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本帖最后由 David_R 于 2026-3-9 10:34 编辑
My guess is that the 8171M will significantly outperform the 6133 and 5220.
From my experience with Cascade lake and Ice lake Xeons, I found these wikipedia pages (Cascade lake, and Skylake) to be a reliable source of specs, including all-core turbo frequencies. You'd expect to get a modest IPC uplift upon going from Skylake to Cascade lake, but not enough to offset the core-count and all-core turbo boost advantage that the 8171M has.
I find Asrock Rack boards to have very good compatibility, even with off-roadmap Xeon CPUs. Nonetheless, here's the confirmed CPU compatibility list. The 5220 is listed on there (make sure you upgrade the BIOS if necessary), but I also expect the 6133 to work just fine (if not, rolling back to a previous BIOS might be necessary).
If minimising energy consumption and heat production is really important to you, then upgrading might make sense. There will likely be some performance drop, but it won't completely stop you from doing any of your typical workflows, they'll just take slightly longer.
Another consideration that if your workflows are memory-bound, then Cascade lake supports higher memory frequencies (up to 2933 MHz). Also, this generation supports Optane persistent memory, which can be a very cost effective way of increasing memory capacity (very useful if latency is not a bottleneck). Alternatively, Optane can be used as very low-latency and high write-endurance scratch storage, which is certainly useful for DFT calculations. 128GB DIMMs are only about 500-750 RMB currently, but you'll probably need to change your motherboard as I don't think this one is compatible.
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