Corsair 4x8GB RGB RAM - what chips are these? CMW32GX4M4D3600C16

chanjy · 2 Jan 2021 at 17:35

Anyone got this set yet?

CMW32GX4M4D3600C16

It doesn’t seem to show up in QVL lists or have any reviews, does anyone have them and can run Thaiphoon Burner or report any results?

Seems a bit slow timings wise to be Samsung B die, but not sure what else it could be? Micron or Hynix?

mickyflinn · 2 Jan 2021 at 22:53

They should be samsung b die unless its changed.

chanjy · 3 Jan 2021 at 07:21

mickyflinn said:
They should be samsung b die unless its changed.

All the confirmed B Die kits seem to be 16-18-18-36

https://www.corsair.com/ca/en/Categ...RGB-Black/p/CMW16GX4M2K3600C16#tab-tech-specs
https://www.corsair.com/us/en/Categ...TINUM-RGB/p/CMT32GX4M4K3600C16#tab-tech-specs

Just weird that these are 16-19-19-36, must be crap bin Samsung B die if it is B die then?

Zeeflyboy · 3 Jan 2021 at 11:55

Run taiphoon burner and it’ll tell you

chanjy · 3 Jan 2021 at 12:02

Zeeflyboy said:
Run taiphoon burner and it’ll tell you

I don't want to buy it until I know lol

Zeeflyboy · 3 Jan 2021 at 12:02

Ah sorry, thought you already have it! Reading too quickly!

fs123 · 3 Jan 2021 at 15:15

chanjy said:
All the confirmed B Die kits seem to be 16-18-18-36

https://www.corsair.com/ca/en/Categ...RGB-Black/p/CMW16GX4M2K3600C16#tab-tech-specs
https://www.corsair.com/us/en/Categ...TINUM-RGB/p/CMT32GX4M4K3600C16#tab-tech-specs

Just weird that these are 16-19-19-36, must be crap bin Samsung B die if it is B die then?

I've tested a few different RAM chips recently and found that even Micron B-die and Nanya A die chips can overclock to 3800MHz or 4000MHz so not sure why everyone is trying to find Samsung B-die.

GregI · 3 Jan 2021 at 15:39

fs123 said:
I've tested a few different RAM chips recently and found that even Micron B-die and Nanya A die chips can overclock to 3800MHz or 4000MHz so not sure why everyone is trying to find Samsung B-die.

It's not just about reaching the same RAM frequency. It's the timings within that frequency that only B-Die can reach that leads to more performance.

chanjy · 3 Jan 2021 at 16:01

fs123 said:
I've tested a few different RAM chips recently and found that even Micron B-die and Nanya A die chips can overclock to 3800MHz or 4000MHz so not sure why everyone is trying to find Samsung B-die.

GregI said:
It's not just about reaching the same RAM frequency. It's the timings within that frequency that only B-Die can reach that leads to more performance.

Yep the B die timings and sub timings are just much better usually and it can make quite a big difference to performance. However seems like nobody has this set so might just have to take a gamble lol

GregI · 3 Jan 2021 at 16:23

chanjy said:
Yep the B die timings and sub timings are just much better usually and it can make quite a big difference to performance. However seems like nobody has this set so might just have to take a gamble lol

Sorry I didn't address your question about the Corsair.

The RAM is most likely badly performing B-Die (it's a very strange XMP profile). If you want the actual good B-Die RGB in 32GB you are basically looking at G. Skill Neo. At 3200 Mhz timings of 14-14-14-34 or 3600 Mhz with 16-16-16-36. Quite hard to find in the UK unfortunately.

chanjy · 3 Jan 2021 at 16:34

GregI said:
Sorry I didn't address your question about the Corsair.

The RAM is most likely badly performing B-Die (it's a very strange XMP profile). If you want the actual good B-Die RGB in 32GB you are basically looking at G. Skill Neo. At 3200 Mhz timings of 14-14-14-34 or 3600 Mhz with 16-16-16-36. Quite hard to find in the UK unfortunately.

Yep have seen it around and it’s pretty expensive, but I guess you do get what you pay for...

fs123 · 3 Jan 2021 at 18:34

GregI said:
It's not just about reaching the same RAM frequency. It's the timings within that frequency that only B-Die can reach that leads to more performance.

I managed 19-20-20-20-39 at 4000MHz on the Nanya chips which is respectable at 1.385V. How much better can Samsung B-die get than that?

chanjy · 3 Jan 2021 at 19:52

fs123 said:
I managed 19-20-20-20-39 on the Nanya chips which is repectable at 1.385V. How much better can Samsung B-die get than that?

The B die can have a standard MPX profile of 16-16-16-36 on some bins and the subtimings underneath that are also better which can aid performance. My existing set I managed to get my Timespy CPU score up from 12k to 15k just by adjusting the subtimings

Space Monkey · 3 Jan 2021 at 21:00

fs123 said:
I managed 19-20-20-20-39 on the Nanya chips which is repectable at 1.385V. How much better can Samsung B-die get than that?

Or like the B-Die ram I've just bought, CL 14-15-15-35 :cool:

fs123 · 3 Jan 2021 at 21:19

Space Monkey said:
Or like the B-Die ram I've just bought, CL 14-15-15-35

I forgot to mention mine was at 4000MHz. I still returned the sticks because the RGB Pro were too high for my heatsink. Now waiting for some Crucial Ballistix 3600 C16 which should be even better and lower profile.