Friday, May 24th 2019

AMD Zen 2 CPUs to Support Official JEDEC 3200 MHz Memory Speeds

May 24th, 2019 12:26 Discuss (48 Comments)

An AMD-based system's most important performance pairing lies in the CPU and system RAM, as a million articles written ever since the introduction of AMD's first generation Ryzen CPUs have shown (remember the races for Samsung B-die based memory?). There are even tools that allow you to eke out the most performance out of your AMD system via fine memory overclocking and timings adjustment, which just goes to show the importance the enthusiast community derives from such tiny details that maximize your AMD Zen-based CPU performance. Now, notorious leaker @momomo_us has seemingly confirmed that AMD has worked wonders on its memory controller, achieving a base JEDEC 3200 MHz specification - up from the previously officially supported DDR4-2666 speeds in the first-gen Ryzen (updated to DDR4-2933 speeds on the 12 nm update).

The importance of system memory for AMD lies in the fact that the CPU's CCXs use the memory bus as a way to calculate their Infinity Fabric speeds, which allows for inter-CCX communication - higher memory data rates thus equal higher CPU performance as a whole. The increase in the base JEDEC specification support means that AMD have worked on adding a little grunt to their memory controller which should help improve IPC due to increased Infinity Fabric capabilities. momomo_us also confirmed at least up to 4400 MHz OC "official" support from AMD, a far cry from current AMD Zen silicon - even in its 12 nm iteration. Let's wait to see if the current salty 5000+ MHz DDR4 speeds are indeed possible, come the product's launch.

Source: User @momomo_us on Twitter

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48 Comments on AMD Zen 2 CPUs to Support Official JEDEC 3200 MHz Memory Speeds

ZoneDymo

Sexy, now lets hope the ram is a fair price....

londiste

up from the previously officially supported DDR4-2666 speeds.

You mean DDR4-2933, right? DDR4-2666 was official for the first generation Ryzen.
Screenshot is clearly from some motherboard vendor.

Metroid

In this review, ryzen 2000 series was best fit with ddr4 3466mhz. I wonder how it will be for ryzen 3000 series, as we already know amd improved the memory controller for the ryzen 3000 series then we could assume a faster than ddr4 3466mhz will be required for maximum performance gain. Looking forward for a review to point out which ddr4 speed will be best for ryzen 3000 series.

www.legitreviews.com/ddr4-memory-scaling-performance-with-ryzen-7-2700x-on-the-amd-x470-platform_205154

Raevenlord

News Editor

londisteYou mean DDR4-2933, right? DDR4-2666 was official for the first generation Ryzen.
Screenshot is clearly from some motherboard vendor.

I was indeed referring to the first-gen Ryzen - the CPU I'm rocking right now. Updated the story to clarify. Thank you.

bogami

3200 JEDEC RAM. Nice , but I have not seen it yet. I am waiting and waiting. High probability that I will buy rayz R-9 3850, I also hope for a richer offer on maderboards in 570x chipset, JEDEC 3200Hz is good news , support option for the upcoming DDR5 . :)

IceShroom

And we still have DDR4 module with only DD4-2133 M/T JEDEC, not even DDR4-2666 M/T or DDR4-2933 M/T. :mad: :mad:
How many years will take to have DDR4-3200 M/T JEDEC module??

efikkan

IceShroomAnd we still have DDR4 module with only DD4-2133 M/T JEDEC, not even DDR4-2666 M/T or DDR4-2933 M/T. :mad: :mad:
How many years will take to have DDR4-3200 M/T JEDEC module??

Well, we do have plenty of modules certified for JEDEC speeds of 2666 MHz, some at 2933 MHZ and a few at 3200 MHz, like this one, I believe. But unfortunately way too many are only certified for 2133 MHz.

IceShroom

efikkanWell, we do have plenty of modules certified for JEDEC speeds of 2666 MHz, some at 2933 MHZ and a few at 3200 MHz, like this one, I believe. But unfortunately way too many are only certified for 2133 MHz.

But only few handful. Not widely avialable.

Xuper

As Ryzen owner , Pretty sure Those modules certified (3200Mhz) are high latency like CL 18 , Not CL 14 or Cl 16.I had hard time to make stable at CL16

#10

efikkan

XuperAs Ryzen owner , Pretty sure Those modules certified (3200Mhz) are high latency like CL 18 , Not CL 14 or Cl 16.I had hard time to make stable at CL16

Yes, for sure. And while lower latency is better, it's a pain to make it stable over several years. It's a reason why memory controllers are certified for specific speeds, those are the speeds that are guaranteed to be working throughout the warranty and usually beyond that. But in general, lower latency memory have relative low impact on performance, except it perhaps helps a little bit with min FPS etc. and some edge cases, it's really not worth the pain. If you build machines for competitive benchmarking, then of course you want to squeeze every bit of performance out of it. But for normal builders, even gamers, JEDEC speeds should be the starting point. Far too many waste money on expensive memory with rated speeds most wouldn't be able to run over time.
And if you need more bandwidth, just buy HEDT.

#11

NdMk2o1o

XuperAs Ryzen owner , Pretty sure Those modules certified (3200Mhz) are high latency like CL 18 , Not CL 14 or Cl 16.I had hard time to make stable at CL16

Lots of people have 3200 cl16 with no issues, I'm rocking a 1st gen 1600 and ddr4 3000 cl16 @3200 cl14 with no issues

#12

TheoneandonlyMrK

NdMk2o1oLots of people have 3200 cl16 with no issues, I'm rocking a 1st gen 1600 and ddr4 3000 cl16 @3200 cl14 with no issues

True ,I recently got new memory, Corsair Vengeance RGB Pro 8x2 16GB(binned(3466) Bdie) ,it ran out of the box at its Xmp profile, speed and timings without issues, cl16, I've tightened the timings a bit and it's stable still , It wont do 3600 though atm, I've not given up yet though.

#13

TheGuruStud

NdMk2o1oLots of people have 3200 cl16 with no issues, I'm rocking a 1st gen 1600 and ddr4 3000 cl16 @3200 cl14 with no issues

Ohhhh, which sticks? This is juicy info.

#14

NdMk2o1o

TheGuruStudOhhhh, which sticks? This is juicy info.

I have hynix dies, nothing special. Teamgroup ddr4 3000 c16 18.18 I had no issues running mismatched sitcks of 2800 prior to this kit from day1 bios also. Though Asrock have had some of the most stable ram support from 1st gen Ryzen and it's more down to that.

#15

TheGuruStud

NdMk2o1oI have hynix dies, nothing special. Teamgroup ddr4 3000 c16 18.18 I had no issues running mismatched sitcks of 2800 prior to this kit from day1 bios also. Though Asrock have had some of the most stable ram support from 1st gen Ryzen and it's more down to that.

I'm gonna be using a taichi probably, so hopefully cheapo ram clocks well.

#16

NdMk2o1o

theoneandonlymrkTrue ,I recently got new memory, Corsair Vengeance RGB Pro 8x2 16GB(binned(3466) Bdie) ,it ran out of the box at its Xmp profile, speed and timings without issues, cl16, I've tightened the timings a bit and it's stable still , It wont do 3600 though atm, I've not given up yet though.

I can't get above 3200 unfortunately though on a b350 board and one of the most budget ones I can't complain at my CPU or RAM OC, though it has been as good since I got it and only improved with every bios update.

TheGuruStudI'm gonna be using a taichi probably, so hopefully cheapo ram clocks well.

Asrock have the best Ryzen boards imo and the taichi's are no exception

#17

phanbuey

NdMk2o1oI can't get above 3200 unfortunately though on a b350 board and one of the most budget ones I can't complain at my CPU or RAM OC, though it has been as good since I got it and only improved with every bios update.

Asrock have the best Ryzen boards imo and the taichi's are no exception

AMD is improving in performance, while my intel is slowly collapsing like a souffle. XD

#18

NdMk2o1o

phanbueyAMD is improving in performance, while my intel is slowly collapsing like a souffle. XD

Sarcasm? I mean you have a 1k chip and quad channel RAM/HEDT motherboard :ohwell:

#19

phanbuey

NdMk2o1oSarcasm? I mean you have a 1k chip and quad channel RAM/HEDT motherboard :ohwell:

Lol no not at all. Whereas you like your bios updates, i am terrified of mine :p

I have an r7 1700 for my db machine - i might pop whatever the cheapest / hcc zen chip that the b350 board supports.

#20

NdMk2o1o

Hopefully theres a 95w 12c chip you can throw into it, plus there should be a 30% ipc uplift from 1st gen Ryzen

#21

aQi

ZoneDymoSexy, now lets hope the ram is a fair price....

#22

TheMadDutchDude

My first-gen Ryzen had a stronger IMC than my second gen... pretty strange. I was able to keep 3600 C16 stable on my 1700, but cannot do anything to get it remotely stable on my 2700X. I can run 3400 C14, though.

I'm really looking forward to the Zen2 chips, and cannot wait to grab one with a new motherboard. We will see how far my exotic memory can truly go with Ryzen. :)

#23

aQi

TheMadDutchDudeMy first-gen Ryzen had a stronger IMC than my second gen... pretty strange. I was able to keep 3600 C16 stable on my 1700, but cannot do anything to get it remotely stable on my 2700X. I can run 3400 C14, though.

I'm really looking forward to the Zen2 chips, and cannot wait to grab one with a new motherboard. We will see how far my exotic memory can truly go with Ryzen. :)

Seems like someone is thinking of making a world record after all :rockout:

#24

TheMadDutchDude

I highly doubt that... xD

I don't have any LN2 at my disposal, sadly. Maybe in a few years... we will have to wait and see.

I have memory that should be capable of 4800+ on air, though. Again, we shall see. :D

I wish this conference would just hurry up and tell us when Zen2 will be out. I am itchy!

#25

aQi

TheMadDutchDudeI highly doubt that... xD

I don't have any LN2 at my disposal, sadly. Maybe in a few years... we will have to wait and see.

I have memory that should be capable of 4800+ on air, though. Again, we shall see. :D

I wish this conference would just hurry up and tell us when Zen2 will be out. I am itchy!

4800+ hmmm sounds legit makes me wounder if it can cross 5000+ om air ? I guess you would definitely need LN2 for purpose of squeezing such speeds....Zen2 might be the answer to it giving more room for OCing it without the LN2 (correct me if im wrong)

Man i am curious. Alot of stuff is gona be glittering this Computex. Not just from Amd ofcorse its the major thing happening this year but other then that alot of goodies, definitely want to see that evga sr-3 dark and some upto 5ghz ram sticks...pci-e 4 nvme. A new geforce. Perhaps an Asus Mars.

I am surprised no news from intel at computex :confused:

Oh well when you break some bones (oc ram on air) do tag me :toast:

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AMD Zen 2 CPUs to Support Official JEDEC 3200 MHz Memory Speeds

48 Comments on AMD Zen 2 CPUs to Support Official JEDEC 3200 MHz Memory Speeds

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