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  Topic Review (Newest First)
08-24-2019 10:07 PM
Nizzen
Quote: Originally Posted by reqq View Post
So these new Gskill Neo3600mhz 14-15-15-35 are not b-die but rather Hynix CJR. You think these are topped out or anything left in the tank on normal voltage <1.5v?
Neo 3800c14 IS b-die. According to:

"G.Skill’s Trident Z Neo DDR4-3800 CL14 8 GB modules (F4-3800C14-8GTZN) are based on Samsung’s 8 Gb B-die memory chips and use a custom PCB. The unbuffered DIMMs come with aluminum heat spreaders as well as RGB LEDs. To set up rather extreme clocks and low latencies, users will need to enable an XMP 2.0 profile. "

https://www.anandtech.com/show/14696...amd-ryzen-3000

So maybe 3600 c14 is b-die too
08-24-2019 02:08 AM
reqq
Quote: Originally Posted by pr0g4m1ng View Post
I have the Trident Z Neo DDR4-3600MHz CL16-19-19-39 1.35V right here. They have CJRs and run are rock stable at 3733 CL16-19-19-39 1.40V 3800 CL16-19-19-39 1.40V didn't boot though. Haven't tried more as of now.
Have you tried lowering the timings?
08-24-2019 01:22 AM
Streetdragon
Quote: Originally Posted by stinger2k View Post
you think? why?
im at like 10W with 1.083V. Just wondering
08-23-2019 06:58 PM
PiCoTTo
Quote: Originally Posted by PiCoTTo View Post
... I want 32GB and due to the Daisy Chain topology of this MB, it must be a 2x16GB kit. I need to decide between these three G.Skill Trident Z RAM kits:

1. Trident Z Neo F4-3600C16D-32GTZNC, 16-19-19-39, which seems to mount Hynix CJR (C-Die) chips. https://www.newegg.com/g-skill-32gb-...82E16820232861 with a price of 259€ ($233)

2. Trident Z RGB F4-3600C17D-32GTZR, 17-19-19-39, B-Die. https://www.newegg.com/g-skill-32gb-...82E16820232575 with a price of 334€ ($301)

3. Trident Z RGB F4-3200C14D-32GTZR, 14-14-14-34, well binned B-Die. https://www.newegg.com/g-skill-32gb-...82E16820232560 with a price of 329€ ($296)
...
When thought I had read enough, still finding valuable documents: "2 CCD Ryzen 3000 CPUs (3900X and 3950X) seem to prefer 4 single rank sticks over 2 dual rank sticks." from https://github.com/integralfx/MemTes...0OC%20Guide.md

Now I must rethink again if I choose 2x16GB or 4x8GB.

Quote: Originally Posted by pr0g4m1ng View Post
I have the Trident Z Neo DDR4-3600MHz CL16-19-19-39 1.35V right here. They have CJRs and run are rock stable at 3733 CL16-19-19-39 1.40V 3800 CL16-19-19-39 1.40V didn't boot though. Haven't tried more as of now.
Trident Z Neo are much more beautiful than Ripjaws IMO. But I'm seeing that 3200C14 B-Die kits give you quite more margin to tweak timings and subtimings, which in some cases could give you notably performance gain. More necessary with DR sticks, as they can't achieve as high frequencies as SR. What processor and MB are you pairing memory with?
08-23-2019 04:18 PM
stinger2k
Quote: Originally Posted by reqq View Post
So these new Gskill Neo3600mhz 14-15-15-35 are not b-die but rather Hynix CJR. You think these are topped out or anything left in the tank on normal voltage <1.5v?
CJR do it well <1.5V but not with Timings as B-Die do... (specially Latency at higher clocks)

On best performance i would ever get the B-Dies with better Binning, because of that i mentioned...
08-23-2019 04:14 PM
stinger2k
Quote: Originally Posted by Streetdragon View Post
over 20 watt on the SOC? looks high
you think? why?
08-23-2019 12:53 PM
pr0g4m1ng I have the Trident Z Neo DDR4-3600MHz CL16-19-19-39 1.35V right here. They have CJRs and run are rock stable at 3733 CL16-19-19-39 1.40V 3800 CL16-19-19-39 1.40V didn't boot though. Haven't tried more as of now.
08-23-2019 09:16 AM
reqq So these new Gskill Neo3600mhz 14-15-15-35 are not b-die but rather Hynix CJR. You think these are topped out or anything left in the tank on normal voltage <1.5v?
08-23-2019 05:55 AM
gupsterg
Quote: Originally Posted by pr0g4m1ng View Post
I am looking for a 32GB Ram Kit for a Ryzen 3000/ x570 System.

I am aiming for DDR4 3600 CL16 and am torn between these two kits:

1. Trident Z Neo DDR4-3600MHz CL16-19-19-39 1.35V 32GB (2x16GB): https://www.gskill.com/product/165/3...00C16D-32GTZNC
2. Ripjaws V DDR4-3200MHz CL14-14-14-34 1.35V 32GB (2x16GB): https://www.gskill.com/qvl/165/184/1...C14D-32GVK-Qvl

According to this review both should be about equally fast @ stock: https://www.techpowerup.com/review/a...nchmark/4.html

However, I'd really like to go to 3600Mhz and the Trident Z Neo is a bit cheaper (about 35-40€). So I wonder: What's the probability that you can reach DDR4-3600MHz CL16-19-19-39 1.35V or better with the Ripjaws V?

@gupsterg : What voltage?
My F4-3200C14D-32GVK 3600MHz C15 1T (Gear Down Mode: Off) @ 1.355V, not tested 3733MHz C16 much at all TBH, 3800MHz C16 (Gear Down Mode: On) 1.405V.
08-23-2019 03:14 AM
Streetdragon
Quote: Originally Posted by stinger2k View Post
4x16 GB 3800CL16 IF 1900 per BCLK OC + UV @1,3Vcore

3800 1:1 has trouble to train memory before boot, does anyone know suggestions?
over 20 watt on the SOC? looks high
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