Yeah, multicore performance, what macos killer app really cares about that?I have priced an X99 dual CPU system and a 13th Gen Intel system. To get comparable multi-core performance, a newer system costs 3x more for the barebone components ex-GPU and storage. A newer system has faster single-core performance and a bit better power efficiency at load, that's pretty much it. For the X99, I get three x16 PCIe 3 and three x8 PCIe 3 slots, plus two 2.5G network port and 2x NVME slots directly to the CPU.
In fact, if I sell my current working MacPro4,1 with 96GB RAM, I could pretty much cover the barebone cost of the new X99 systems which I plan to mod into the dead MacPro case. (Mac Pro price is higher in Australia).
Given the dual xeon Mac Pro 5,1 can do sleep and power management properly in both Monterey and Ventura, shouldn't it also be possible for a X99 system?
Yes you will get nice cinebench screenshots, if you can get it to boot...awesome