AMD® EPYC™ 4545P

The AMD EPYC 4545P is a server processor with 16 cores and 32 threads, built on the Zen 5 architecture (4 nm process). It launched in May 2025. Clocks run from 3.0 GHz base to 5.4 GHz boost. A 64-MB L3 cache backs the cores (5.0 MB per core). It supports DDR5 memory. The chip drops into the AM5 socket and exposes PCIe 5.0 (28 lanes). Rated TDP is 65 W.

The AMD EPYC 4545P scores 4,318 in single-core performance and 53,504 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 15,200 for overall performance, 40,823 for productivity performance, 37,200 for creator performance, 61,530 for engineering performance and 26,330 for gaming performance. Its multi-core throughput works out to 3,344 per core, 1,672 per thread and 823 per watt. Its computed efficiency index is 1,885. Its performance index is 188, so its overall performance is 88% 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 4545P scores 213,485 in integer math, 126,505 in floating-point math, 636,279 in compression, 37,598 in cryptography, 3,260 in physics simulation, 46,231 in vector SIMD, 292 in the prime sieve and 73,850 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 262% above in integer math, 176% above in floating-point math, 179% above in compression, 227% above in cryptography, 199% above in physics simulation, 198% above in vector SIMD, 336% above in the prime sieve and 226% 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 4545P has 16 physical cores and runs 32 logical threads. It runs 2 threads per core. It runs at a base clock of 3.00 GHz and boosts up to 5.40 GHz.

The AMD EPYC 4545P is a server processor, belongs to the AMD EPYC family, uses the Zen 5 architecture and is manufactured on a 4 nm process. It launched in May 2025.

The AMD EPYC 4545P has 16 MB of L2 cache and 64 MB of L3 cache. That adds up to about 80.0 MB of cache, or 5.00 MB per core. Each core has 1 MB of private L2 cache. Feex has no recorded L1 cache size for this processor.

The AMD EPYC 4545P has a 2-level cache hierarchy: L2 at 16 MB and L3 at 64 MB. L3 is the largest level and makes up about 80% of the cache listed here.

The AMD EPYC 4545P supports DDR5 memory, uses 2 memory channels, runs memory at up to 5,600 MT/s and delivers up to 89.6 GB/s of memory bandwidth. It does not support DDR4 and LPDDR memory.

The AMD EPYC 4545P does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 4545P uses the AM5 socket, supports PCI Express 5.0 and provides up to 28 PCIe lanes.

The AMD EPYC 4545P has a rated TDP of 65 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.

The AMD EPYC 4545P is manufactured by TSMC. It launched at a price of $549.

Feex has recorded 55% of the specifications it tracks for the AMD EPYC 4545P. 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) and L4 Cache. Memory Support: ECC Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size and Die Count. Naming & Aliases: Normalized Name, SKU, Model Number, Processor Number and Part Number.

Processors that use the same AM5 socket as the AMD EPYC 4545P and have the closest multi-core scores in the Feex database include AMD Ryzen 9 PRO 9955, AMD Ryzen 9 9900X, AMD Ryzen 9 7900X, AMD Ryzen 9 9900X3D and AMD EPYC 4484PX.