Amd Epyc 7543

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

19 来源

The AMD EPYC 7543 remains a significant player in the high-density server market, striking a balance between core density (32 cores) and cache performance. Based on "Milan" (Zen 3) architecture, it has transitioned from a premium flagship to a high-value secondary market option in 2026.

Product Overview & Performance

* Architecture (Zen 3): Features a unified 256MB L3 cache which drastically reduces latency compared to the previous Zen 2 "Rome" generation. It supports 8-channel DDR4-3200 memory and 128 lanes of PCIe 4.0 Amd.

* Benchmarks: The processor achieves an average PassMark multi-thread score of 60,960, placing it among the top 150 fastest server CPUs currently in the database Cpubenchmark.

* Key Specs: 32 Cores / 64 Threads, 2.8 GHz Base / 3.7 GHz Boost, 225W TDP Amd Servermonkey.

Market Trends & Insights

* Pricing Shift: Originally launched with an MSRP of $3,761, the EPYC 7543 has seen a sharp price correction on secondary and B2B markets. Current refurbished units are available for as low as $755 to $1,200 Amd Serversupply Servermonkey.

* Market Position: While surpassed in raw performance by the EPYC 9004 (Genoa) series, the 7543 is increasingly sought after for budget-conscious hyper-converged infrastructure (HCI) and specialized analytics workloads where PCIe 4.0 lanes and large L3 cache are more critical than the move to DDR5.

* Sourcing Caution: A high volume of secondary market units are vendor-locked (e.g., to Dell or HP systems), which significantly impacts compatibility for custom white-box builds.

Sourcing Opportunities

I have identified several B2B suppliers offering wholesale quantities of the EPYC 7543. Prices range from $650 to $1,121 per unit depending on condition (New vs. Used) and order volume.

Detailed specifications and wholesale supplier profiles are included in the deliverables below.

I have provided detailed market data and B2B sourcing options for the AMD EPYC 7543. You can continue with:

Sources & References

19 sources cited · Verified industry data & reports

AMD EPYC™ 7543

AMD

AMD EPYCTM 7543 Achieve exceptional performance and energy efficiency. CPU Cores 32 # of Threads 64 Max. Boost Clock Up to 3.7 GHz Base Clock 2.8 GHz L3 Cache ...

AMD EPYC 7543 Specs - CPU Database

TechPowerUp

EPYC 7543 has 256 MB of L3 cache and operates at 2.8 GHz by default, but can boost up to 3.7 GHz, depending on the workload. processor supports DDR4 memory ...

Slow and inconsistent results from AMD EPYC 7543 with ...

Reddit · r/HPC

Now the speed has come down to 18 seconds and seems consistent each time I run it. Still a few seconds slower than the 48-core Xeon Gold chips.

AMD EPYC™ 7543 CPU - Hyperscale

hyperscalers.com

32 CPU Cores 64 Threads Max Boost Clock: Up to 3.7GHz Base Clock: 2.8GHz ・ up to 64 cores, 128 ・ up to 4 TB of memory across 16 DIMM slots, ...

AMD EPYC 7543 Processor 100-000000345 32Cores ...

Newegg

Buy AMD EPYC 7543 Processor 100-000000345 32Cores 64Threads 2.80/3.70GHz Clock 256MB L3 Cache 225W TDP 1P/2P TRAY with fast shipping and top-rated customer ...

AMD Epyc 7542 vs AMD Epyc 7543: What is the difference?

Versus

Why is AMD Epyc 7543 better than AMD Epyc 7542? ; L3 core, 8 MB/core, 4 MB/core ; Geekbench 6 result (multi), 13,502, 9,536 ; PassMark result, 62,952, 45,359 ...