Is AMD high-end CPU not suitable for P3D? 64-core P3DV5

Any issues, problems or troubleshooting topics related to computer hardware and the Prepar3D client application
pandaaviation
Posts: 23
Joined: Mon Jul 17, 2017 5:50 am

Is AMD high-end CPU not suitable for P3D? 64-core P3DV5

Postby pandaaviation » Sun Jun 28, 2020 1:46 pm

I recently switched from Intel's system to AMD's 64-core system.
If you start P3D, the CPU usage will rise at regular intervals and P3D will hang.
Is this a problem based on AMD's chiplet structure?
Or is it a problem caused by P3D?

https://www.youtube.com/watch?v=0VCGmWd ... e=youtu.be

OS:windows10 pro
CPU:AMD EPYC7H12 64core 128thread
RAM:DDR4-2666 32GB×8
SSD:intel optane 905P
GPU:nvidia TITAN RTX

P3DV5 HF2 all
none addon default

thanks

superzelle4
Posts: 9
Joined: Thu May 07, 2020 5:12 pm

Re: Is AMD high-end CPU not suitable for P3D? 64-core P3DV5

Postby superzelle4 » Sun Jun 28, 2020 5:49 pm

Hey, i would say you have "to many cores". In P3d is the singel core very important too. Your CPU is i think made more for Workstation servers etc. not for gaming. I am using the ryzen 3700x 8 core in p3dv4 and v5 and i have no problems with stutters or fps.

JorgenSA
Posts: 2245
Joined: Sun Mar 11, 2018 7:17 am
Location: 5 NM NE of EDXF

Re: Is AMD high-end CPU not suitable for P3D? 64-core P3DV5

Postby JorgenSA » Sun Jun 28, 2020 6:19 pm

That AMD EPYC 7H12 is not suited for P3D. It has a base clock rate of 2.6 GHz, below the minimum required, and a "turbo" clock rate of 3.3 GHz, barely above the minimum.

Some articles stated it was intended for liquid-cooled servers.

For P3D you need a high, sustained base clock rate, as high as possible. The number of cores does not matter nearly as much.

Jorgen
System: i7-7700K @ 4.66 GHz, ASUS Z170-A motherboard, 16 GB 3200 MHz DDR4 RAM, nVidia GTX 960 w/ 4 GB DDR5 VRAM, Windows 10 Home.

All views and opinions expressed here are entirely my own. I am not a Lockheed-Martin employee.


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