AMD® EPYC™ 9845

The AMD EPYC 9845 is a server processor with 160 cores and 320 threads, built on the Zen 5 architecture (3 nm process). It launched in 2024. Clocks run from 2.1 GHz base to 3.7 GHz boost. A 320-MB L3 cache backs the cores (3.1 MB per core). It supports DDR5 memory. The chip drops into the SP5 socket and exposes PCIe 5.0. Rated TDP is 390 W. Notable platform capabilities: AVX-512, AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 9845 scores 3,144 in single-core performance and 152,985 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 21,931 for overall performance, 103,842 for productivity performance, 89,801 for creator performance, 214,179 for engineering performance and 47,678 for gaming performance. Its multi-core throughput works out to 956 per core, 478 per thread and 392 per watt. Its computed efficiency index is 1,111. Its performance index is 272, so its overall performance is 172% 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 9845 scores 1,687,531 in integer math, 978,377 in floating-point math, 4,680,013 in compression, 296,808 in cryptography, 19,631 in physics simulation, 314,798 in vector SIMD, 1,255 in the prime sieve and 538,060 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 2,765% above in integer math, 2,032% above in floating-point math, 1,952% above in compression, 2,483% above in cryptography, 1,701% above in physics simulation, 1,930% above in vector SIMD, 1,773% above in the prime sieve and 2,275% 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 9845 has 160 physical cores and runs 320 logical threads. It runs 2 threads per core. It runs at a base clock of 2.10 GHz and boosts up to 3.70 GHz.

The AMD EPYC 9845 is a server processor, belongs to the AMD EPYC family, uses the Zen 5 architecture, carries the codename Turin and is manufactured on a 3 nm process. It launched in 2024.

The AMD EPYC 9845 has 9.92 MB of L1 cache, 160 MB of L2 cache and 320 MB of L3 cache. That adds up to about 489.9 MB of cache, or 3.06 MB per core. Each core has 1 MB of private L2 cache.

The AMD EPYC 9845 has a 3-level cache hierarchy: L1 at 9.9 MB, L2 at 160 MB and L3 at 320 MB. L3 is the largest level and makes up about 65% of the cache listed here.

The AMD EPYC 9845 supports DDR5 memory, uses 12 memory channels, runs memory at up to 6,000 MT/s and delivers up to 576.0 GB/s of memory bandwidth. It does not support DDR4 and LPDDR memory.

The AMD EPYC 9845 does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 9845 uses the SP5 socket and supports PCI Express 5.0.

The AMD EPYC 9845 has a rated TDP of 390 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 9845 is manufactured by TSMC. It launched at a price of $13,564.

The AMD EPYC 9845 is also identified by the model number 9845 and the SKU 100-000001458.

Feex has recorded 60% of the specifications it tracks for the AMD EPYC 9845. 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: ISA Family and Market Status. Cache: L4 Cache. Memory Support: ECC Memory. 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 and Die Count. Naming & Aliases: Processor Number and Part Number.

Processors that use the same SP5 socket as the AMD EPYC 9845 and have the closest multi-core scores in the Feex database include AMD EPYC 9755, AMD EPYC 9655, AMD EPYC 9575F, AMD EPYC 9655P and AMD EPYC 9965.