How they differ - comparison between G.Skill Trident Z5 memory sets (F5-6000J3040G32GX2-TZ5RK vs F5-6400J3239G32GX2-TZ5RK).

[Lockheed Martin]

Hello. I'm new to this forum and this is my first post (and thread). Apologies in advance if I haven't found a thread with the same (or twin) problem. In such a situation, I ask the moderator to attach my post to the appropriate thread.

The sets I'm talking about are:
1. F5-6000J3040G32GX2-TZ5RK
https://www.gskill.com/product/165/371/1649234977/
DDR5-6000 CL30-40-40-96 1.40V
64GB (2x32GB)
~$510

2. F5-6400J3239G32GX2-TZ5RK
https://www.gskill.com/product/165/374/1665644504/
DDR5-6400 CL32-39-39-102 1.40V
64GB (2x32GB)
~$620

I wonder if the same memory chips are not used in these memory modules, and only the manufacturer (maybe after selection) just entered the appropriate timings into the XMP profiles. Has anyone had experience with this topic, has practical knowledge?

The difference in which I can buy these models is quite large. It is around $110. More expensive set is ~122% price of cheaper one and cheaper is ~87% of more expensive. The difference in parameters (MT/s and CAS) is one parameter +6% the second -6% and vice versa in the second set. I imagine it won't even give 1% performance in general usage (mostly gaming). What do you think about it? I am very much inclined to buy a cheaper set.

 

[ir_cow]

Most likely they are SK Hynix M-Die. Can't be Micron because the freq is too high. Maybe Samsung ICs for 6400, but I doubt it.

What platform are you buying it for?

 

[dgianstefani]

Get the cheaper one and overclock it.

 

[ThrashZone]

Hi,
Probably the same bin just raised the latency to raise frequency and keep the same dimm voltage.

 

[Lockheed Martin]

What platform are you buying it for?

Gaming (and streaming).

Get the cheaper one and overclock it.

Right! o7

Probably the same bin just raised the latency to raise frequency and keep the same dimm voltage.

Thank U 4 Your respond. o7

 

[ir_cow]

Hi,
Probably the same bin just raised the latency to raise frequency and keep the same dimm voltage.

Both are 64GB kits. Overclocking will be a challenge and I'm 99% sure its Hynix M-Die now. I only have one 64GB kit and from my notes it seems I did 6000 @ 32-36-36-28 1.45V. I should give it another run with a 13900K.

I would buy the cheaper kit and leave it alone. That is unless your into memory overclocking and tweaking.

 

[Lockheed Martin]

Thank You Guys for your interest.

I would buy the cheaper kit and leave it alone. That is unless your into memory overclocking and tweaking.

Ultimately, that's what I'm going to do, as I don't expect to remark any noticeable differences between the settings from set 1 and set 2. But I think I'll see if I can make set 2 settings work with set 1.

For some reasons, hard to explain briefly, I have three such sets, but I can return them (and I don't feel the need to unpack them). Of course, I will leave set 1.

 

[ir_cow]

It will be interesting to see if you can get 4x32GB to run at 6000.

 

[Lockheed Martin]

It will be interesting to see if you can get 4x32GB to run at 6000.

That's why I bought the 2x32GB set right away, because I'm afraid that it won't be possible and I'm not going to expand the memory anymore.

 

[ThrashZone]

Both are 64GB kits. Overclocking will be a challenge and I'm 99% sure its Hynix M-Die now. I only have one 64GB kit and from my notes it seems I did 6000 @ 32-36-36-28 1.45V. I should give it another run with a 13900K.

I would buy the cheaper kit and leave it alone. That is unless your into memory overclocking and tweaking.

Hi,
Yeah
Since the other timings and latency is known it's going to be a fast easy starting place to try instead of starting from scratch

Keeping the same latency and just increasing frequency will always require more dimm voltage and still might not work without other voltages increased and timings adjusted as you said

Bets off on 4x32gb

Latency in the 40's

 

[tabascosauz]

Thank You Guys for your interest.


Ultimately, that's what I'm going to do, as I don't expect to remark any noticeable differences between the settings from set 1 and set 2. But I think I'll see if I can make set 2 settings work with set 1.

For some reasons, hard to explain briefly, I have three such sets, but I can return them (and I don't feel the need to unpack them). Of course, I will leave set 1.

All 3 look like A-die from the 042 code? S820A.

 

[ir_cow]

I know the 12th gen has a hard time with dual rank. I think I topped out at 6000 with either 4x16 or 2x32 (Have to check notes again). 13th gen so far I've reached 6600 with 4x16GB. That's compared to reaching 8000 with 2 sticks (same CPU / MB). I don't have a second 64GB to try.

 

[ElusiveX99]

13th gen on Asus z680 Formula and I couldn't get 4 dimms to work at @6000. Switching to z790 asus board next week and will test.

 

[davidm71]

I have same kit, F5-6000J3040G32GX2, and I believe they are A die. Running at 6000mhz on a 7950x3d with lax timings. I don't think these
will take Buildzoids timings as I crashed needing to reset bios with Zoids timings. Considering the Vsoc voltage limitations I doubt theres
much headroom. Maybe a looser set of timings would work but I don't know..

Thanks

 

[ir_cow]

I have same kit, F5-6000J3040G32GX2, and I believe they are A die. Running at 6000mhz on a 7950x3d with lax timings. I don't think these
will take Buildzoids timings as I crashed needing to reset bios with Zoids timings.

Using other peoples XOC timings setup is a waste of time. 99% of the time it won't be stable. It's nice to know what other people are doing with Hynix A die, but it won't directly help you.

The exception is if you already know your CPU limits and voltages needed for x freq, It saves you some time. But just copying the values is just asking for trouble if you don't know what they do.