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IDKFA

3900X and RAM speed / Timings

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Posted · Original PosterOP

I plan to buy the 3900X

I just bought (last week) 4000Mhz CL18 B-die RAM. 
I am wondering if I should return this and buy (for $20 less) 3600Mhz CL16 B-die RAM. 



Thoughts? 

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1 minute ago, IDKFA said:

Thoughts? 

Why not just fine tune it yourself to 3600mhz/CL14?

 

Also Samsung B-Die has been phased out, it's not that simple keep finding it to buy brand new anymore.


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CPU:  Intel Core i9 9900K @4.7ghz  |~| Cooling: Noctua NH-U12P |~|  MOBO: Asus Z390M ROG Maximus XI GENE |~| RAM: 32gb 3200mhz CL16 G.Skill Trident Z RGB |~| GPU: nVidia TITAN V  |~| PSU: Corsair RM850X 80Plus Gold |~| Boot: WD Black M.2 2280 500GB NVMe |~| Storage: 2X4TB HDD 7200rpm Seagate Iron Wolf + 2X2TB SSD SanDisk Ultra |~| Case: Cooler Master Case Pro 3 |~| Display: ASUS ROG Swift PG348Q 3440x1440p100hz |~| OS: Windows 10 Pro.
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Posted · Original PosterOP
1 minute ago, Princess Luna said:

Why not just fine tune it yourself to 3600mhz/CL14?

 

Also Samsung B-Die has been phased out, it's not that simple keep finding it to buy brand new anymore.

Will I be able to do that OK? (never underclocked RAM)

It's easy to find B-Die here in the UK - OCUK bin for it. 
This is what I bought. https://www.overclockers.co.uk/team-group-xtreem-8pack-edition-16gb-2x8gb-ddr4-pc4-32000c18-4000mhz-dual-channel-kit-black-my-098-tg.html

Thinking of swapping it for this. https://www.overclockers.co.uk/team-group-dark-pro-8pack-edition-16gb-2x8gb-ddr4-pc4-28800c16-3600mhz-dual-channel-kit-black-my-08q-tg.html

Because of this image. 

 

rrrerererereer.PNG

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2 minutes ago, IDKFA said:

Because of this image. 

With a kit rated that high on XMP you can pretty much set it to whatever you want by manually tuning it, including that 3733mhz clock at a lower timing of CL16 likely, the higher the rating of the chip means the better it is at overclocking, and overclocking is anything past CPU stock value which I think is 2933mhz on Zen 2 still.


Workstation Rig:
CPU:  Intel Core i9 9900K @4.7ghz  |~| Cooling: Noctua NH-U12P |~|  MOBO: Asus Z390M ROG Maximus XI GENE |~| RAM: 32gb 3200mhz CL16 G.Skill Trident Z RGB |~| GPU: nVidia TITAN V  |~| PSU: Corsair RM850X 80Plus Gold |~| Boot: WD Black M.2 2280 500GB NVMe |~| Storage: 2X4TB HDD 7200rpm Seagate Iron Wolf + 2X2TB SSD SanDisk Ultra |~| Case: Cooler Master Case Pro 3 |~| Display: ASUS ROG Swift PG348Q 3440x1440p100hz |~| OS: Windows 10 Pro.
Personal Use Rig:
CPU: Intel Core i7 8700 @4.45ghz |~| Cooling: Cooler Master Hyper 212X |~| MOBO: Gigabyte Z370M D3H mATX|~| RAM: 16gb DDR4 3333mhzCL16 G.Skill Trident Z |~| GPU: nVidia Founders Edition GTX 1080 Ti |~| PSU: Corsair TX650M 80Plus Gold |~| Boot:  SSD WD Green M.2 2280 240GB |~| Storage: 1x3TB HDD 7200rpm Seagate Barracuda + SanDisk SSD Plus G26 480gb |~| Case: Cooler Master Case Pro 3 |~| Display Setup: Acer X34 3440x1440p100hz |~| OS: Windows 10 Pro.
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Posted · Original PosterOP
2 minutes ago, Princess Luna said:

With a kit rated that high on XMP you can pretty much set it to whatever you want by manually tuning it, including that 3733mhz clock at a lower timing of CL16 likely, the higher the rating of the chip means the better it is at overclocking, and overclocking is anything past CPU stock value which I think is 2933mhz on Zen 2 still.

Cool, I'll just hold on to it then, bring it down to 3733Mhz and tighten the timings then. 

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21 minutes ago, IDKFA said:

I plan to buy the 3900X

I just bought (last week) 4000Mhz CL18 B-die RAM. 
I am wondering if I should return this and buy (for $20 less) 3600Mhz CL16 B-die RAM. 

Naa, just keep it, clock it down and play a bit with the settings.

Its better to have better RAM and not utilize it fully than have slow ram and need the frequency...


"Hell is full of good meanings, but Heaven is full of good works"

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Do you have any use cases that utilize memory speeds up to 4000MHz? What are some ram intensive tasks you do?


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

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Draws 400 watts under max load, for reference.

 

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1 minute ago, fasauceome said:

Do you have any use cases that utilize memory speeds up to 4000MHz? What are some ram intensive tasks you do?

RAM speed will improve the performance of the CPU.  If he goes as high as 4000MHz there will be a regression, but if he stays at 3733MHz or maybe gets a CPU that can run 3800MHz at 1:1 he'll get that last bit of performance.  And if he can get the CAS latency down that'll just keep on stacking performance on performance.  

 

And while I understand it's never something you'd notice without metrics -- it's nice to know you have a tuned system running at peak performance.  


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Posted · Original PosterOP
24 minutes ago, fasauceome said:

Do you have any use cases that utilize memory speeds up to 4000MHz? What are some ram intensive tasks you do?

Not per say, but the RAM was on offer so with Ryzen 3000 on the horizon (and talks of faster RAM being better) I just grabbed it.

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Not to hijack this topic but I feel like I'm in a very similar situation.

 

In light of Zen 2 I am preparing a system upgrade and managed to pick up some G.Skill 4000CL19 at a very reasonable price and was wondering if it's worth sticking with these and downclocking much like the OP?

 

 

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