Confused about Ryzen Ram

Rom

Rom

Rom

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So im building my first amd rig since Athlon FX!

5900X
3080

I already have 2 x 16gb of Corsair 3200, with timings of 16/18/18/36. This is lower timings than the current Corsair 3600 32gb, Viper Patriot 3600, and matches the 8 Pack.
Corsair Vengeance LPX 32GB (2x16GB) DDR4 PC4-25600C16 3200MHz Dual Channel Kit - White (CMK32GX4M2B3 to be exact

Now im not trying to say my ram is better than all those! But should i keep what i have, is there much hope i can get it to run @ 3600? Then maybe look into an upgrade at a later date. As unimportant as it is, i like my current stuff as its white and goes well :rolleyes:


Im really confused with speed vs timings. I see Gamer Nexus test, and 3866 @ 3800 won out. Do i just go buy that. Im guessing 2 x 16 is better than 4 x 8 still?

It seems the difference between 3200 and 3600 is very small. And my 3200 seems quite good timings, so that may sway things.

I know everyone will have a different opinion, or a particular ram to recommend.
 
Stick with the 3200mhz you aready have the lower timings will equate to 3600mhz.

Even if they were slower it would only be 2 to 3 fps difference in gaming.
 
So Ive tried getting my ram to 3600, it was just a quick and dirty XMP, selected 3600. Wouldnt boot. Didnt mess with voltage, its already set at 1.35v. Nor touch any ratios or anything. Not overclocked ram before tbh! This is on Intel currently.

It does run at 3466, ran a benchmark to stress it a bit. No crashes so far. Not sure if that speed is going to help at all with Ryzen, or if it needs to be either 3200 or 3600. Will try some games over the weekend to confirm its stable.
 
If you are trying to get 3200 > 3600 you'll most likely need 1.4v or a smidge over for the RAM. But other things come into play like the voltage to the SoC (1.1 - 1.2v). SoC will do things like the memory controller.
 
Firegod said:
If you are trying to get 3200 > 3600 you'll most likely need 1.4v or a smidge over for the RAM. But other things come into play like the voltage to the SoC (1.1 - 1.2v). SoC will do things like the memory controller.
Click to expand...
This. I need 1.4v to maintain CL14 @ 3600
 
Rom said:
So Ive tried getting my ram to 3600, it was just a quick and dirty XMP, selected 3600. Wouldnt boot. Didnt mess with voltage, its already set at 1.35v. Nor touch any ratios or anything. Not overclocked ram before tbh! This is on Intel currently.

It does run at 3466, ran a benchmark to stress it a bit. No crashes so far. Not sure if that speed is going to help at all with Ryzen, or if it needs to be either 3200 or 3600. Will try some games over the weekend to confirm its stable.
Click to expand...
try 16-19-19 for timings .. do not increase the voltage if it doesn't give you anything... ram is much harder to check for stability..
 
I am just about to pull the trigger on a Zen3 build as well and its memory i am looking at closely.
If Zen3 can pull 2k 1-1 on the fabric and ram i expect some fireworks in tests, just waiting on a site/channel testing various speeds ect before clicking the "buy" button.
 
"What is the fastest possible RAM you can run with 1:1 FCLK?

DDR4-4000. 2000MHz FCLK is to the Ryzen 5000 Series what 1900MHz FCLK was to the Ryzen 3000 Series. Many samples can do it, but not all. In the upcoming AGESAs, we will be implementing additional tuning that will make reaching 2000MHz easier. This is not a guarantee. There is no "safe bet" that your CPU will reach this frequency. But don't be surprised to see a bunch of people bringing that magical 2000MHz FCLK home with DDR4-4000.

Okay, so what's the best price/performance?

DDR4-3600 continues to be a "sweet spot." The kits are inexpensive, widely available, perform well, and have good compatibility. Is it the best in every category? No, but that's not what the sweet spot is. 3600 is a good bet because it's a good value in perf/$ for someone who wants to plug and play. Is it the best possible performance? No. Is it close? Yes, and without tinkering.

What's the best memory, even if I have to overclock?

Probably very tight timing 3600 or 3800, just like the Ryzen 3000 Series. The timings on these
memory bins can be super aggressive versus higher memory speed grades, and that usually
overpowers frequency."

Updated AGESA might help in the future.....
 
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