Best 2 x 16Gb RAM for a 5950X

[Guest2]

awesome, thanks.

Do you mind me asking what settings you have on your RAM as an indicator ? (Voltage, all the timings, etc? )

Sure. 1.5V DRAM

Those numbers @Guest2 are pretty poorly optimised, the write speed is appalling unless that's just a Ryzen thing?

I'm running some of these now: BL2K16G36C16U4B Crucial 2x16GB Single Rank.

Some initial tests:

3600-C15-1.28V
3800-C16-1.31V
4000-C16-1.34V

After some optimisation I'm now at 16-18-18-38, with very tight sub-timings, generating the following on a 9900K with 1.35V (average of 5 runs as they vary a few % run to run):

Read: 56.6GB/sec
Write: 57.8GB/sec
Copy: 53GB/sec
Latency: 39.6ns

These sticks seem to respond well with voltage, so I'm sure 3800 C14 is also possible but as I'm not looking for absolute peak performance 4000/C16 at 1.35V seems solid enough.

I recommend using: https://github.com/integralfx/MemTestHelper/blob/master/DDR4 OC Guide.md

Yes, its a Ryzen thing specific to the single CCX on the 5800X
Intel is totally different and the latency is always going to be lower.
Mr Pils did answer why in this thread somewhere - ttps://www.overclockers.co.uk/forums/threads/8-pack-memory-range-growing-say-hello-to-8-pack-ripped-edition-32gb-kits.18885405/page-59
I wont tag him, he's probably getting annoyed at me tagging him
He helped me and others with specific timings for Ryzen and RAM in that thread. All the answers in there

 

[Doug2507]

I've hunted high and low for the 2x16 3800c14 neo but none to be found. Ended up buying an open box set of the same but quad kit for mucho cheapness. Wonder if they're @OC2000 (SMT off ) old set?

I can't run higher than 3733 right now anyway, I know my 3600c16 sticks will no problem but with a new cpu, it sure if it's cpu limitation or 3102 bios. Have managed to get 4 sticks at 1t though which is pretty epic for 3733!

 

[OC2000]

I've hunted high and low for the 2x16 3800c14 neo but none to be found. Ended up buying an open box set of the same but quad kit for mucho cheapness. Wonder if they're @OC2000 (SMT off ) old set?

From US? I just got the refund a week ago. I could get all 4 sticks to run at XMP with the latest 3003 BIOS for the Asus Dark Hero. Didn't try tightening them though. 2 stick ran at CL14 13 13 13 with tight secondary and Gear Down disabled.

I've just ordered a Ram block, so won't be sending these back lol

Thanks

 

[Doug2507]

DE.

(That's your answer for the other question BTW. )

 

[FreeStream]

Yes, its a Ryzen thing specific to the single CCX on the 5800X
Intel is totally different and the latency is always going to be lower.
Mr Pils did answer why in this thread somewhere - ttps://www.overclockers.co.uk/forums/threads/8-pack-memory-range-growing-say-hello-to-8-pack-ripped-edition-32gb-kits.18885405/page-59
I wont tag him, he's probably getting annoyed at me tagging him
He helped me and others with specific timings for Ryzen and RAM in that thread. All the answers in there

Ah fair enough, reading up on it AMD decided to half the write bytes/cycle to save transistors/power given client writes are apparently low compare to reads! It’s then “hidden” by dual CCDs as it has two links to the IO chip.

I guess you spent some time tweaking all the sub-timings?

Just done a very dirty test with my kit, booted OK and did some MT86 at 3800-C14, 1.425V.

Either way after shelling out for a 5950X giving it some decent ram doesn’t seem too unreasonable!

 

[Guest2]

Ah fair enough, reading up on it AMD decided to half the write bytes/cycle to save transistors/power given client writes are apparently low compare to reads! It’s then “hidden” by dual CCDs as it has two links to the IO chip.

I guess you spent some time tweaking all the sub-timings?

Just done a very dirty test with my kit, booted OK and did some MT86 at 3800-C14, 1.425V.

Either way after shelling out for a 5950X giving it some decent ram doesn’t seem too unreasonable!

Sub timings yes (not much time though really) Turn around timings are all left on auto

 

[HRL]

Either way after shelling out for a 5950X giving it some decent ram doesn’t seem too unreasonable!

Am I right in thinking then that the £299 kit from OCUK is currently the best that I can get for my 5950X build?

Gutted it’s £100 dearer than over Christmas but such is life these days unfortunately.

 

[FreeStream]

Am I right in thinking then that the £299 kit from OCUK is currently the best that I can get for my 5950X build?

Gutted it’s £100 dearer than over Christmas but such is life these days unfortunately.

Honestly? Having just spend £140 on a 32GB kit that probably does 3600C14 and does do 4000C16 at 1.35V, the thought of spending more than two times that seems utterly daft, even if they are one of the "best" kits on the market. £200 seemed reasonable, £300 is a rip off.

The probability is very good that every £300 kit you could ever buy will do very tight timings at high speeds, e.g. C14 at 3800 with 1.4V very easily with minimum effort.
The probability is lower that every BL2K16G36C16U4 kit probably won't do C14 at 3800 with 1.4V, but might get pretty close with some effort.

You could actually buy two of my kits and sell the worse one and still be better off!

After all, we are on an overclockers forum, and the whole idea with overclocking is to take a "cheap" component and make it run as fast as the more expensive ones.

So ultimately:

Option A) Buy the cheap kit, spend some time tweaking, find they overclock satisfactorily. £160 saved.
Option B) Buy the expensive kit, spend less time tweaking.

Although again, you might end up spending as much time tweaking Option B due to Ryzen's memory 'quirks' (this is just an observation!)

 

[Guest2]

Honestly? Having just spend £140 on a 32GB kit that probably does 3600C14 and does do 4000C16 at 1.35V, the thought of spending more than two times that seems utterly daft, even if they are one of the "best" kits on the market. £200 seemed reasonable, £300 is a rip off.

The probability is very good that every £300 kit you could ever buy will do very tight timings at high speeds, e.g. C14 at 3800 with 1.4V very easily with minimum effort.
The probability is lower that every BL2K16G36C16U4 kit probably won't do C14 at 3800 with 1.4V, but might get pretty close with some effort.

You could actually buy two of my kits and sell the worse one and still be better off!

After all, we are on an overclockers forum, and the whole idea with overclocking is to take a "cheap" component and make it run as fast as the more expensive ones.

So ultimately:

Option A) Buy the cheap kit, spend some time tweaking, find they overclock satisfactorily. £160 saved.
Option B) Buy the expensive kit, spend less time tweaking.

Although again, you might end up spending as much time tweaking Option B due to Ryzen's memory 'quirks' (this is just an observation!)

Logic is floored. My 3600 CL16 2x16GB kit that was £240 is running at the same speeds as kits that are £400+
Some of those £400 kits may run at speeds some £600 kits cost

Supply and demand will dictate price increases / decreases as now see the CL16 3600 is £300. Most people must think its good, hence it goes up in cost
If people don't want it, either buy some cheaper RAM that may not do the speeds you are looking for, or spend £400 on the more expensive stuff that will

 

[FreeStream]

Logic is floored. My 3600 CL16 2x16GB kit that was £240 is running at the same speeds as kits that are £400+
Some of those £400 kits may run at speeds some £600 kits cost

Supply and demand will dictate price increases / decreases as now see the CL16 3600 is £300. Most people must think its good, hence it goes up in cost
If people don't want it, either buy some cheaper RAM that may not do the speeds you are looking for, or spend £400 on the more expensive stuff that will

I think that is what I said, but at-least that is what I thought I said

Theoretically, as you say, the likelihood of getting a really good kit goes up the more you spend, but equally, that doesn't preclude cheaper kits getting un-noticably close for a fraction of the cost.

Ultimately depends on where someone places the VFM.

 

[OC2000]

DE.

(That's your answer for the other question BTW. )

worked it out. Thanks mate.

 

[Guest2]

I think that is what I said, but at-least that is what I thought I said

Theoretically, as you say, the likelihood of getting a really good kit goes up the more you spend, but equally, that doesn't preclude cheaper kits getting un-noticably close for a fraction of the cost.

Ultimately depends on where someone places the VFM.

You sort of did actually. Yeh, cheaper kits *may* get the results you're looking for or maybe not.
It also deopends how you view 'cheap' To me the £240 kit was cheap, a £400 was expensive and I wanted to try for DDR 3800, CL14. To someone else, i'm sure £400 is cheap

 

[Doug2507]

worked it out. Thanks mate.

 

[Cooler running]

Well I’ve scoured high and low and can’t find these or something similar anywhere.

Anyone ever spotted these in the wild? Or an OCUK equivalent?

As others have said, I believe it's the same B-Die chips under the heat spreader that you'd find in the 8 pack RAM. They've just taken RAM which is:

https://www.overclockers.co.uk/team...00c16-3600mhz-dual-channel-kit-my-002-8p.html

And put upped the voltage and put a more aggressive factory XMP profile on it.

 

[HRL]

Think you’re probably right. I’ve had a pack sitting unopened since Jan, still waiting for a 5950X to turn up unfortunately.

 

[Joxeon]

Think you’re probably right. I’ve had a pack sitting unopened since Jan, still waiting for a 5950X to turn up unfortunately.

By the time it arrives the 6950X will only be a few months off release the way things are going.

 

[HRL]

By the time it arrives the 6950X will only be a few months off release the way things are going.

Indeed, then imagine the wait for those if the current situation is anything to go by.

I’m done with PC kit now for a few years anyway. Just bought a new home so that’s where my money will be going for the next few years.

The 5950X is to replace my 2700X PC that my kids will inherit once mine finally turns up.

 

[spolsh]

A little review on the 3600 C14 kit :

https://play3r.net/reviews/memory/teamgroup-ripped-edition-ddr4-3600-cl14-review/

TL/DR : Nice money no obstacle option but with caveats.

 

[Simpampum]

From looking around before the g.skill 3800 cl14 seemed to be the fastest ‘base spec’ 2x16gb you can buy but I can’t vouch for infinity clock or timings. That is with a voltage of 1.5 mind, so perhaps little headroom to push it further.

Probably just well binned versions of the same batch of chips from ‘lower ranked’ sticks.

For many PC users, this is the go-to solution.

 

[Scarrrrrface]

Looking for some B-die for a new 5950X build.

Got to be 2 x 16Gb sticks but what’s the fastest and tightest RAM I can get away with on a Strix X570-F Gaming mobo?

Loved the 8Pack kit I’ve used for 2 years on my 2700X but I’m a little out of touch with RAM right now but gather the new Ryzen’s love good RAM as much as Zen+.

yeah but i do not think these can run with FCLK1900 which makes it pointless. I bought the 3600CL14 and they do not even boot with 3800/1900IF to keep the 1:1 ratio so not sure what these 3800CL14 ones are about. I would be very interested for someone with a 5950x (and not 3000 series) to confirm if they can use XMP with 1900 infinity fabric.