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threadripper ram difference

maxtate
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Posted

Hi guys, 

New to the forum

I built a new threadripper platform, and i'm obsessing over the ram.  Primary use 3d rendering, houdini simulations (ram intensive)

Question:

is there a huge performance difference between 2600 and 3200?

thanks in advance.

threadripper 1950x

asus rog zen xtreme x399

gtx1080ti

nzxt Kraken x62

corsair 64g 16x4 ddr 4 2666

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Posted

You're gonna invest all this money into a new platform, and you're gonna cheap out on the ram?
Get the faster set :^)

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If Houdini simulations are really ram bound you should definitely go for faster ram. I wouldn't be surprised if you saw as much as a 10% performance increase just from faster ram.

 

EDIT: If anything you could get a cheaper mobo and use the money saved to get 64gb of b die ram

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I would suggest rather than telling this guy that we should just get the faster RAM, we should understand what Theadripper RAM support is.

 

I know with AM4, 2666mhz seems to be a peak for dual rank high capacity (16GB) RAM DIMMs.

 

I would reference the QVL of the motherboard and see what is actually supported before just saying "go faster" as he may not even support it.

 

 

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Memory support has been rough, but it's getting better. I've tried many memory kits, but cannot hit 3200. 2933 seems to be it right now at 64GB. Though I have not had time to update to the BIOS that just came out w/ the introduction of NVMe RAID. I will say that I get higher CB scores @ 2666 vs 2933. Keep in mind that this is synthetic and may hold no real world weight. If you want I can run some houdini simulations at both speeds as a benchmark for you. Though I have never done it and will need some guidance.

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25 minutes ago, Jon Jon said:

I would suggest rather than telling this guy that we should just get the faster RAM, we should understand what Theadripper RAM support is.

 

I know with AM4, 2666mhz seems to be a peak for dual rank high capacity (16GB) RAM DIMMs.

 

I would reference the QVL of the motherboard and see what is actually supported before just saying "go faster" as he may not even support it.

 

 

Jon Jon,

Are you saying that in 16gig sticks, 2666 is about as fast as it gets?

 

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5 minutes ago, maxtate said:

Jon Jon,

Are you saying that in 16gig sticks, 2666 is about as fast as it gets?

 

I am saying that on Socket AM4, based on my research when I was building my machine, that 16GB DIMMs could only hit 2666 max.

 

However, referencing the QVL for this user's motherboard may shed light into Threadripper and what the IMC is able to do.

 

The answers are there.

Desktop:

AMD Ryzen 7 @ 3.9ghz 1.35v w/ Noctua NH-D15 SE AM4 Edition

ASUS STRIX X370-F GAMING Motherboard

ASUS STRIX Radeon RX 5700XT

Corsair Vengeance LPX 16GB (2x 8GB) DDR4 3200

Samsung 960 EVO 500GB NVME

2x4TB Seagate Barracuda HDDs

Corsair RM850X

Be Quiet Silent Base 800

Elgato HD60 Pro

Sceptre C305B-200UN Ultra Wide 2560x1080 200hz Monitor

Logitech G910 Orion Spectrum Keyboard

Logitech G903 Mouse

Oculus Rift CV1 w/ 3 Sensors + Earphones

 

Laptop:

Acer Nitro 5:

Intel Core I5-8300H

Crucial Ballistix Sport LT 16GB (2x 8GB) DDR4 2666

Geforce GTX 1050ti 4GB

Intel 600p 256GB NVME

Seagate Firecuda 2TB SSHD

Logitech G502 Proteus Spectrum

 

 

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2 minutes ago, maxtate said:

thx!

 

No problem!

 

If you are running RAM intensive workloads, you will want the fastest RAM possible.

 

Let us know what the QVL says!

 

Desktop:

AMD Ryzen 7 @ 3.9ghz 1.35v w/ Noctua NH-D15 SE AM4 Edition

ASUS STRIX X370-F GAMING Motherboard

ASUS STRIX Radeon RX 5700XT

Corsair Vengeance LPX 16GB (2x 8GB) DDR4 3200

Samsung 960 EVO 500GB NVME

2x4TB Seagate Barracuda HDDs

Corsair RM850X

Be Quiet Silent Base 800

Elgato HD60 Pro

Sceptre C305B-200UN Ultra Wide 2560x1080 200hz Monitor

Logitech G910 Orion Spectrum Keyboard

Logitech G903 Mouse

Oculus Rift CV1 w/ 3 Sensors + Earphones

 

Laptop:

Acer Nitro 5:

Intel Core I5-8300H

Crucial Ballistix Sport LT 16GB (2x 8GB) DDR4 2666

Geforce GTX 1050ti 4GB

Intel 600p 256GB NVME

Seagate Firecuda 2TB SSHD

Logitech G502 Proteus Spectrum

 

 

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http://dlcdnet.asus.com/pub/ASUS/mb/socketTR4/ROG_ZENITH_EXTREME/ROG_Zenith_Extreme_Memory_QVL_2133-3466.pdf?_ga=2.162885113.410603955.1506540261-1068631459.1490894970

 

proof is in the pudding.

there is no support on the qvl for 16gx4 3200 so spending more on the fancy trident RGB 3200 ddr 4 16x4 won't really work. 

tops is 3000.  i validated this with asus tech support. 

In fact, the max supported in ddr 4 3200 is 32 gigs?  I wonder why?

Anyway, does it make sense to remove my 2666 in exchange for the 3000 or just leave it.

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5 minutes ago, maxtate said:

http://dlcdnet.asus.com/pub/ASUS/mb/socketTR4/ROG_ZENITH_EXTREME/ROG_Zenith_Extreme_Memory_QVL_2133-3466.pdf?_ga=2.162885113.410603955.1506540261-1068631459.1490894970

 

proof is in the pudding.

there is no support on the qvl for 16gx4 3200 so spending more on the fancy trident RGB 3200 ddr 4 16x4 won't really work. 

tops is 3000.  i validated this with asus tech support. 

In fact, the max supported in ddr 4 3200 is 32 gigs?  I wonder why?

Anyway, does it make sense to remove my 2666 in exchange for the 3000 or just leave it.

Try OCing your 2666 to 2933. Make sure you set the command rate to 2T. If you have a late enough BIOS it should do that automatically.

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3 minutes ago, Legendarypoet said:

Try OCing your 2666 to 2933. Make sure you set the command rate to 2T. If you have a late enough BIOS it should do that automatically.

will give that a try, why 2t?

I will update the bios prior obviously

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39 minutes ago, maxtate said:

will give that a try, why 2t?

I will update the bios prior obviously

According to Asus (and my own experience), Memory instability occurs above 2820 @ 1T. 

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