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AMD EPYC Embedded 7552 vs AMD EPYC Embedded 7643: Comparison
EPYC Embedded 7552 vs EPYC Embedded 7643: the l3 cache difference
The gap that matters here is l3 cache: EPYC Embedded 7552 192 MB against EPYC Embedded 7643 256 MB, which puts EPYC Embedded 7643 25% ahead. They differ on boost clock too, 3.3 GHz on the EPYC Embedded 7552 versus 3.6 GHz on the EPYC Embedded 7643. There is a split on tdp as well, 200 W on the EPYC Embedded 7552 versus 225 W on the EPYC Embedded 7643. Core architecture is not the same on both, Zen 2 on the EPYC Embedded 7552 versus Zen 3 on the EPYC Embedded 7643. They differ on base clock too, 2.2 GHz on the EPYC Embedded 7552 versus 2.3 GHz on the EPYC Embedded 7643. There is a split on usb as well, 4x USB 3.1 Gen1 on the EPYC Embedded 7552 versus 4x USB 3.0 Gen1 on the EPYC Embedded 7643.
Which should you buy, EPYC Embedded 7552 or EPYC Embedded 7643?
The EPYC Embedded 7552 suits industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is the wrong buy for consumer desktop or gaming builds and DIY PC upgrades. Buy the EPYC Embedded 7643 for industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is not built for consumer desktop or gaming builds and DIY PC upgrades.
Where the two are identical
Everything else lines up. Pcie lanes, core count, thread count, socket and memory type read the same on both, so those are not worth weighing. They match on 4 further specifications as well.
Frequently asked questions
Is the Security Processor the same on the EPYC Embedded 7552 and EPYC Embedded 7643?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Core Count
- AMD EPYC Embedded 7552
- 48 cores
- AMD EPYC Embedded 7643
- 48 cores
Thread Count
- AMD EPYC Embedded 7552
- 96 threads
- AMD EPYC Embedded 7643
- 96 threads
Core Architecture
- AMD EPYC Embedded 7552
- Zen 2
- AMD EPYC Embedded 7643
- Zen 3
Base Clock
- AMD EPYC Embedded 7552
- 2.2 GHz
- AMD EPYC Embedded 7643
- 2.3 GHz
Boost Clock
- AMD EPYC Embedded 7552
- 3.3 GHz
- AMD EPYC Embedded 7643
- 3.6 GHz
L3 Cache
- AMD EPYC Embedded 7552
- 192 MB-25%
- AMD EPYC Embedded 7643
- 256 MBBest
Socket
- AMD EPYC Embedded 7552
- SP3
- AMD EPYC Embedded 7643
- SP3
Memory Type
- AMD EPYC Embedded 7552
- DDR4-3200
- AMD EPYC Embedded 7643
- DDR4-3200
PCIe Lanes
- AMD EPYC Embedded 7552
- 128 lanes
- AMD EPYC Embedded 7643
- 128 lanes
TDP
- AMD EPYC Embedded 7552
- 200 W
- AMD EPYC Embedded 7643
- 225 W
Security Processor
- AMD EPYC Embedded 7552
- Yes
- AMD EPYC Embedded 7643
- Yes
Memory Controller
- AMD EPYC Embedded 7552
- 8 Channel w/ECC
- AMD EPYC Embedded 7643
- 8 Channel w/ECC
USB
- AMD EPYC Embedded 7552
- 4x USB 3.1 Gen1
- AMD EPYC Embedded 7643
- 4x USB 3.0 Gen1
SATA
- AMD EPYC Embedded 7552
- 32
- AMD EPYC Embedded 7643
- 32
Low Speed Interfaces
- AMD EPYC Embedded 7552
- GPIO , I2C , LPC , SMBus , SPI , UART
- AMD EPYC Embedded 7643
- GPIO , I2C , LPC , SMBus , SPI , UART
Which one should you pick?
Choose 7552 if you want the higher PCIe lanes (128 lanes vs 128 lanes) and the higher SATA (32 vs 32).
Choose 7643 if you want the higher L3 cache (256 MB vs 192 MB).