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AMD has officially launched a new series of CPUs to bring the Zen 5 architecture to entry-level servers and commercial systems. These are the Zen 5-based EPYC 4005-series processors, leveraging the familiar AM5 socket form factor to bring the latest AMD CPU architecture to small businesses, edge deployments, and hosting providers.
The EPYC 4005 series offers up to 16 cores and 32 threads, a core count specifically chosen to align with the baseline Windows Server 2025 licensing limits. These CPUs are built similarly to AMD's Ryzen 9000 processors, featuring Zen 5 CCDs with the same 8MB of L2 cache (1MB per core), 32MB of unified L3 cache, and an I/O die. The flagship EPYC 4585PX variant includes 64MB of 3D V-Cache for enhanced performance in specific workloads. All models include a dual-channel DDR5 memory controller supporting up to 192GB of DDR5-5600 memory with ECC. Thermal design power ranges from 65W up to 170W.
The new EPYC ‘Grado' platform features some security features worth mentioning: a dedicated security processor, secure boot, TPM 2.0, and memory encryption capabilities. Connectivity is robust, featuring 28 PCIe 5.0 lanes, modern display outputs like DisplayPort 2.0 and HDMI 2.1, and flexible USB options including up to 20G Type-C and optional USB4. Below, you can find a table with all the EPYC 4005 CPUs listed:
| Name | # of CPU Cores | # of Threads | Max. Boost Clock | Base Clock | L3 Cache | Default TDP |
|---|---|---|---|---|---|---|
| AMD EPYC 4585PX | 16 | 32 | Up to 5.7 GHz | 4.3 GHz | 128 MB | 170W |
| AMD EPYC 4565P | 16 | 32 | Up to 5.7 GHz | 4.3 GHz | 64 MB | 170W |
| AMD EPYC 4545P | 16 | 32 | Up to 5.4 GHz | 3 GHz | 64 MB | 65W |
| AMD EPYC 4465P | 12 | 24 | Up to 5.4 GHz | 3.4 GHz | 64 MB | 65W |
| AMD EPYC 4345P | 8 | 16 | Up to 5.5 GHz | 3.8 GHz | 32 MB | 65W |
| AMD EPYC 4245P | 6 | 12 | Up to 5.4 GHz | 3.9 GHz | 32 MB | 65W |
AMD compares the EPYC 4005 series against Intel's Xeon E-2400 and Xeon 6300P CPUs, highlighting their core count advantage (up to 16 cores vs. Intel's up to 8). According to AMD's benchmarks, this leads to noticeably better performance, citing the 16-core EPYC 4565P as being 1.83x faster than Intel's eight-core Xeon 6369P in specific tests. Despite the performance difference, the EPYC 4565P is also positioned as being slightly less expensive compared to the Intel CPU, alongside other advantages like DDR5-5600 support and a larger L3 cache.
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KitGuru says: It would be interesting to see how the new EPYC 4005 processors compare to the Ryzen 9000 series in everyday tasks..
