AMD® EPYC™ 9745

The AMD EPYC 9745 is a server processor with 128 cores and 256 threads, built on the Zen 5 architecture (3 nm process). It launched in Oct 2024. Clocks run from 2.4 GHz base to 3.7 GHz boost. A 256-MB L3 cache backs the cores (3.0 MB per core). It supports DDR5 memory. The chip drops into the SP5 socket and exposes PCIe 5.0. Rated TDP is 400 W. Notable platform capabilities: AVX-512, AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 9745 scores 2,806 in single-core performance and 130,698 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 19,150 for overall performance, 88,882 for productivity performance, 76,935 for creator performance, 182,977 for engineering performance and 41,093 for gaming performance. Its multi-core throughput works out to 1,021 per core, 511 per thread and 327 per watt. Its computed efficiency index is 958. Its performance index is 237, so its overall performance is 137% 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 9745 scores 1,224,315 in integer math, 761,219 in floating-point math, 3,929,890 in compression, 229,447 in cryptography, 17,122 in physics simulation, 280,477 in vector SIMD, 979 in the prime sieve and 468,975 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 1,979% above in integer math, 1,558% above in floating-point math, 1,623% above in compression, 1,897% above in cryptography, 1,471% above in physics simulation, 1,708% above in vector SIMD, 1,361% above in the prime sieve and 1,970% 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 9745 has 128 physical cores and runs 256 logical threads. It runs 2 threads per core. It runs at a base clock of 2.40 GHz and boosts up to 3.70 GHz.

The AMD EPYC 9745 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 Oct 2024.

The AMD EPYC 9745 has 128 MB of L2 cache and 256 MB of L3 cache. That adds up to about 384.0 MB of cache, or 3.00 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 9745 has a 2-level cache hierarchy: L2 at 128 MB and L3 at 256 MB. L3 is the largest level and makes up about 67% of the cache listed here.

The AMD EPYC 9745 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 9745 does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 9745 uses the SP5 socket and supports PCI Express 5.0.

The AMD EPYC 9745 has a rated TDP of 400 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 9745 is manufactured by TSMC. It launched at a price of $12,141.

The AMD EPYC 9745 is also identified by the model number 9745.

Feex has recorded 58% of the specifications it tracks for the AMD EPYC 9745. 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: L1 Cache (Total) and 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: SKU, Processor Number and Part Number.

Processors that use the same SP5 socket as the AMD EPYC 9745 and have the closest multi-core scores in the Feex database include AMD EPYC 9555 Emb, AMD EPYC 9565, AMD EPYC 9555P, AMD EPYC 9J14 and AMD EPYC 9475F.