[bravebear]

The AMD platform is:
CPU: 2990WX (32 cores (64 threads))
RAM: 64GB of DDR4-2400 (16GB*4)
SSD: INTEL 960P 512GB (NVME)
GPU: GTX 1080Ti

The Intel platform is:
CPU: E5-2696V4*2 (22 cores (44 threads) per CPU)
RAM: 128GB of DDR4-2400 RECC (16GB*8)
SSB: SAMSUNG 860evo (SATA)
GPU: GTX 1060Ti

OS are Windows 10 Pro in both platforms.

The 2990wx has 4 dies in the CPU, 2 of them (die 0, die 2 ) connect to the RAMs directly, and the other 2 dies access to the RAMs through die 0 and die 2 respectively. The review from pcworld indicated that the per-core bandwidth of 2990wx is only 2GB/s when all cores were used, an obvious delay of memory access would be expected in this situation. The core to core bandwidth of using 2 dies (16 cores) is 5GB/s,

In my case, I utilized 16 cores (32 threads) to solve CFD cases (in SimVascular) of 3M and 5M elements on both platforms (32 threads), the Intel one is almost 3 times faster than the AMD platform. I tried to perform the simulations in UBUNTU 18.04 on AMD platform, still falls far behind the Intal one.

What will help to improve the performance of the 2990wx platform? Will there be a boost improved performance if I use high-frequency RAM (DDR4-2666 OR 3600)? Or I should insert all the 8 DIMMs with ram?

Suggestions are appreciated!

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link to PCWORLD's review
https://www.pcworld.com/article/3298...rformance.html