01
Conditional verdict
Choose the EPYC 7443P when 24 cores, 48 threads and two 3.84 TB NVMe devices meet the workload with sensible headroom. Choose the EPYC 7513 when the plan needs 32 cores, 64 threads or four 3.84 TB devices and the software can use those resources.
The same 256 GB memory ceiling means that moving to the EPYC 7513 changes the compute-to-memory ratio. A highly memory-bound workload may gain no useful concurrency simply because eight more cores are available. Measure memory pressure and CPU queues together.
02
Treat additional cores as capacity, not a promise
For virtualization, translate the extra cores into an admission policy only after reserving host capacity and observing guest contention. For parallel jobs, confirm that the application scales beyond 24 cores. Serial stages, locks, storage waits and license limits can prevent the additional threads from reducing completion time.
No single-thread, multi-thread or power measurement is included in the catalogue. The comparison can describe the listed resource envelope but cannot name a performance winner for an unspecified workload.
03
Two larger choices become four-device choices
The EPYC 7443P provides 7.68 TB raw across two devices. The EPYC 7513 provides 15.36 TB raw across four. Four devices permit layouts that two devices cannot provide, but usable capacity, write behaviour and fault tolerance depend on the selected RAID or filesystem design.
More devices do not remove the need for backup and restore testing. Confirm device model and endurance for write-heavy work, and test the storage path rather than assuming raw capacity predicts I/O.
04
Order against a written requirement
Record required cores, peak memory, usable storage, failure tolerance and network pattern. Select the smaller configuration if it clears every threshold; select the larger one when a named threshold requires it. The current table supplies the price comparison without fixing prices in this guidance.
Direct answers
Questions before you order
Do four NVMe devices automatically make the EPYC 7513 faster?
No. Device count creates layout options, but performance depends on device characteristics, filesystem or RAID design, queue depth and the workload. No measured result is published here.
Which server is better for a Proxmox host?
Use the EPYC 7443P if its 24 cores, 256 GB and two-device storage plan fit. Use the EPYC 7513 when guest density or a four-device design is a documented requirement.