Memory to go with 9800x3d

[Tombs75]

Hi
Well im finally going back to AMD (obviously now) after 15 odd years with Intel. I managed to pre order the 9800x3d and so have been looking at motherboards and ram. I have heard and read that 6000/6400 is the sweet spot so mainly looked at those.
I found this I was interested in:

CORSAIR VENGEANCE RGB DDR5 RAM 64GB (2x32GB) 6400MHz CL32 Intel XMP iCUE Compatible Computer Memory - Black​

Only thing is on the reviews someone mentioned that its aimed for intel? rather than AMD and then posted a link up to the AMD version, however that turned out to be a 32gb set (2x16gb) and thus I didnt bother going further with that. Im just a tad confused on why its labeled as Intel xmp.

My questions are: is this ok and suitable? I have read that 2 sticks are better than 4 on AMD due to issues. Also for future (ish) proofing Im guessing 64gb will be the way to go.

Thanks

 

[Tetras]

Can you post the model number? You can check if the sticks are on the QVL after that.

We don't yet know how reliably the 9800X3D can hit 6400 @ 1:1, so you're taking a small risk it won't operate at that frequency with 1-click out of the box.

 

[Tombs75]

(CMH64GX5M2B6400C32)​

Looking at another site it does say you can save xmp profiles which is intel tech

 

[Tetras]

(CMH64GX5M2B6400C32)

And the motherboard model(s) you're considering, so you can check the QVL?

Looking at another site it does say you can save xmp profiles which is intel tech​

XMP works fine on many AM5 motherboards, though I'd always choose EXPO where possible.

Kits above 6000 tend to be XMP instead of EXPO, because the optimal speed for AMD AM5 was low latency 6000 and only after BIOS updates did they have widespread support for running at higher speeds. You don't want to lose 1:1 mode because the performance loss needs high speed RAM to compensate.

The X3D CPUs are less memory frequency sensitive than other CPUs too, which made it even less worth bothering with high speed kits for AMD.

 

[DizzyZ]

Sweet spot is 6000mhz and lowest latency (ideally less than or equal to CL32) and you should go for SK hynix chips which I believe all 6400 CL32 rams are (but double check) so the one you listed is good imo

 

[Tombs75]

And the motherboard model(s) you're considering, so you can check the QVL?


XMP works fine on many AM5 motherboards, though I'd always choose EXPO where possible.

Kits above 6000 tend to be XMP instead of EXPO, because the optimal speed for AMD AM5 was low latency 6000 and only after BIOS updates did they have widespread support for running at higher speeds. You don't want to lose 1:1 mode because the performance loss needs high speed RAM to compensate.

The X3D CPUs are less memory frequency sensitive than other CPUs too, which made it even less worth bothering with high speed kits for AMD.

I was looking at the x870e boards. I do want advice on those too but was going to do another post in the motherboard section as wasn’t sure on if it was ok to on here.
I don’t have a budget to be honest but I literally am using it for gaming only in 4k. Currently I have a 10900k and a 4090,64gb ddr4 and 4x2tb nvme’s.
The gpu and nvme’s will be transferred over .

 

[Tetras]

I was looking at the x870e boards. I do want advice on those too but was going to do another post in the motherboard section as wasn’t sure on if it was ok to on here.

Sure, I was asking because I can't check the QVL for the RAM if I don't know the motherboard model you're looking at. Not that the QVL is a guarantee of anything, but it is better for the RAM to be on it, than not.

The kit you're considering is most likely fine, so long as you're aware we're not sure how many 9800X3D CPUs can run that speed at 1:1. If you want a better guarantee of a one-click overclock, I wouldn't be picking 6400.

 

[Tombs75]

Sure, I was asking because I can't check the QVL for the RAM if I don't know the motherboard model you're looking at. Not that the QVL is a guarantee of anything, but it is better for the RAM to be on it, than not.

The kit you're considering is most likely fine, so long as you're aware we're not sure how many 9800X3D CPUs can run that speed at 1:1. If you want a better guarantee of a one-click overclock, I wouldn't be picking 6400.

Would you go more for a 6000 set?

 

[SpellowHouse]

I did a quite search on all of this and the one that came up again and again is

Corsair CMK32GX5M2B6000Z30​

Its a little slower than you were looking at, but I couldn't see many recommendations for using anything faster than 6000. There are other RGB variations if you want...

 

[Tombs75]

I did a quite search on all of this and the one that came up again and again is

Corsair CMK32GX5M2B6000Z30​

Its a little slower than you were looking at, but I couldn't see many recommendations for using anything faster than 6000. There are other RGB variations if you want...

Thanks so much I will take a look

 

[JollyJamma]

You could go for a 6400 MT/s speed RAM kit and then if that speed doesn't work, set it to a lower EXPO profile such as 6400 or 6200.

As Tetras has said, we don't know how well the 9800X3D overclocks outside of current reviews and it's very very difficult for the average person to get very high RAM OC speeds with your everyday system components.

Even Buildzoid who has multiple very very good overclocking hardware (multiple very high end motherboards and RAM and multiple CPUs) struggles to get stable high overclocks on AM5.

Most of the time, you'll be fine with 6000 or 6200 MT/s RAM with low CAS latency (32 and lower).

 

[SpellowHouse]

You could go for a 6400 MT/s speed RAM kit and then if that speed doesn't work, set it to a lower EXPO profile such as 6400 or 6200.

As Tetras has said, we don't know how well the 9800X3D overclocks outside of current reviews and it's very very difficult for the average person to get very high RAM OC speeds with your everyday system components.

Even Buildzoid who has multiple very very good overclocking hardware (multiple very high end motherboards and RAM and multiple CPUs) struggles to get stable high overclocks on AM5.

Most of the time, you'll be fine with 6000 or 6200 MT/s RAM with low CAS latency (32 and lower).

Also, the performance gain is small. For 10% RAM speed increase the overall performance gain is said to be less than 2% That's not going to make a real-world difference.

 

[aaronyuri]

6000 with CAS 30 is readily available and about as easy as it gets for set and forget. The issue with going above 6000 is, as others have mentioned, that the CPU might not stay 1:1 above that. The performance gain above 6000 and 1:1 is a lot of effort for not much return. I spent a few hours getting 6200 and 1:1 at CAS 28, including fine tuning other timings and the gains were big in synthetic benchmarks. However, no real world performance difference, especially in games. I'm just not CPU limited with a 3090.

Here's one example of a kit: https://www.overclockers.co.uk/team...800c30-6000mhz-dual-channel-ki-my-0b6-tg.html

 

[ElBurge]

My first AM5 build, and I'm also in the queue for 9800x3d. I just picked up some g.skill trident z royals 6000 cl28 expo kit. Pretty much the lowest latency kits on the market, and bling to boot. I intend to run at 6000 and squeeze as much out the timings, as this works best on AM5 I believe. Faster ram doesn't mean more performance, unlike Intel.