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AMD EPYC 7642 vs AMD EPYC Embedded 755P: Comparison
What is the difference between EPYC 7642 and EPYC Embedded 755P?
The gap that matters here is l3 cache: EPYC 7642 256 MB against EPYC Embedded 755P 64 MB, which puts EPYC 7642 75% ahead. There is a split on boost clock as well, Up to 3.3 GHz on the EPYC 7642 versus 3 GHz on the EPYC Embedded 755P. Tdp is not the same on both, 225 W on the EPYC 7642 versus 180 W on the EPYC Embedded 755P. They differ on core count too, 48 cores on the EPYC 7642 versus 32 cores on the EPYC Embedded 755P. There is a split on thread count as well, 96 threads on the EPYC 7642 versus 64 threads on the EPYC Embedded 755P. Base clock is not the same on both, 2.3 GHz on the EPYC 7642 versus 2 GHz on the EPYC Embedded 755P.
Which should you buy, EPYC 7642 or EPYC Embedded 755P?
Buy the EPYC 7642 for datacenter and cloud compute and virtualization-dense server workloads, though it is not built for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs. The EPYC Embedded 755P is the one to take for industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is not the pick for consumer desktop or gaming builds and DIY PC upgrades.
Where the two are identical
The common ground is wider than the gap: pcie lanes and socket are identical here.
Specs and benchmarks
Core Count
- AMD EPYC 7642
- 48 cores
- AMD EPYC Embedded 755P
- 32 cores
Thread Count
- AMD EPYC 7642
- 96 threads
- AMD EPYC Embedded 755P
- 64 threads
Base Clock
- AMD EPYC 7642
- 2.3 GHz
- AMD EPYC Embedded 755P
- 2 GHz
Boost Clock
- AMD EPYC 7642
- Up to 3.3 GHz
- AMD EPYC Embedded 755P
- 3 GHz
L3 Cache
- AMD EPYC 7642
- 256 MBBest
- AMD EPYC Embedded 755P
- 64 MB-75%
Socket
- AMD EPYC 7642
- SP3
- AMD EPYC Embedded 755P
- SP3
PCIe Lanes
- AMD EPYC 7642
- 128 lanes
- AMD EPYC Embedded 755P
- 128 lanes
TDP
- AMD EPYC 7642
- 225 W
- AMD EPYC Embedded 755P
- 180 W
Which one should you pick?
Choose 7642 if you want the higher L3 cache (256 MB vs 64 MB) and the higher PCIe lanes (128 lanes vs 128 lanes).
Choose 755P if you already have it on hand or find it at a lower price.