New 3D/VFX build

Hardware Build a PC
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hi,

PCPartPicker Part List:

CPU: AMD Ryzen 9 5950X 3.4 GHz 16-Core Processor
CPU Cooler: Asus ROG RYUJIN 360 121.8 CFM Liquid CPU Cooler
Motherboard: Asus ROG Crosshair VIII Hero (WI-FI) ATX AM4 Motherboard
Memory: G.Skill Trident Z Neo 128 GB (4 x 32 GB) DDR4-3600 CL18 Memory
Storage: Sabrent Rocket 4.0 1 TB M.2-2280 NVME Solid State Drive
Video Card: Asus GeForce RTX 3080 10 GB TUF GAMING Video Card
Case: Fractal Design Meshify 2 XL ATX Full Tower Case
Power Supply: Corsair RMi 850 W 80+ Gold Certified Fully Modular ATX

Building my first PC since a Intel Celeron back in the day.
Need some help in RAM selection,

I’m building a new PC with Asus Crosshair VIII Hero and AMD 5950x for 3D and VFX work (75% 25% gaming) mainly Nuke & Houdini.

I’m Looking at recommendations for 4x 32GB = 128GB
I’ve seen recommendations for G.Skill and checked their QVL and these are listed:

Trident Z Neo DDR4-3600MHz CL18-22-22-42 1.35V 128GB (4x32GB)
Trident Z RGB DDR4-3600MHz CL16-22-22-42 1.45V 128GB (4x32GB)

  • which one? The voltage is lower in the Neo ?
  • should I look at higher speed than 3600 ?
  • Also not decided on case, Meshify 2XL or Phaneks 500a

thanks

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I would take second NVME and mirror them. When one craps out you will be able to continue working until replacement.

As for memory. CL16 obviously has bit lower latency, but that voltage, I’m not sure. Someone else would have to pitch in if 1.45V is reasonable.
As for higher frequencies, you can generally CL/MTs to find out if its better.
But if you found QVL setup you happy with, then it’s probably higher chance it will go advertised speed, than kit that is not on QVL.
In other words, memory advertised as 4000MTs OC may only go to 3600 with 4 DR sticks, and you will probably have higher CL, and you will pay more for it.

I don’t have anything to say about case. Get one that has good air vents :wink:

Edit: Ah, Wendell mentioned recently, that he got few frames more in SOTR with 4000MTs. But I don’t recall what latency. Also still too expensive imo.

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Thank you @misiektw

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Just the RAM left to buy I went for Meshify XL (after @wendell 's review) and Artic cooler 420.

This kit is also available from Crucial 2x 32GB
Crucial Ballistix RGB 64GB Kit (2 x 32GB) DDR4-3600 Desktop Gaming Memory (Black) BL2K32G36C16U4BL which is on the Asus QVL.
DDR4 PC4-28800 • 16-18-18-38 • Unbuffered • NON-ECC • DDR4-3600 • 1.35V

The G.Skill Trident Neo kit is a set of four 32GB modules, does this provide any benefit over selecting 2x (2x 32GB) kits from Crucial?

Any experience of either please? thanks

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See if you can pick up the 2x32 neo cl14 kit from gskill?

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Hi @wendell ,

G.Skill announced New Neo kits and the 32GB is available in:
3800 mhz 18-22-22-22-42
4000 mhz 18-22-22-22-42

not seen them for sale yet in UK.

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3600MTs@16 you mentioned earlier has lower latency than those two. At least on paper.

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Thanks again @misiektw , is it a balance between speed and latency, and then cost?

I looked at these videos


and they recommend 3200/3600 with around a lower latency is the sweet spot.

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Latency is speed in most cases, althou sometimes with things like infinity fabric if its clock is tied to memory clock then it might vary,

And as for single property that you can judge better buy, would be “cost per nanosecond^-1” I suppose.
Of course assuming you comparing same type of memory.

You can get transfer latency dividing CL/MTs. So simplified way to calculate absolute memory value would be something like:
v = MTs*price/CL

But you could extend that for rest of timings…

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