HCI-CPU-A9254 - AMD EPYC 9254 24-Core 2.9GHz CPU | Cisco
Teilenummer: HCI-CPU-A9254 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4782.55 | $4.782,55 |
| 10 | $4590 | $45.900,00 |
| 100 | $4480 | $448.000,00 |
| 500 | $4395 | $2.197.500,00 |
| 1.000 | $4320 | $4.320.000,00 |
HCI-CPU-A9254 Übersicht
A server processor (CPU) is the central compute engine of a data center server, sitting at the top of the compute hierarchy: microprocessor -> multi-core server processor -> server platform -> data center infrastructure. The EPYC 9004 family, codenamed Genoa, uses AMD's Zen 4 core architecture on a 5 nm process with a chiplet design in which up to 12 core-complex dies connect to a single I/O die via AMD Infinity Fabric.
Key features of the EPYC 9254 include 24 Zen 4 cores with simultaneous multithreading for 48 threads, a large 128 MB shared L3 cache, PCIe Gen5 connectivity for high-bandwidth accelerators and NVMe storage, and DDR5-4800 memory support delivering dramatically higher bandwidth than the prior DDR4 generation. The 200 W default TDP offers a balanced performance-per-watt profile for dense virtualization workloads.
In the Cisco HCI variant, the processor is validated and supported for Cisco Hyperconverged Infrastructure nodes, where compute, storage, and networking are consolidated on one platform. Typical applications include virtualization clusters, private cloud, software-defined storage, database servers, and data analytics. According to AMD, the EPYC 9004 series targets modern data centers requiring exceptional time-to-results and energy efficiency.
Design and integration considerations: verify Socket SP5 motherboard support, BIOS/firmware qualification in the Cisco UCS Hardware Compatibility List, adequate VRM delivery for the 200 W TDP, and high-performance cooling. Memory channel population should follow the vendor configuration guide to achieve full DDR5-4800 bandwidth.
This page synthesizes distributor pricing, Cisco family cross-references (UCS-CPU-A9254, HCIX-CPU-A9254), and integration guidance not found in a single datasheet, providing engineers and buyers with one consolidated, verifiable reference.
Drop-in-Alternativen für HCI-CPU-A9254 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
UCS-CPU-A9254
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
HCIX-CPU-A9254
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
EPYC 9254
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
HCI-CPU-A9254 Spezifikationen (herstellerveröffentlicht)
| Processor Model | AMD EPYC 9254 |
| Cisco Part Number | HCI-CPU-A9254 |
| Core Count | 24 |
| Base Clock | 2.9 GHz |
| L3 Cache | 128 MB |
| TDP | 200 W |
| Memory Support | DDR5 4800 MT/s |
| Socket | Socket SP5 |
| Processor Series | AMD EPYC 9004 Series (Genoa, Zen 4) |
| TDP Class | 200 W class server processor |
| Application Platform | Cisco UCS / Cisco HCI servers |
| Distributor Reference Price | USD 4782.55 (as of 2026-10-19, posglobal.com) |
| RoHS-Status | unknown |
HCI-CPU-A9254 Schnittstellen & Anschlüsse
Für HCI-CPU-A9254 ist keine vom Hersteller veröffentlichte Schnittstellenliste verfügbar. Details zu Anschlüssen und Headern finden Sie in der Herstellerdokumentation.
Siehe die Herstellerdokumentation für die vollständige Pinbelegung der Erweiterungsleiste und die Nummerierung der Steckverbinder-Pins.
Typische Anwendungen
HCI-CPU-A9254 ist geeignet für 6 Anwendungs: Hyperconverged Infrastructure (HCI) Nodes, Server Virtualization Clusters, Software-Defined Storage, Database Servers, Private Cloud and Data Analytics, Enterprise Server Refresh / Upgrades.
Hyperconverged Infrastructure (HCI) Nodes
The HCI-CPU-A9254 is purpose-qualified for Cisco Hyperconverged Infrastructure nodes, where compute, software-defined storage, and virtual networking run on one server platform. The 24 Zen 4 cores at 2.9 GHz give per-VM clock headroom, while 128 MB of L3 cache reduces latency for storage I/O stacks that are cache-heavy. DDR5-4800 memory support is critical in HCI because the distributed storage layer consumes significant memory bandwidth for caching and erasure-coding operations. Deployed per node with the platform's qualified DIMM population, the 200 W TDP allows denser node counts per rack than 300-360 W class SKUs, improving performance-per-watt in scale-out HCI clusters. Validate BIOS and driver qualification in the Cisco UCS HCL before production rollout.
Empfohlen
Server Virtualization Clusters
For VMware, Hyper-V, or KVM virtualization farms, the EPYC 9254's 24 cores and 48 threads provide a high VM-density per socket, and the 2.9 GHz base clock sustains clock-sensitive guest workloads better than lower-clock, higher-core-count SKUs. The chiplet-based Zen 4 architecture connects up to 12 core-complex dies via AMD Infinity Fabric, and the 128 MB shared L3 cache benefits co-scheduled vCPU workloads. DDR5-4800 support raises memory bandwidth per core versus DDR4-generation hosts, reducing NUMA-related stalls during live migration and memory ballooning. At a 200 W TDP, rack power budgets stretch further, letting operators add nodes under fixed power caps. Follow the memory population guide to activate all channels at full 4800 MT/s speed for maximum consolidation ratios.
Empfohlen
Software-Defined Storage
Software-defined storage platforms (Ceph, vSAN, storage services in HCI stacks) are CPU- and memory-bandwidth-hungry due to replication, checksumming, compression, and erasure coding. The EPYC 9254's 24 cores at 2.9 GHz handle these background operations while leaving capacity for guest I/O, and its 128 MB L3 cache buffers metadata-intensive workloads. DDR5-4800 memory is a major advantage: the storage data path uses large write caches whose throughput scales directly with memory bandwidth. AMD positions the 9004 series for modern data centers needing energy efficiency, and at 200 W TDP this SKU delivers storage throughput per watt suited to dense storage clusters. Size NIC bandwidth (PCIe Gen5 attached) to avoid saturating the fabric during rebuild operations.
Empfohlen
Database Servers
Transactional databases such as PostgreSQL, MySQL, and SQL Server reward high per-core clocks and large cache capacity, both strengths of the EPYC 9254: 2.9 GHz base clock with Zen 4 IPC and 128 MB of shared L3 cache keep hot index pages and query plans close to the cores. DDR5-4800 support feeds the buffer pool at higher bandwidth than DDR4-3200 platforms, reducing latency on memory-bound scans. With 48 threads from 24 cores, the CPU handles high connection counts with fewer context switches. The 200 W TDP keeps thermal design straightforward in 1U/2U chassis, allowing higher database node density per rack. Estimated: DDR5-4800 across all channels provides roughly 50% more theoretical bandwidth per channel than DDR4-3200, directly benefiting OLTP buffer-pool hit rates.
Empfohlen
Private Cloud and Data Analytics
Private cloud controllers and analytics frameworks (Spark, Kafka, ELK) benefit from the EPYC 9254's balanced profile: enough cores (24) for parallel ingestion and query execution, and a 2.9 GHz clock that keeps latency-sensitive control planes responsive. The 128 MB L3 cache supports data shuffling stages common in analytics pipelines, and DDR5-4800 bandwidth accelerates in-memory processing frames where datasets approach RAM capacity. AMD's 9004-series chiplet design lets this SKU share platform validation, tooling, and BIOS images with higher-core SKUs, simplifying mixed-cluster operations. At 200 W, cluster operators gain predictable thermal behavior in dense compute pods, and PCIe Gen5 I/O bandwidth supports modern 200G-class networking and NVMe acceleration without bottlenecking the CPU.
Empfohlen
Enterprise Server Refresh / Upgrades
Organizations refreshing older DDR4-era servers (EPYC 7002/7003 or Xeon Scalable first/second generation) can use the HCI-CPU-A9254 to move to the Zen 4 / DDR5 / PCIe Gen5 platform in a single step. Per AMD's product positioning, the 9004 series targets modern data centers needing better time-to-results and energy efficiency: the jump to DDR5-4800 raises memory bandwidth, and PCIe Gen5 doubles I/O bandwidth per lane versus Gen3-era hosts. Because this Cisco part number is a qualified option for Cisco UCS/HCI chassis, refresh projects can retain existing management tooling and support contracts. Confirm chassis generation support and minimum BIOS version in the Cisco UCS Hardware Compatibility List before ordering, since SP5 CPUs are not backward-compatible with SP3 sockets.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für HCI-CPU-A9254 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | UCS-CPU-A9254 | HCIX-CPU-A9254 | EPYC 9254 (HPE option) |
|---|---|---|---|---|
| Brand | Cisco Systems (AMD silicon) | Cisco Systems | Cisco Systems | AMD / HPE |
| Package | Socket SP5 (LGA-6096 class) | Socket SP5 - same | Socket SP5 - same | Socket SP5 - same |
| Core Count | 24 | 24 | 24 | 24 |
| Base Clock | 2.9 GHz | 2.9 GHz | 2.9 GHz | 2.9 GHz |
| L3 Cache | 128 MB | 128 MB | 128 MB | 128 MB |
| TDP | 200 W | 200 W | 200 W | 200 W |
| Memory Support | DDR5 4800 MT/s | DDR5 4800 MT/s | DDR5 4800 MT/s | DDR5 4800 MT/s |
| Target Platform | Cisco HCI servers | Cisco UCS servers | Cisco HCIX servers | HPE ProLiant servers |
Wichtigste Unterscheidungsmerkmale
- HCI-program qualification (vs. UCS-CPU-A9254)
- Higher per-core clocks than Xeon Gold 6430 (vs. Intel Xeon Gold 6430)
- DDR5-4800 memory bandwidth (vs. Previous-generation EPYC (Milan, DDR4-3200))
Designhinweise
The EPYC 9254 has a 200 W TDP, so the host board must provide an SP5 VRM rated for 200 W-class processors with proper power-stage cooling. Estimated: at full load and a typical 90% VRM efficiency, input power draw is roughly 222 W per socket plus memory and fans; size PSU headroom and facility circuits accordingly. Use only Cisco-qualified power options in HCI chassis so telemetry and redundant-power policies remain supported.
Select a server-class passive heatsink validated for 200 W Socket SP5 processors and confirm chassis airflow meets the Cisco thermal specification for the target ambient temperature. Estimated: a heatsink solution with 0.15 C/W thermal resistance yields about a 30 C rise over inlet at 200 W, so a 35 C inlet implies roughly a 65 C package temperature before contribution from VRM and memory heating. Undersized cooling will trigger thermal throttling and reduce sustained clock rates.
Socket SP5 (Genoa) processors are not compatible with SP3 (Naples/Rome/Milan) sockets - a platform change is required when migrating from older EPYC generations. Before ordering, verify the exact chassis generation, minimum BIOS/firmware version, and heatsink option in the Cisco UCS Hardware Compatibility List (ucshcltool.cloudapps.cisco.com). Mixing HPE-channel EPYC 9254 parts into Cisco chassis is not supported and may void warranty and firmware entitlement.
Compliance-Informationen
Compliance status not stated in provided web data; consult Cisco/AMD product compliance documentation.