Need help with picking ram

[Sir_damian]

Ok, I'm building a desktop computer, and I have already picked out few parts for it. Right now I came into a problem which I never heard of before. I picked a cpu which is intel core i7 8700k coffee lake 6 core cpu, I went on intel site and its states that cpu would only work with ddr4 2666 ram. Now I already try reach out to intel about this but they said it's only work with that type of ram. Now I had watch people use the same motherboard and cpu and uses a different kind of ram like ddr4 3200. So my question is can I uses a different ram then 2666? I actually just wanna put in ddr4 3200 thou

[Mister Woof]

Ram speed is going to depend on what your motherboard supports.

 

Everything past 2666 is considered overclocking, but they will have xmp profiles you just click in bios to get it to work.

 

3200 on a Z board should be fine and will probably with work with just xmp.

 

If you are really concerned look at the QVL list on your motherboards website and pick the right one.

 

Higher speeds have lesser yields and might need tweaks to work

[Turtle Rig]

7 minutes ago, Sir_damian said:

Ok, I'm building a desktop computer, and I have already picked out few parts for it. Right now I came into a problem which I never heard of before. I picked a cpu which is intel core i7 8700k coffee lake 6 core cpu, I went on intel site and its states that cpu would only work with ddr4 2666 ram. Now I already try reach out to intel about this but they said it's only work with that type of ram. Now I had watch people use the same motherboard and cpu and uses a different kind of ram like ddr4 3200. So my question is can I uses a different ram then 2666? I actually just wanna put in ddr4 3200 thou

There is no real world performance difference between a 2400 and a 3200Mhz.  In benchmarks it will show a difference tho.

[Mister Woof]

2 minutes ago, Turtle Rig said:

There is no real world performance difference between a 2400 and a 3200Mhz.  In benchmarks it will show a difference tho.

My understanding is that there is a difference, but it depends on your workload.

 

In games, the ones that are highly CPU limited and not bound by GPU, ram speed does give you significantly measurable results.

 

If it's perceptible, that's another question.

 

 

[Turtle Rig]

2 minutes ago, Plutosaurus said:

My understanding is that there is a difference, but it depends on your workload.

 

In games, the ones that are highly CPU limited and not bound by GPU, ram speed does give you significantly measurable results.

 

If it's perceptible, that's another question.

 

 

I agree and disagree lol...  So if you get MSI mobo and special RAM and overclock to 5500Mhz means more frame rate ?  I say no the framerate will be the same.  If there is a difference as you say from 2400 and 3200Mhz ,, Can you just imagine what 4500 or 5000Mhz will bring youl  Nothing!!!  Also personally I would go for tighter timings then a higher Mhz speed. 

[Mister Woof]

1 minute ago, Turtle Rig said:

I agree and disagree lol...  So if you get MSI mobo and special RAM and overclock to 5500Mhz means more frame rate ?  I say no the framerate will be the same.  If there is a difference as you say from 2400 and 3200Mhz ,, Can you just imagine what 4500 or 5000Mhz will bring youl  Nothing!!!  Also personally I would go for tighter timings then a higher Mhz speed. 

I did say that the yields decrease as you go higher in ram speed.

 

But for example with a very high end GPU at 1080p you will get significantly extra frames from 2133 to 3200 with a fast cpu, but going from 3200 to 4000+ isn't going to do as much if at all for gaming.

[noobbuilder]

Just to add here i have the 8700k and vengence lpx 3000 cas 15  ram and i love it. I would guess you'd only gain 1-5% max on 2666 vs 3200 (but again just a guess) benchmarking.

[Turtle Rig]

4 minutes ago, Plutosaurus said:

I did say that the yields decrease as you go higher in ram speed.

 

But for example with a very high end GPU at 1080p you will get significantly extra frames from 2133 to 3200 with a fast cpu, but going from 3200 to 4000+ isn't going to do as much if at all for gaming.

Well said my friend. 

[xg32]

29 minutes ago, Sir_damian said:

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I wouldn't worry too much about ram speed on intel, but i do recommend 3200 cl 16, it's around the same price anyway. the jump on cpu intensive games from 2400-3200 is about 5%, 3200-4000 is about 3% in VERY SELECTIVE scenarios, but i do see a difference in shadow of war, farcry5, and ACO. It's likely not worth the 100usd difference going from 3200 to 4000.

 

For ryzen however, 3600-4000 if you can, especially with zen 2 coming out.

[Dedayog]

RAM speed does matter, in a few frames to a few more frames..  There are videos like this all over that compare various speeds, and on average faster RAM brings more FPS.  How much and how much it's worth to you... that's your call.