AMD® EPYC™ 4585PX

The AMD EPYC 4585PX 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 4.3 GHz base to 5.7 GHz boost. A 128-MB L3 cache backs the cores (9.0 MB per core). It supports DDR5 memory. The chip drops into the AM5 socket and exposes PCIe 5.0 (28 lanes). Rated TDP is 170 W.

The AMD EPYC 4585PX scores 4,538 in single-core performance and 68,908 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 17,683 for overall performance, 51,143 for productivity performance, 46,068 for creator performance, 79,244 for engineering performance and 30,841 for gaming performance. Its multi-core throughput works out to 4,307 per core, 2,153 per thread and 405 per watt. Its computed efficiency index is 1,356. Its performance index is 219, so its overall performance is 119% 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 4585PX scores 248,563 in integer math, 153,219 in floating-point math, 884,774 in compression, 47,224 in cryptography, 6,612 in physics simulation, 69,457 in vector SIMD, 547 in the prime sieve and 95,210 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 322% above in integer math, 234% above in floating-point math, 288% above in compression, 311% above in cryptography, 507% above in physics simulation, 348% above in vector SIMD, 716% above in the prime sieve and 320% 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 4585PX has 16 physical cores and runs 32 logical threads. It runs 2 threads per core. It runs at a base clock of 4.30 GHz and boosts up to 5.70 GHz.

The AMD EPYC 4585PX 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 4585PX has 16 MB of L2 cache and 128 MB of L3 cache. That adds up to about 144.0 MB of cache, or 9.00 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 4585PX has a 2-level cache hierarchy: L2 at 16 MB and L3 at 128 MB. L3 is the largest level and makes up about 89% of the cache listed here.

The AMD EPYC 4585PX 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 4585PX does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 4585PX uses the AM5 socket, supports PCI Express 5.0 and provides up to 28 PCIe lanes.

The AMD EPYC 4585PX has a rated TDP of 170 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 4585PX is manufactured by TSMC. It launched at a price of $699.

Feex has recorded 55% of the specifications it tracks for the AMD EPYC 4585PX. 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 4585PX and have the closest multi-core scores in the Feex database include AMD Ryzen 9 9950X3D, AMD Ryzen 9 9950X, AMD Ryzen 9 PRO 9965, AMD Ryzen 9 9950X3D2 and AMD EPYC 4564P.