AMD® EPYC™ 7543

The AMD EPYC 7543 is a server processor with 32 cores and 64 threads, built on the Zen 3 architecture. It launched in Mar 2021. Clocks run from 2.8 GHz base to 3.7 GHz boost. A 256-MB L3 cache backs the cores (8.6 MB per core). It supports DDR4 memory. Rated TDP is 225 W. Notable platform capabilities: AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 7543 scores 2,340 in single-core performance and 60,960 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 11,943 for overall performance, 42,900 for productivity performance, 37,740 for creator performance, 85,344 for engineering performance and 22,260 for gaming performance. Its multi-core throughput works out to 1,905 per core, 953 per thread and 271 per watt. Its computed efficiency index is 796. Its performance index is 148, so its overall performance is 48% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the AMD EPYC 7543 scores 280,151 in integer math, 159,273 in floating-point math, 1,012,347 in compression, 65,930 in cryptography, 7,138 in physics simulation, 64,774 in vector SIMD, 702 in the prime sieve and 110,365 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 376% above in integer math, 247% above in floating-point math, 344% above in compression, 474% above in cryptography, 555% above in physics simulation, 318% above in vector SIMD, 948% above in the prime sieve and 387% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The AMD EPYC 7543 has 32 physical cores and runs 64 logical threads. It runs 2 threads per core. It runs at a base clock of 2.80 GHz and boosts up to 3.70 GHz.

The AMD EPYC 7543 is a server processor, belongs to the AMD EPYC family and uses the Zen 3 architecture. It launched in Mar 2021.

The AMD EPYC 7543 has 2 MB of L1 cache, 16 MB of L2 cache and 256 MB of L3 cache. That adds up to about 274.0 MB of cache, or 8.56 MB per core. Each core has 512 KB of private L2 cache.

The AMD EPYC 7543 has a 3-level cache hierarchy: L1 at 2 MB, L2 at 16 MB and L3 at 256 MB. L3 is the largest level and makes up about 93% of the cache listed here.

The AMD EPYC 7543 supports DDR4 memory and uses 8 memory channels. It does not support DDR5 and LPDDR memory.

The AMD EPYC 7543 does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 7543 supports PCI Express 4.0.

The AMD EPYC 7543 has a rated TDP of 225 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Feex has recorded 46% of the specifications it tracks for the AMD EPYC 7543. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, ECC Memory and Max Memory Speed. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: Normalized Name, SKU, Model Number, Processor Number and Part Number.

Processors close to the AMD EPYC 7543 in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include AMD EPYC 9754 Emb, AMD EPYC 9654P, AMD EPYC 9455 Emb, AMD EPYC 9535 and AMD EPYC 9654.