That is not true. I ran these tests at 1080p, which is the default benchmark for CPU performance, as it reduces GPU bottlenecking. I also adjusted my graphics settings to favor a CPU bottleneck. It’s very obvious that the sim favors the Vcache cores. Look at the latencies, and the FPS (particularly the 1% Lows.)
The result of my testing is that I do the following running the sim @ 4K:
Most settings Ultra/High
DLSS Quality
HAGS OFF
Windows Game Mode OFF
Xbox Game Bar OFF
Bitsum Process Lasso assigns the sim to the Vcache core only. Everything else goes on the non-Vcache cores.
Bitsum Core Park app disables all core parking.
Ultimate Power Plan.
There are a few other tweaks I’ve done. But the bottom line is that I’ve got the sim running extremely well, and the Vcache cores ARE being utilized.
I think Process Lasso is a must with the 7950X3D (and probably any other mulit-chiplet design with Vcache on one chiplet, and non-Vcache on the other.