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Arbeitsspeicher für Ryzen 9700x - ASUS TUF Gaming B850M-Plus WIFI?

Caesar 29.03.2025 - 15:03 2235 17
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Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Hi!
I hope it is OK to ask in English. Feel free to answer in German, I can usually read well enough :)

I have finally ordered a new motherboard (ASUS TUF Gaming B850M-Plus WIFI) for upgrading my ancient Intel X99 platform to AM5.
This obviously needs more components and I think I will go for a 9700X cpu, or possibly a 9600X.
Since I am new to the AM5 platform and haven't build an AMD setup since the days of Socket 939, I would like to ask for a bit of advice on selection of RAM. I will probably not do any significant overclocking, because the cooling in my mATX chassis has to work hard enough as it is, but I would still like the RAM to offer decent performance.

I would like to get a kit with two modules and probably 48 or 64 GB in total, to have enough now but still have space for more RAM in a few years if necessary.
The hard part is then to choose speed and latency, how much does it really matter on this platform?
And then, how important is it to pick a kit from the Qualified Vendors List?

I have looked a bit at pangoly.com, but it is still very hard to know which parameters actually matter for real-world performance.

d0lby

reborn
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Registered: Jul 2004
Location: At home
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The sweet spot for AMD is DDR5-6000. As long as you go with well-known brands, you don’t need really to stick with checking the ASUS compatibility list.

These should be a good option for your setup:
https://geizhals.at/kingston-fury-b...13.html?hloc=at

What will you be using this PC for? Maybe 64 are nor really necessary. If you plan just to game, discord, music stream, the 64 would not really be needed.

Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Well, I have been in the habit of occasionally running a VM for testing purposes, and sometimes more RAM heavy games (i.e. three clients of EVE online + excel, web browser, etc.).
My current setup is running 40 GB (2x16 + 2x4), and it feels wrong to go for less on a new platform, so 2x24 feels like minimum for me.

The Kingston ones look nice, but there are still considerably cheaper ones at DDR5-6000, although with worse timings. Does CL30 make that much of a difference, compared to say CL36 ones like these?
https://geizhals.at/g-skill-ripjaws...58.html?hloc=at

I can definitely afford the extra €30, but is it really well spent money?

blood

darkly dreaming
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Registered: Oct 2002
Location: Wien
Posts: 9439
cl36 is completely fine. the real world performance difference when going for lower timings is very small in most use cases if measurable at all.
and when your current setup is already running 40gb of ram going for 64 when upgrading feels like a logical step.

I would go for RAM that says 'AMD EXPO' though, just to be sure, for example:
https://geizhals.at/g-skill-flare-x...5-a3361462.html

don't forget to activate the memory overclocking profile in BIOS after you booted your new system for the first time, otherwise the RAM will only run with 4800MT/s.
Bearbeitet von blood am 30.03.2025, 21:30

d0lby

reborn
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Registered: Jul 2004
Location: At home
Posts: 6502
Your linked don’t have EXPO, they can/could run with AMD, but it is easier to take them (as blood posted) with EXPO

I can not prove it but the difference would be 1-2-3% in gaming and maybe 3-4-5% for rendering or editing video… but this is just what I guess, so it must be not true:)
Bearbeitet von d0lby am 30.03.2025, 16:27

creative2k

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Registered: Jul 2002
Location: Vienna
Posts: 8608
Here are some benchmarks/tests:



Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Great, just the kind of details I was hoping for! I only wish TechPowerUp had done some benchmarks with same speed, different timings. The videos clarified some of that though :)

Going for DDR5-6000 AMD EXPO seems like a no-brainer, and also timings on the lower side.
I'll probably keep an eye out to see if I can catch a good kit with CL30, otherwise get some CL36.

Thanks again, I'll keep you all updated with the outcome!

Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Is Patriot considered a well-known brand or are there some issues to be expected with Patriot+ASUS B850 for some reason?

This looks like quite a good deal to me, otherwise:
https://geizhals.at/patriot-viper-v...27.html?hloc=at

Viper780

Elder
Er ist tot, Jim!
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Registered: Mar 2001
Location: Wien
Posts: 51343
Patriot Memory is a well known American manufacturer for DRAM.

I wouldn't expect any troubles

For the CPU, I wouldn'T buy anything with lass than 8 cores new. If your budget is thight than the AMD Ryzen 7 7700 would be also a reasonable option.

Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Quick status update:
New system is now up and running, only initial issues were with activating Windows after the upgrade but that is now solved as well.

Thank you all for the advice! :)

blood

darkly dreaming
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Registered: Oct 2002
Location: Wien
Posts: 9439
no worries, win11 has probably more issues in store for you :D

Caesar

Bloody Newbie
Registered: Jul 2022
Location: Graz
Posts: 14
Zitat aus einem Post von Viper780
Patriot Memory is a well known American manufacturer for DRAM.

I wouldn't expect any troubles

Actually it seems that maybe I should have gone with the Kingston RAM.
In my first configuration I had activated EXPO but not actually increased the speed, so they were still running at 4800.
A bit later I turned them up to 6000 CL30, at the same time as changing a bunch of other configurations though, and the errors I got had me really confused for a long time. It was only after a complete re-install of Windows and a few other changes that I realized that 6000MHz CL30 was the problem.
Now I'm running at 5600 CL36, and it runs fine but at 6000 CL30 I only make it into Windows 50% of the time.

Conclusion: Take the compatibility list a bit more seriously next time ;)

creative2k

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Registered: Jul 2002
Location: Vienna
Posts: 8608
A friend of mine also bought Patriot memory (https://geizhals.at/patriot-viper-v...k-a2724586.html) for his two new AMD systems and had nothing but problems. The systems accepted EXPO once, and after that, they would just hang during POST on every reboot and wouldn't boot anymore. After EVERYTHING was swapped out (CPU, motherboard, SSDs...), he finally replaced the memory, and then it actually worked normally. (He then used QVL memory from G.Skill.) Normally, you shouldn't have such problems with EXPO RAM... this was new to me as well.

Jedimaster

Here to stay
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Registered: Dec 2005
Location: Linz
Posts: 3928
Zitat aus einem Post von Caesar
Take the compatibility list a bit more seriously next time ;)

True words, unfortunately the Memorycontroller of both Zen4 and Zen5 is not "great".
While running on "Stock" is no issue at all, everything with higher clocks can be quite an issue.

Unfortunately its not only a matter of "Brand" here, some CPU's just cant handle DDR5-6000 stable, while others even manage DDr-6400, its quite a bit gamble in the silicon lottery, therefore even if you switch memory to another brand - it might or might not work.

The performance difference between 5600 and 6000 is quite small so i wouldnt recommend to replace them as its financially too much of a riskinvestment to be worth it.

creative2k

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Registered: Jul 2002
Location: Vienna
Posts: 8608
Attention... he also has 2x32GB... that will of course also have an impact. Normally, 6000 with single rank is no problem. With dual rank, you’re more likely to run into issues if you have a weak memory controller, but in that case, it has to run with a memory divider. You can’t make a blanket statement that 6000 won’t work, it really depends on factors like the memory density.
Bearbeitet von creative2k am 10.07.2025, 15:50
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