New 64GB kit advice for AMD

arconz · 18 Aug 2020 at 01:23

Which of the following 64GB kits (2x32) would be best for Ryzen 3900 series? I will actually be buying 4900 series (or whatever they end up calling it) in a couple of months but I assume it will be using the same DDR4?

Gigabyte Designare DDR4-3200MHz CL16-18-18-38
Trident Z Neo DDR4-3600MHz CL18-22-22-42

Primary use is for an editing & 3D simulation workstation, occasional gaming but not much.

mickyflinn · 18 Aug 2020 at 11:16

Wont be much difference in terms of performance mite be worth going for the higher mhz ram.

Is there a big price difference?

arconz · 18 Aug 2020 at 23:27

The Gigabyte is actually NZ$80 (44 euro) more expensive... not a deciding factor considering the cost of the rig.

One thing I noticed is that it seems to be very difficult to find higher capacity dimms like 32 GB that don't have slow latency timings... not sure if that's a limitation of ram design or something...

clv101 · 27 Aug 2020 at 10:13

I'm also looking for 32GB, (2x16) which will be suitable for the forthcoming zen 3. Cheapest currently would be 3200MHz for around £100, or around £150 for 3600MHz. Is that extra £50 going to be worth it? What sort of performance improvements will I see?

mickyflinn · 27 Aug 2020 at 10:39

It mite be worth looking at 4000mhz ram if your going zen 3 mite be able to utilize the faster speed.

Lots of rumours that zen3 gonna support ddr5 but apparently not.

AMD confirms that their Zen 3 Milan processors will not use DDR5

https://www.overclock3d.net/news/so...ir_zen_3_milan_processors_will_not_use_ddr5/1

clv101 · 27 Aug 2020 at 12:11

How much extra performance to you see from 4000 MHz compared to 3200 MHz? Seems very expensive, better value to put the extra cash on better GPU, CPU or even faster storage?

eeek · 27 Aug 2020 at 13:57

clv101 said:
How much extra performance to you see from 4000 MHz compared to 3200 MHz? Seems very expensive, better value to put the extra cash on better GPU, CPU or even faster storage?

Do 16gb let alone 32gb dimms actually exist for speeds above 3600Mhz, I can't see them which is why I have 4 x 8gb of 4400mhz for the 32gb I need.

As for whether it's faster I have infinity fabric running at 1900 Mhz so it does provide some improvement - whether it's actual noticeable I can't say as I can't remember what it was like with the slower memory