RAM 2666 C16 vs 3000 CL 15

[Error404]

I'm building a cheap computer for a friend, I was looking for RAM in amazon and I saw two options to buy, a 3000Mhz CL15 RAM and a 2666Mhz CL16 ram. I'm buying an Intel 10100 and the maxium speed that supports is 2666Mhz with a gigabyte H410M-H.

 

The question is, since the first ram will run at 2666Mhz, would this ram be effectively a 2666Mhz CL15 in my system?. Is the first one better than the second?

 

I'm aware I can buy the first one and turn on XMP, but I just want to know about the stock behavior.

[SpiderMan]

3 minutes ago, Error404 said:

Is the first one better than the second?

Yes, you are correct, the 3000Mhz CL15 RAM will be faster than the 2666Mhz CL16 RAM. 

[TetraSky]

Get whichever is cheaper, doesn't matter as much on Intel. The 3000 cl15 is certainly faster by default, but if you won't be able to run it at that speed, you will probably be able to get tighter timing, like 2666 CL14 on the 3000Mhz kit.

 

Also, from where did you copy your text?

 

It's near invisible on the Dark Theme.

[Quickstrike]

The mobo does support faster speeds with XMP

 

[Error404]

4 minutes ago, TetraSky said:

Get whichever is cheaper, doesn't matter as much on Intel. The 3000 cl15 is certainly faster by default, but if you won't be able to run it at that speed, you will probably be able to get tighter timing, like 2666 CL14 on the 3000Mhz kit.

 

Also, from where did you copy your text?

 

It's near invisible on the Dark Theme.

Notepad++, ups. Also the 2666 is CL16 not CL14

[mahyar]

4 minutes ago, TetraSky said:

It's near invisible on the Dark Theme.

no its not

[mahyar]

generally higher speed + lower latency is better but the max that 10100 supports id 2666 but if you get 3000,hz jit you will be able to tighten the timmings 

[Error404]

6 minutes ago, CommanderAlex said:

Yes, you are correct, the 3000Mhz CL15 RAM will be faster than the 2666Mhz CL16 RAM. 

but will it be a 2666 CL15?

[TetraSky]

3 minutes ago, Error404 said:

Notepad++, ups. Also the 2666 is CL16 not CL14

I meant, taking the 3000 cl15 kit and running it at lower speed with a tighter timing of cl14, which is entirely possible to do.

 

3 minutes ago, mahyar said:

no its not

It's called editing, it was, which is clearly seen in my screenshot...

[Error404]

1 minute ago, TetraSky said:

I meant, taking the 3000 cl15 kit and running it at lower speed with a tighter timing of cl14, which is entirely possible to do.

Oh, i didn't know that you can tight the latency of ram. I thought it was set.

[TetraSky]

10 minutes ago, Error404 said:

Oh, i didn't know that you can tight the latency of ram. I thought it was set.

Ah wait, no, nevermind. Sorry for getting your hopes up there.

You're on a non-k Intel CPU. You're limited to whatever the SPD of the RAM stick says and shouldn't be able to manually adjust it (If you didn't buy this system yet, consider switching to AMD or something if you want more freedom on that side of things).

Depending on the SPD on the RAM, it might be possible that the 3000Mhz RAM will default to a tighter timing by itself, just like it might not. Would need to know the specific model.

[wkdpaul]

* thread moved to the CPUs, Motherboards, and Memory section *

[Error404]

17 minutes ago, TetraSky said:

Ah wait, no, nevermind. Sorry for getting your hopes up there.

You're on a non-k Intel CPU. You're limited to whatever the SPD of the RAM stick says and shouldn't be able to manually adjust it (If you didn't buy this system yet, consider switching to AMD or something if you want more freedom on that side of things).

Depending on the SPD on the RAM, it might be possible that the 3000Mhz RAM will default to a tighter timing by itself, just like it might not. Would need to know the specific model.

Im between this two:

3000 Mhz CL15

https://www.amazon.com/Corsair-Vengeance-3000MHz-Desktop-Memory/dp/B0134EW7G8/ref=sr_1_2?dchild=1&keywords=vengeance+3000&qid=1606323013&sr=8-2

 

2666 Mhz CL16
https://www.amazon.com/Corsair-Vengeance-2666MHz-Desktop-Memory/dp/B0123ZC44Y/ref=sr_1_2?crid=1KD3VEGQDG3Y3&dchild=1&keywords=vengeance+2666&qid=1606322999&sprefix=vengence%2Caps%2C293&sr=8-2

 

Don't worry about the stock or price

[TetraSky]

21 minutes ago, Error404 said:

Im between this two:

3000 Mhz CL15

https://www.amazon.com/Corsair-Vengeance-3000MHz-Desktop-Memory/dp/B0134EW7G8/ref=sr_1_2?dchild=1&keywords=vengeance+3000&qid=1606323013&sr=8-2

 

2666 Mhz CL16
https://www.amazon.com/Corsair-Vengeance-2666MHz-Desktop-Memory/dp/B0123ZC44Y/ref=sr_1_2?crid=1KD3VEGQDG3Y3&dchild=1&keywords=vengeance+2666&qid=1606322999&sprefix=vengence%2Caps%2C293&sr=8-2

 

Don't worry about the stock or price

The SPD on both of these is the same, 2133MHz 15-15-15-36.

https://www.corsair.com/ca/en/Categories/Products/Memory/VENGEANCE-LPX/p/CMK16GX4M2B3000C15#tab-tech-specs

https://www.corsair.com/ca/en/Categories/Products/Memory/VENGEANCE-LPX/p/CMK16GX4M2A2666C16#tab-tech-specs

 

 

I don't remember much on how Intel handle memory overclocking on non-k CPUs with H series chipset.

If someone else can chime in on that, that'd be great. But from what I can remember, you should still be able to at least set the XMP profile.

The 3000 kit should have two distinct XMP profile, one that's native and is 1.2V, and the other which might not be on your platform and is 1.35V (which is the one that goes to 3000 cl15)

 

My best guess here is that they will both run at 2666 cl16, so just get whichever is cheaper. Tighter timing barely affect performances on Intel anyway.