Official AMD Ryzen 5000 Series & 7000 Series Thread

[pax]

Some basic ram questions answered here:

https://www.reddit.com/r/Amd/comment..._5000/gb9ijsw/

AMD_RobertTechnical Marketing 47 points 2 days ago
"Best" is complicated.

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 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 frequecy. 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.

I only bought 3200, did i do bad?
No, DDR4-3200 is typically binned with tight timings that makes it very competitive with a weak or average DDR4-3600 kit. You're not missing out on a ton of performance, but there are gains to be had w/ OC if you're interested in it.

Did you change the memory controller?
No. Everything you know about memory from the Ryzen 3000 Series still applies. Everything. In full. Except the ceiling is now +100MHz higher @ DDR4-4000 for good samples.

[Gandalfthewhite]

Easiest way to tell rank 8gig sticks = single rank 99.999 percent of the time

16gig sticks = dual rank 99.999 percent of the time

Note that is per stick capacity so 2x16 is dual rank. 2x8 or 4x8 is single rank in 99.999 percent cases for consumer ram not designed for servers


Sent from my GM1917 using Tapatalk

[pax]

This requires clarification and Steve actually messed up part of what he was saying because he was only using single rank kits.

4 sticks of SINGLE rank sticks beats 2 sticks of SINGLE rank kits

2 sticks of DUAL rank sticks beats both of these.


2xDR > 4xSR > 2xSR

So 4 sticks of dual rank would beat them all?

Asking because some killer new Gskill kits are coming out end of the month...

[Gandalfthewhite]

no you will not see a real difference between 2x dual rank and 4x dual rank at least that has been what general testing has shown with zen2 over the last year. That is why I didn't even mention it.

Also one thing to note dual rank is harder to drive at low timings you are going to push more voltage to get decent timings. for example my 32gig kit is 3600 cl14-15-15-15-30 @1.45v

[Nunz]

go to 1.5v and send that puppy to heaven!!!!

Dual rank is indeed harder to OC. Many people chasing 4200Mhz+ specifically look for single-rank mem

[Gandalfthewhite]

go to 1.5v and send that puppy to heaven!!!!

Dual rank is indeed harder to OC. Many people chasing 4200Mhz+ specifically look for single-rank mem

My cpu is a bad sample for increasing infinity fabric speed sadly. It is the only reason I haven't pushed it further.

[Nunz]

My cpu is a bad sample for increasing infinity fabric speed sadly. It is the only reason I haven't pushed it further.

Tighten them timings! I'm just starting to dig in on my G.Skill B-Die again after the last attempt last year nuked my windows install even though it passed HCI Memtest 500% with no errors. I have a B-Die G.Skill 3200CL15 16x2 set. One month of running fine @ 3800 15-15-15-28 / 1.5v .. secretly corrupted my windows install; should have been checking for WHEA errors but .. yeah.

Scared me off for a good bit. LOL.

[acroig]

Tighten them timings! I'm just starting to dig in on my G.Skill B-Die again after the last attempt last year nuked my windows install even though it passed HCI Memtest 500% with no errors. I have a B-Die G.Skill 3200CL15 16x2 set. One month of running fine @ 3800 15-15-15-28 / 1.5v .. secretly corrupted my windows install; should have been checking for WHEA errors but .. yeah.

Scared me off for a good bit. LOL.

See, this is why I hate fing around with men other than XMP settings. No POST, corrupted OS.... not my thing.

[Riptide]

Might help to take an image before you start pushing it. If it blows it up, then just re-apply the image and start over.

[Nunz]

See, this is why I hate fing around with men other than XMP settings. No POST, corrupted OS.... not my thing.

It's definitely a very careful process that you have to really take your time with, and the gains are typically minimal or straight up aren't worth the days of stress-testing it involves. I enjoy OCing and getting the max out of everything, so that's the only reason I touch it. If I didn't like trying to eek out every bit of performance, I'd just run XMP.

I get bored and like to tinker every now and then.

[Gandalfthewhite]

if you want to dig into ram tuning on ryzen here is a good place to start

[acroig]

It's definitely a very careful process that you have to really take your time with, and the gains are typically minimal or straight up aren't worth the days of stress-testing it involves. I enjoy OCing and getting the max out of everything, so that's the only reason I touch it. If I didn't like trying to eek out every bit of performance, I'd just run XMP.

I get bored and like to tinker every now and then.

I do as well but I don't mind admitting RAM overclocking just plain scares me.

[Seyiji]

See, this is why I hate fing around with men other than XMP settings. No POST, corrupted OS.... not my thing.

Mebbe you haven't found the right man

[acroig]

Mebbe you haven't found the right man

If I ever did you'd be the one I'd do it with.

[Nagorak]

Tighten them timings! I'm just starting to dig in on my G.Skill B-Die again after the last attempt last year nuked my windows install even though it passed HCI Memtest 500% with no errors. I have a B-Die G.Skill 3200CL15 16x2 set. One month of running fine @ 3800 15-15-15-28 / 1.5v .. secretly corrupted my windows install; should have been checking for WHEA errors but .. yeah.

Scared me off for a good bit. LOL.

You should really consider picking up a copy of Karhu Ram Test. It only costs around $10, and it is much faster than HCI MemTest. Thoroughly testing your memory will take considerably less time with Karhu and you're more likely to catch any errors. MemTest was good in its day, but it's been surpassed at this point.

I do as well but I don't mind admitting RAM overclocking just pain scares me.

If you download Ryzen DRAM Calculator it provides a good starting point. In my experience the settings suggested by the program tend to be pretty accurate. They are conservative enough that they should work if you buy a decent kit (Samsung b-die: 3600 CL16, 3200 CL14 or better).

My experience with Micron E was less favorable. The suggested settings weren't that accurate and I had to manually tweak a lot, and ultimately it wasn't worth the hassle over going with b-die which offers better performance anyway. Well binned b-die has a pretty stable performance profile in my experience with 6+ kits (some are better than others, but none are ****).

[Nagorak]

Good lord have you seen the cost involved for that if you want 8x4 PC4000 with lower timings?

https://www.newegg.com/g-skill-32gb-...82E16820232973

32GB anyway, gonna cost a mint.

I'll say again that uber memory kits like that are pretty badly overpriced. If you look at the specs, you can see how they get those timings: they're running at 1.5v! Also CL15-16-16 is actually closer to CL16-16-16 than it is CL15-15-15. (Also, if you end up having to run with GearDownMode enabled, which depending on your CPU and board you may have to, it's going to round up to CL16 anyway.)

3600 CL15-15-15 comes with a standard voltage of 1.35v. If you increase the voltage to 1.5v, it's very likely to be able to do 15-16-16 timings at 4000 MHz (speaking from personal experience). In fact, there's a decent chance that 3600 CL16/3200 CL14 will be able to. Even if the timings are slightly looser in the end (which I don't think is guaranteed), you're talking 1-3% performance in entirely CPU limited situations for close to half the price.

Also, the thing about dual vs single rank kits and 2 vs 4 sticks, is that although at a given frequency dual rank is faster than single, and 4 is faster than 2, oftentimes two single rank sticks will clock higher and do tighter timings. So, it's not always clear which is outright better. Even with Infinity Fabric capping the frequency, two single rank sticks may still run tighter timings.

In the end, if you don't actually need 32 GB for some reason (gaming doesn't need it), you're probably better off just getting 16 GB, since the performance gain isn't going to be that huge for the amount of extra money you're spending. Also this is DDR4's last hurrah, so it's even more questionable whether you should dump a lot of money into it at this point.

Basically, if you're the type of person considering a 3090, then consider the uber kits, and 32 GB (and I would buy the 3090 first since it will offer more performance uplift). If you care at all about an economical build, you should pass those up for 16 GB of 3600 CL15 or 3600 CL16, because the return on your money beyond that point is very small.

[Nunz]

Definitely been thinking about buying Karhu. Someone just told me about TM5 with the extreme preset so ran that. I can get 3600 15-15-15-28 with ease @ 1.45v but 3800 has forever eluded me with this set. I chalk it up to being a DR set and the fact that the EVGA Z390 DARK is well documented for not liking 16gb sticks.

I don't know if I'm going to bother with secondary and RTL though. That's where **** gets dangerous lol

[caveman-jim]

Dual rank has been known to be faster assuming same clocks are achievable for SR as DR https://www.youtube.com/watch?v=JtVRs_Q1ngQ

The combo of 2GHz fClk with DR kit that has tight timings will be hard to get. https://www.pcgamer.com/amd-zen-3-in...abric-lottery/

Otherwise use DRAM calc to optimize what you've got.

[KAC]

I don’t have b die but from what is stated here I have dual rank chips. It is Corsair 32 GB (16x2). I run it at 3500 MHz using stock 1.35 volts and stock timings of 16-18-18-36. I can run it at 3600 MHz without issues at 1.4 volts using same timings. Will this memory be enough for a Ryzen? I think I can run it at 1.45 volts with same C16 timings and 3800 max but I have yet to try it out.

[Gandalfthewhite]

for running without an OC'ed infinity fabric 3600 would be the sweet spot KAC

[KAC]

Thanks Gandalf.

[KAC]

Kind of regretting not keeping the 5800X order even though everyone seems to be taking a massive dump on it.

[Nascar24]

Kind of regretting not keeping the 5800X order even though everyone seems to be taking a massive dump on it.

Just because it’s overpriced, I think it should be more like $375

[Meteor_of_War]

Just because it’s overpriced, I think it should be more like $375

Yep agreed. I will likely end up dropping in a 5800X in a year or two if I find a good deal by then. Maybe second hand, under $300 would be awesome. Sounds unlikely but my Ebay Kung Fu is good.

Once I have final AM4 socket series processor I'll probably be good for another 5-10 years before upgrading again lol.

[Treeckcold57]

Yep agreed. I will likely end up dropping in a 5800X in a year or two if I find a good deal by then. Maybe second hand, under $300 would be awesome. Sounds unlikely but my Ebay Kung Fu is good.

Once I have final AM4 socket series processor I'll probably be good for another 5-10 years before upgrading again lol.

i'm kinda agreed with that too....but I'm not so sure if should I buy another last AM4 socket mobo because I know AMD will have a brand new AM5 socket, DDR5, and PCIE in late 2021. I also don't know if should i just buy a 3700X or 3900X and then wait for Zen 4 and AM5. AMD made this so tough choice.

[Meteor_of_War]

i'm kinda agreed with that too....but I'm not so sure if should I buy another last AM4 socket mobo because I know AMD will have a brand new AM5 socket, DDR5, and PCIE in late 2021. I also don't know if should i just buy a 3700X or 3900X and then wait for Zen 4 and AM5. AMD made this so tough choice.

There's always something better on the horizon. Need to just make the decision of what you will be satisfied with.

[Nascar24]

i'm kinda agreed with that too....but I'm not so sure if should I buy another last AM4 socket mobo because I know AMD will have a brand new AM5 socket, DDR5, and PCIE in late 2021. I also don't know if should i just buy a 3700X or 3900X and then wait for Zen 4 and AM5. AMD made this so tough choice.

I would buy a 5600X before I bought a 3000 series at this point, unless you can get the 3000 series really cheap.

[KAC]

Seems like this will suffer the same fate as 30 series cards. There doesn’t seem to be any stock anywhere.

[acroig]

Seems like this will suffer the same fate as 30 series cards. There doesn’t seem to be any stock anywhere.

6800/6900 XT will meet same fate.

[Gandalfthewhite]

yeah the pandemic has ramped up demand hard.

[acroig]

yeah the pandemic has ramped up demand hard.

Right, any new hardware release will see the same thing.

[KAC]

Man I really thought that AMD would have a much better supply of products. Guess not.

[Gandalfthewhite]

its not a matter of supply constraints it is a matter of demand boom.

I spend around 10k a year on personal travel this year was going to be around 25k (I was going to the Olympics in Japan) all of that got cancelled. and my main entertainment has become gaming so guess where a bunch of that now free cash has gone? To my PC. That is the case for A LOT of people where PCs and Consoles can not meet demand. Look at the nintendo switch all year.

[acroig]

its not a matter of supply constraints it is a matter of demand boom.

I spend around 10k a year on personal travel this year was going to be around 25k (I was going to the Olympics in Japan) all of that got cancelled. and my main entertainment has become gaming so guess where a bunch of that now free cash has gone? To my PC. That is the case for A LOT of people where PCs and Consoles can not meet demand. Look at the nintendo switch all year.

This..

[Meteor_of_War]

Same has gone for pretty much any/all forms of home entertainment based tech.

Hell, even retro games have seen a massive demand spike. We should all feel fortunate for what we have right now, and I plan to enjoy it to the fullest.

[acroig]

We should all feel fortunate for what we have right now, and I plan to enjoy it to the fullest.

Amen to that.

[CurrentlyPissed]

I watched Pauls video last night. If you think about it, you can build a $1200 PC right now that 6 months ago would beat a $3000 PC.

It's kinda insane.

[acroig]

I watched Pauls video last night. If you think about it, you can build a $1200 PC right now that 6 months ago would beat a $3000 PC.

It's kinda insane.

IF you can find the parts that is.....

[Nascar24]

IF you can find the parts that is.....

Where’s my 5600X, back to the F5 workout!

[acroig]

Where’s my 5600X, back to the F5 workout!

, next quarter.