Make suitable BIOS settings on both machines. The following naming is from the AMD CBS reference, which vendors might expose differently:
- CPU Common Options → Performance → SMT Control → Disable
- DF Common Options → Memory Addressing → NUMA nodes per socket → NPS4
- NBIO Common Options → IOMMU/Security / IOMMU → IOMMU → Disable
- NBIO Common Options → SMU Common Options → Determinism Control → Manual
- NBIO Common Options → SMU Common Options → Determinism Enable → Power
- NBIO Common Options → SMU Common Options → APBDIS → 1
- NBIO Common Options → SMU Common Options → DfPstate → 0
- NBIO Common Options → SMU Common Options → Power Profile Selection → Maximum IO Performance Mode
- NBIO Common options → PCIe → PCIe Idle Power Setting → Latency Optimized