AMD® EPYC™ 7281

The AMD EPYC 7281 is a server processor with 16 cores and 32 threads, built on the Zen architecture (14 nm process). It launched in Jun 2017. Clocks run from 2.1 GHz base to 2.7 GHz boost. A 32-MB L3 cache backs the cores (2.6 MB per core). It supports DDR4 memory. The chip drops into the SP3 socket and exposes PCIe 3.0 (128 lanes). Rated TDP is 155 W. Notable platform capabilities: AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 7281 scores 1,621 in single-core performance and 21,653 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 5,924 for overall performance, 16,344 for productivity performance, 14,827 for creator performance, 24,901 for engineering performance and 10,276 for gaming performance. Its multi-core throughput works out to 1,353 per core, 677 per thread and 140 per watt. Its computed efficiency index is 476. Its performance index is 73, so its overall performance is 27% below 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 7281 scores 87,479 in integer math, 45,499 in floating-point math, 368,432 in compression, 23,955 in cryptography, 958 in physics simulation, 14,133 in vector SIMD, 55 in the prime sieve and 41,338 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 49% above in integer math, 1% below in floating-point math, 62% above in compression, 109% above in cryptography, 12% below in physics simulation, 9% below in vector SIMD, 18% below in the prime sieve and 82% 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 7281 has 16 physical cores and runs 32 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 2.10 GHz and boosts up to 2.70 GHz.

The AMD EPYC 7281 is a server processor, belongs to the AMD EPYC family, uses the Zen architecture and is manufactured on a 14 nm process. It launched in Jun 2017.

The AMD EPYC 7281 has 1.50 MB of L1 cache, 8 MB of L2 cache and 32 MB of L3 cache. That adds up to about 41.5 MB of cache, or 2.59 MB per core. Each core has 512 KB of private L2 cache.

The AMD EPYC 7281 has a 3-level cache hierarchy: L1 at 1.5 MB, L2 at 8 MB and L3 at 32 MB. L3 is the largest level and makes up about 77% of the cache listed here.

The AMD EPYC 7281 supports DDR4 memory, uses 8 memory channels, runs memory at up to 2,666 MT/s and delivers up to 170.6 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

The AMD EPYC 7281 uses the SP3 socket, supports PCI Express 3.0 and provides up to 128 PCIe lanes.

The AMD EPYC 7281 has a rated TDP of 155 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 7281 is manufactured by GlobalFoundries. It launched at a price of $650.

Feex has recorded 58% of the specifications it tracks for the AMD EPYC 7281. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: ECC Memory. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video 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: SKU, Model Number, Processor Number and Part Number.

Processors that use the same SP3 socket as the AMD EPYC 7281 and have the closest multi-core scores in the Feex database include AMD EPYC 7262, AMD EPYC 7F32, AMD EPYC 7252, AMD EPYC 7501 and AMD EPYC 7232P.