AMD® EPYC™ 7643P

The AMD EPYC 7643P is a server processor with 48 cores and 96 threads, built on the Zen 3 architecture. It launched in Sep 2023. Clocks run from 2.3 GHz base to 3.6 GHz boost. A 256-MB L3 cache backs the cores (5.3 MB per core). It supports DDR4 memory. Rated TDP is 225 W. Notable platform capabilities: AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 7643P scores 2,655 in single-core performance and 77,307 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 14,327 for overall performance, 53,967 for productivity performance, 47,298 for creator performance, 108,230 for engineering performance and 27,292 for gaming performance. Its multi-core throughput works out to 1,611 per core, 805 per thread and 344 per watt. Its computed efficiency index is 955. Its performance index is 178, so its overall performance is 78% 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 7643P scores 390,775 in integer math, 216,592 in floating-point math, 1,326,051 in compression, 95,606 in cryptography, 8,002 in physics simulation, 67,398 in vector SIMD, 651 in the prime sieve and 160,274 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 564% above in integer math, 372% above in floating-point math, 481% above in compression, 732% above in cryptography, 634% above in physics simulation, 335% above in vector SIMD, 872% above in the prime sieve and 608% 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 7643P has 48 physical cores and runs 96 logical threads. It runs 2 threads per core. It runs at a base clock of 2.30 GHz and boosts up to 3.60 GHz.

The AMD EPYC 7643P is a server processor, belongs to the AMD EPYC family and uses the Zen 3 architecture. It launched in Sep 2023.

The AMD EPYC 7643P has 256 MB of L3 cache. That adds up to about 256.0 MB of cache, or 5.33 MB per core. Feex has no recorded L1 cache size for this processor.

The AMD EPYC 7643P supports DDR4 memory and uses 8 memory channels. It does not support DDR5 and LPDDR memory.

The AMD EPYC 7643P does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 7643P supports PCI Express 4.0.

The AMD EPYC 7643P 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 42% of the specifications it tracks for the AMD EPYC 7643P. 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: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core) and 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 7643P in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include AMD EPYC 9455 Emb, AMD EPYC 9455P, AMD EPYC 9475F, AMD EPYC 9754 Emb and AMD EPYC 9654P.