Motherboard memory speed compatibility (oc?)

M

Matt11b

New Member
Another MB question. A particular board I am looking at says the memory it supports is..

Support for DDR3 2400(OC)/2133/1866/1600/1333 MHz memory modules

Now, the 2400 (OC), does this mean I put a 2400 module in, then overclock it to that speed or something? Can I just put any 2400 module in it? Thanks!


Matt
 
Which board?

A lot of times you'll see the 'official specification' be listed even though the platform can support higher frequencies. You'd essentially be 'overclocking' to reach those speeds, although they are provided as options within the BIOS.

Also, if you apply XMP/DOCP then the specified profile in the timing table of the RAM will be applied.
 
The memory controller is only officially rated to 2133, at 2400 that may be the RAM's designed frequency, but from an 'official standards' perspective you'd be running the controller out of spec (ie, overclocked).
 
The speed difference between 2133 and 2400mhz is really not noticeable. If 2400 is cheaper then 2133 then get the 2400.
 
Just keep in mind the performance difference between 1600mhz and 2400mhz is very small, only real difference would be in graphic performance if you were using an APU. The performance difference between 2133mhz and 2400mhz is almost non existent even in software designed especially to benchmark memory, there would be no real world benefit between them.
 
The OC means it will have to be overclocked. It also doesnt mean it will neccessarily run at that speed either as beers said its not officially tested to that speed. But like said if 2400 is cheaper get that. If it wont run you will have to underclock it to 2133mhz anyway.
 
tylerjrb said:
The OC means it will have to be overclocked. It also doesnt mean it will neccessarily run at that speed either as beers said its not officially tested to that speed. But like said if 2400 is cheaper get that. If it wont run you will have to underclock it to 2133mhz anyway.
Click to expand...
This. If you use 2400MHz memory, it will run at 2133MHz unless you go into the BIOS and manually raise it to 2400MHz.
 
Use the XMP profile which sets the bootsrap to 125MHz and OC's the ram. Up the voltage a bit on the ram and set the voltage profile to 1.3x for more stability.
 
Jamebonds1 said:
No, you're wrong. RAM speed are not important. Where do you got that? Where is your evidence based on your ridiculous comment? It won't help much. If you're said 2400 are much cheaper than 1600, then they are crappy.

Also you type no sense when you said tiny bit. Pick one!
Click to expand...

Looks like that all makes sense, what I said was that 2400 kits were sometimes cheaper or only a tiny bit more expensive than 1600 kits. The truth is easy to see with a few minutes of searching online.

I did post a link to the memory, if you read my post you can see I have a link for some, Mushkin Blackline 16GB (2 x 8GB) DDR3-2400 CAS11 memory for 80 dollars. If you took the time, which clearly you didn't, then it is clear to see that my statement above is correct. I also think most people would not agree with you that Mushkin memory is crappy, but here's some more:

https://pcpartpicker.com/part/corsair-memory-cmy16gx3m2a2400c11 - 80 dollars
https://pcpartpicker.com/part/gskill-memory-f32400c11d16gxm - 84 dollars

Here is some cas 10 memory, which I'm including an example because many of the benchmarks below were using cas 10 memory:

https://pcpartpicker.com/part/gskill-memory-f32400c10d16gtx - 98 dollars

Maybe you also think Gskill and Corsair make crappy memory too?

The evidence for my factual comment about memory speeds impacting on apu graphics is here:

http://www.tomshardware.com/reviews/memory-bandwidth-scaling-trinity,3419-3.html
http://www.tomshardware.com/reviews/memory-bandwidth-scaling-trinity,3419-4.html
http://www.tomshardware.com/reviews/memory-bandwidth-scaling-trinity,3419-6.html
http://www.eteknix.com/memory-scaling-amd-kaveri-a10-7850k-apu/
http://www.eteknix.com/memory-scaling-amd-kaveri-a10-7850k-apu/7/
http://hexus.net/tech/reviews/cpu/46073-amd-a10-5800k-trinity-needs-faster-ram/
http://www.corsair.com/en/blog/2014/february/understanding-kaveri

I could have links of proof as long as my arm, but I think this is enough. You asked me to backup my statement with proof and I did, now please do the same and show me the memory speed doesn't make much of a difference to apu graphics from 1600 to 2400mhz.
 
Jamebonds1 said:
No, you're wrong. RAM speed are not important. Where do you got that? Where is your evidence based on your ridiculous comment? It won't help much. If you're said 2400 are much cheaper than 1600, then they are crappy.

Also you type no sense when you said tiny bit. Pick one!
Click to expand...

Ram speeds are important with APU's. Other setups, no.
 
You must log in or register to reply here.
Back
Top