Do you need high speed memory when overclocking

[AstroBenny]

So I watched Linus' overclocking guide and he said that when overclocking, you are lucky to get more than 1600Mhz/1866Mhz on the RAM speed, so why do people buy speeds higher than 1600Mhz/1866Mhz when overclocking?

 

Cheers,

Ben

[Godlygamer23]

One, they might feel they need it(most people don't). Two, they may have needs that justify higher clocked RAM.

[Lays]

No, but it does help in benchmarks.

[AstroBenny]

No, but it does help in benchmarks.

But how could it improve benchmarks if you have to run the ram at 1600Mhz anyway?

And how come Jayztwocents had ram running at 2666Mhz with a 4.5Ghz Overclock on his 5960x in skunkworks?

[Lays]

But how could it improve benchmarks if you have to run the ram at 1600Mhz anyway?

And how come Jayztwocents had ram running at 2666Mhz with a 4.5Ghz Overclock on his 5960x in skunkworks?

 

 

Oh I see what you meant before.

 

No you can run high mhz ram whilst overclocking your CPU, it just may take a bit more voltage to the CPU or system agent voltage, or a bit more fine tuning with voltages.

I ran 3000 mhz DDR4 with a 4.75 ghz overclock on my 5820k the other day for benchmarking, worked fine.  Usually takes a bit more knowledge of what you're doing.

 

Not to be rude to Linus or anything, but when it comes to overclocking I don't always take his word for it.  I'd much rather trust myself and my knowledge of overclocking, or go to my friends that do it as well, like @ProKoN and @Jumper118 , and a few others.

[Jumper118]

Oh I see what you meant before.

 

No you can run high mhz ram whilst overclocking your CPU, it just may take a bit more voltage to the CPU or system agent voltage.

I ran 3000 mhz DDR4 with a 4.75 ghz overclock on my 5820k the other day for benchmarking, worked fine.  Usually takes a bit more knowledge of what you're doing.

 

Not to be rude to Linus or anything, but when it comes to overclocking I don't always take his word for it.  I'd much rather trust myself and my knowledge of overclocking, or go to my friends that do it as well, like @ProKoN and @Jumper118 , and a few others.

from linus's view, he needs things to be super reliable and work all the time so he tends to use things that are in spec or very mildly overclocked, which is understandable. its ok to save a few seconds on a video render, but if he had to spend a day tweaking it when it fails, then he will loose loads of money.

[Lays]

from linus's view, he needs things to be super reliable and work all the time so he tends to use things that are in spec or very mildly overclocked, which is understandable. its ok to save a few seconds on a video render, but if he had to spend a day tweaking it when it fails, then he will loose loads of money.

 

 

Yeah for sure, in his line of work better safe than sorry. So it seems he usually gives more reliable & safe info, rather then risky things or things that are more difficult for the average consumer to figure out.

[harbo99]

So I watched Linus' overclocking guide and he said that when overclocking, you are lucky to get more than 1600Mhz/1866Mhz on the RAM speed, so why do people buy speeds higher than 1600Mhz/1866Mhz when overclocking?

 

Cheers,

Ben

some apu's does benefit from faster memory 

[AstroBenny]

Yeah for sure, in his line of work better safe than sorry. So it seems he usually gives more reliable & safe info, rather then risky things or things that are more difficult for the average consumer to figure out.

But if I have 1866Mhz ram and I Overclock to 4.5ghz on my i5 4690K It isn't as simple as just enabling xmp,

Right?

[Lays]

But if I have 1866Mhz ram and I Overclock to 4.5ghz on my i5 4690K It isn't as simple as just enabling xmp,

Right?

 

 

Yes.

 

But say you need 1.25 volts for 4.5 ghz with 1866 mhz ram, it may take 1.26v for it to be stable with 2600 mhz ram.

[SkilledRebuilds]

But if I have 1866Mhz ram and I Overclock to 4.5ghz on my i5 4690K It isn't as simple as just enabling xmp,

Right?

When OC'ing via the Multiplyer - the ram will stay at its rated speed.

However when BCLK OC'ing, the Ram speed goes up with each increment you add, this is why some people buy faster kits.

So they declock their memory one step (2400mhz>1866Mhz) then up the BCLK, which ups the ram speed (as you declocked it, its under the rated speed, even with your CPU OC)

If you used 1866Mhz ram, and didnt declock it to 1600mhz, and added BCLK additions, the ram may not like being pushed higher than its rated speed of 1866mhz.

 

My memory is running at 2400Mhz, I just used XMP, Im not OC'ing my CPU so my memory can stay at 2400Mhz.

Some boards don't like such high speed memory and some do require added voltage to the "CPU System Agent' to maintain Ram speeds so high.

My H-97 board also will limit ram speed to 1600mhz (and didnt allow XMP to work @ 2400mhz) (I think all H boards do this) so I went with the Z-97 so I can have full speed memory.