Download: DRAM Calculator for Ryzen v1.7.2 (updated)

#5787537 Posted on: 05/11/2020 07:32 PM

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DDR4 prices going down to more reasonable levels wouldn't be a bad thing, there's a good number of titles that do benefit but of course from a price / performance perspective there's some very diminishing returns when each stick potentially costs a few hundred dollars or comparable each.

Looking forward to what the DDR5 kits can do and the latest improvements to the CPU and motherboard architecture both from AMD and Intel, maybe with some tweaking the upcoming 4000 series won't be as dependent although it is also possible it will show even bigger benefits by removing some of the current limits and bottlenecks and improvements to cache and such.


Fallout 4 even with DDR3 was what really showed me how some games and I presume also other software including the OS itself could scale really nicely with higher speed kits and since then just about any memory intensive game especially open world or those relying extensively on data streaming benefits but once you pass around the 3200 range for DDR4 kits the prices really ramp up too so these high-end modules become incredibly costly for a smaller benefit from that point.
(It's nice to have but within a reasonable pricing range and compared to the rest of the cost of the hardware for the system.)

#5787541 Posted on: 05/11/2020 07:42 PM

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Exactly , not to mention that all I could find in my country stores when I built this PC was 3600 CL18, and to buy a good 3600Mhz CL16 it was to expansive with an estimation date of arrival of 3 - 4 weeks . ... After you pass 3600 Mhz ... RAM prices just skyrockets

#5787575 Posted on: 05/11/2020 10:14 PM

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I did MEMbench and monitor temps with HWMonitor. I think temps are fine.

What do you mean “even more so with AIO”?
thank you

All-In-One liquid cooler, lose air flow,heat soak, that is why i have a Ram cooler.
Do the default MEMbench run please.

#5787580 Posted on: 05/11/2020 10:45 PM

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I just love this tool. Such a time saver. I have my Ryzen 1800x running with 3200Mghz cas 14 with some pretty tight sub timings due to this tool. My CPU just can't handle any higher frequency.

#5787596 Posted on: 05/12/2020 12:39 AM

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... and since forever those values are not what is written in BIOS from the upside down, but all other values seem "in the right place" so you can read / set them by going from the upside downwards.
So his first "issue" applies to me, too.

@mgilbert :
The issue with your tRFC is the calculator uses what "every chip may be capable of", for example 160ns for Samsung b-die. This equals to tRFC 256 at 3200MHz (my own "safe" profile).
You calculate the specs written in your RAM by a given formula, starting from 350ns instead of 160 (and different speed).
So both are correct, but the formula is different.
Rule of thumb = higher values are bad for performance but good for stability.