AMD® EPYC™ 9355P

The AMD EPYC 9355P is a server processor with 32 cores and 64 threads, built on the Zen 5 architecture (4 nm process). It launched in Oct 2024. Clocks run from 3.55 GHz base to 4.4 GHz boost. A 256-MB L3 cache backs the cores (9.1 MB per core). It supports DDR5 memory. The chip drops into the SP5 socket and exposes PCIe 5.0 (128 lanes). Rated TDP is 280 W. Notable platform capabilities: AVX-512, AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 9355P scores 3,743 in single-core performance and 97,041 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 19,058 for overall performance, 68,317 for productivity performance, 60,110 for creator performance, 135,857 for engineering performance and 35,489 for gaming performance. Its multi-core throughput works out to 3,033 per core, 1,516 per thread and 347 per watt. Its computed efficiency index is 1,139. Its performance index is 236, so its overall performance is 136% 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 9355P scores 412,067 in integer math, 256,635 in floating-point math, 1,429,976 in compression, 80,961 in cryptography, 13,515 in physics simulation, 107,622 in vector SIMD, 1,044 in the prime sieve and 176,697 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 600% above in integer math, 459% above in floating-point math, 527% above in compression, 605% above in cryptography, 1,140% above in physics simulation, 594% above in vector SIMD, 1,458% above in the prime sieve and 680% 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 9355P has 32 physical cores and runs 64 logical threads. It runs 2 threads per core. It runs at a base clock of 3.55 GHz and boosts up to 4.40 GHz. Its clock multiplier is unlocked for overclocking.

The AMD EPYC 9355P is a server processor, belongs to the AMD EPYC family, uses the Zen 5 architecture, carries the codename Turin and is manufactured on a 4 nm process. It launched in Oct 2024.

The AMD EPYC 9355P has 2.50 MB of L1 cache, 32 MB of L2 cache and 256 MB of L3 cache. That adds up to about 290.5 MB of cache, or 9.08 MB per core. Each core has 1 MB of private L2 cache.

The AMD EPYC 9355P has a 3-level cache hierarchy: L1 at 2.5 MB, L2 at 32 MB and L3 at 256 MB. L3 is the largest level and makes up about 88% of the cache listed here.

The AMD EPYC 9355P supports DDR5 memory, uses 12 memory channels, runs memory at up to 6,400 MT/s and delivers up to 614.4 GB/s of memory bandwidth. It does not support DDR4 and LPDDR memory.

The AMD EPYC 9355P does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 9355P uses the SP5 socket, supports PCI Express 5.0 and provides up to 128 PCIe lanes.

The AMD EPYC 9355P has a rated TDP of 280 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 9355P is manufactured by TSMC. It launched at a price of $2,998.

The AMD EPYC 9355P is also identified by the model number 9355P and the SKU 100-000001521.

Feex has recorded 63% of the specifications it tracks for the AMD EPYC 9355P. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture and All-Core Boost. Architecture & Generation: ISA Family and Market Status. Cache: 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: Processor Number and Part Number.

Processors that use the same SP5 socket as the AMD EPYC 9355P and have the closest multi-core scores in the Feex database include AMD EPYC 9375F, AMD EPYC 9754, AMD EPYC 9454P, AMD EPYC 9474F and AMD EPYC 9734.