buy 2 more sticks, you now have 4 sticks of 3200MT/s memory.
I have no idea where 1600 is coming from. Unless you are trying to figure out actual vs effective data rates, which have nothing to do with the number of RAM sticks.
MistLavender@reddit (OP)
bear with me. :)
bcoz in CPU-z
ddr4-3200 (1600mhz) in 1 stick "slot 2" and same as other "slot 4"
in task manager says speed 3200mhz "2stick"
so i really confuse,
thank you
-UserRemoved-@reddit
That's because DDR stands for double data rate
Speed you see advertised is actually supposed to be MT/s (MegaTransfers per second), but companies like to display it as MHz.
MHz is only supposed to be used to display actual data rate.
Because DDR is double data rate, you take the actual data rate (in this case, 1600MHz) and multiply it by 2 to get the effective data rate (in this case, 3200MT/s).
So your stick saying 3200 (1600MHz) is showing your effective data rate (actual data rate).
CPU-Z is a more in depth monitoring tool, so it will display both. Task manager is a bsic monitoring tool, and only shows effective data rate.