Try asking this question at AMD Forum's Blender Discussion and see if anyone can answer your question there: https://community.amd.com/t5/blender-discussions/bd-p/blender-discussions
Otherwise if no answer open a AMD SUPPORT TICKET and ask them to see what they say from here: https://www.amd.com/en/forms/contact-us/support.html
Found this article from this tech site that asks the same question you have in your post: https://www.cgdirector.com/amd-ryzen-x3d-vs-x/
AMD Ryzen X3D CPUs are pretty similar to their standard X counterparts.
Based on their tiering, the X3D variants still offer the same core and thread count as the X version of that CPU, or in the case of the Ryzen 7 7800X3D, the same core/thread count as the 7 7700X.
The naming is different on that pair, but they are still mostly the same CPU as with the matching-name pairs of Ryzen X and Ryzen X3D CPUs.
Ryzen X3D CPUs make the following changes to the design:
- A massive boost to L3 Cache. AMD calls it “3D V-Cache” due to the manufacturing method actually requiring 3D “stacking” of the L3 Cache onto the main processor cores.
- A downward adjustment to Base and Boost clock speeds. This is usually a few hundred Megahertz.
- A lower peak operating temperature. Because 3D V-Cache requires stacking CPU cache memory directly on top of CPU cores, X3D CPUs are much more sensitive to overheating and require more safeguards. More on those soon!
Now, how do these changes impact your out-of-the-box CPU performance? Let’s sink our teeth in and start the proper battle between CPUs!
AMD Ryzen X3D vs X: Which Is Best For Your Needs?
AMD Ryzen X3D vs X: General Performance
First, let’s start with the obvious question: do Ryzen X3D CPUs have any obvious differences from their X CPU counterparts in general desktop use? For the end user, I would say no.
The Megahertz adjustment on the cores impacts performance in some areas, but these differences should be pretty much undetectable for general desktop use like web browsing or media consumption.
All your cores and threads will still work fine on the X3D version of the CPU, and at the Ryzen 7/Ryzen 9 points where these CPUs currently start being sold, you’re already well beyond the necessary CPU budget for a smooth, seamless desktop use experience.
To properly appreciate the difference these CPUs actually have to offer, we’ll need to take a look at heavy-duty workloads.
AMD Ryzen X3D vs X: Rendering and Productivity Performance
AMD Ryzen CPUs have always been fairly popular for rendering and productivity performance. AMD CPUs have generally focused on offering superior multi-core performance for the dollar for a long time now, even before the launch of Ryzen in 2017.
The caveat to this has always been reduced single-core performance when compared to the latest and greatest from Intel, though Ryzen has significantly improved AMD’s per-core performance, enough to reignite competition in the CPU market.
For professional purposes, AMD Ryzen’s marginal disadvantages in per-core performance have typically been easily overshadowed by their great performance-per-dollar.
If you know how to put that raw throughput to use in your workloads and aren’t reliant on any Intel-specific features, Ryzen CPUs are known to be multi-core powerhouses.
So, what about Ryzen X3D CPUs? It turns out this is the key compromise between Ryzen X3D and Ryzen X CPUs.
Multi-core performance actually takes a hit on Ryzen X3D CPUs, and this hit results in an overall performance loss for rendering and productivity applications reliant upon raw multi-core throughput.
The severity of this performance loss is going to depend on your specific Ryzen X3D CPU. However, the most severe example of this discrepancy is present on the original Ryzen X3D CPU, the Ryzen 7 5800X3D, compared to the Ryzen 7 5800X.
As you can see, the best-case scenario for the Ryzen 7 5800X3D is photo editing. Once you start putting it through its paces in heavy-duty rendering and code compilation workloads that scale well across many cores, the weaknesses of the 5800X3D begin to show themselves.
When we move onto the 7900X3D and the 7950X3D, most productivity workloads have improved to be more on par with the non-3D CPUs. However, video editing with DaVinci Resolve has taken a considerable dip.
o even though newer X3D CPUs improve upon the multi-core compromises X3D introduces, the best choice for a professional will nearly always be the Ryzen X CPUs, especially where pricing is concerned.
EDIT: I always thought the x3D in the processor's model meant the same as 3d Video not that the L3 is stacked in 3 layers.
So I presumed wrongly the this particular x3D Processor was made for Video type programs and viewing.
