• HPE p63491-B21 EPYC 9184X server cpu with metallic silver top cover and black integrated circuitry beneath
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HPE

HPE P63491-B21 | EPYC 9184X 16-Core 3.55GHz 768MB 3D V-Cache Server CPU, 320W

HPE P63491-B21 | EPYC 9184X 16-Core 3.55GHz 768MB 3D V-Cache Server CPU, 320W

P63491-B21

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Description

The AMD EPYC 9184X 16-core server processor is a 4th Generation Zen 4 CPU engineered for HPE ProLiant servers demanding exceptional cache performance. With a massive 768 MB L3 3D V-Cache, 3.55 GHz base clock boosting to 4.20 GHz, and support for DDR5 memory at 4800 MT/s across 12 channels, it excels in cache-sensitive workloads including EDA, CAD, simulation, and high-performance computing environments requiring both high throughput and rapid data access.

Built on a 5nm process node with the SP5 socket, the EPYC 9184X supports up to 3 TB of DDR5 memory, PCIe Gen 5 I/O, and AMD Infinity Guard security features including hardware-based memory encryption. It delivers 32 threads across 16 cores within a 320W TDP envelope, making it a targeted upgrade for HPE ProLiant platforms where cache bandwidth is the primary bottleneck. Upgrade your network with gear from iptrading.com.au — Australia's IT hardware specialists.

Features

- AMD 3D V-Cache technology: 768 MB L3 cache for cache-sensitive workloads
- 4th Gen EPYC Zen 4 architecture built on leading-edge 5nm process node
- 3.55 GHz base frequency with up to 4.20 GHz boost for strong single-threaded performance
- DDR5 memory support at 4800 MT/s across 12 channels — up to 3 TB per socket
- PCIe Gen 5 I/O for high-bandwidth accelerator and storage connectivity
- AMD Infinity Guard: AMD Secure Processor and hardware memory encryption
- Optimised for EDA, CAD, simulation, HPC, and cache-intensive enterprise workloads
- HPE-validated for ProLiant SP5-socket server platforms
- 64-bit processing with 32 threads across 16 cores

Warranty

Hewlett Packard Enterprise (HPE) offers a standard limited hardware warranty on its products, with coverage periods varying by product line. For instance, HPE ProLiant servers typically come with a 1 to 3-year limited warranty, while other products may have different durations.
Extended Warranty Options via IP Trading:
IP Trading offers tailored extended warranty solutions and support packages for HPE products, ensuring your IT infrastructure remains protected beyond the standard warranty period. Contact our team to explore options that align with your organisation's needs.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Processor Model: AMD EPYC 9184X
- Generation: 4th Gen AMD EPYC (Zen 4 / 9004 Series)
- Base Clock Speed: 3.55 GHz
- Max Boost Clock Speed: 4.20 GHz
- Cores: 16
- Threads: 32
- L3 Cache: 768 MB (3D V-Cache)
- L2 Cache: 16 MB
- TDP: 320W
- Process Node: 5nm
- Socket: SP5
- Memory Support: DDR5 up to 4800 MT/s, 12 memory channels
- Max Memory Capacity: 3 TB
- I/O: PCIe Gen 5
- HPE Part Number: P63491-B21
- Dimensions: 7.6 x 29.74 x 1.25 cm
- Weight: 0.61 kg

FAQs

Q: What HPE servers is the EPYC 9184X (P63491-B21) compatible with?
A: The AMD EPYC 9184X is designed for HPE ProLiant servers using the SP5 socket. Refer to the HPE QuickSpecs documentation for your specific ProLiant platform (e.g., DL385 Gen11) to confirm compatibility before ordering.

Q: Why does the EPYC 9184X have only 16 cores but a 768 MB L3 cache?
A: AMD's 3D V-Cache technology stacks additional SRAM cache die directly on top of the processor die. The 9184X prioritises massive cache capacity over core count, making it ideal for workloads that are latency-sensitive or benefit from keeping large datasets close to the CPU — such as EDA, CAD, simulation, and financial analytics.

Q: What memory type and speed does the EPYC 9184X support?
A: The processor supports DDR5 memory at up to 4800 MT/s across 12 memory channels, with a maximum installed memory capacity of 3 TB per socket.

Q: Does this processor require any additional licensing?
A: No additional CPU licensing is required. Software licensing for operating systems or workloads running on the server is managed separately and is not part of this processor SKU.

Q: Can I purchase the HPE EPYC 9184X (P63491-B21) in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware specialist stocking HPE server components including processor upgrades. Contact the team for pricing, lead times, and volume enquiries.

Q: How does the EPYC 9184X compare to standard EPYC 9004 processors without 3D V-Cache?
A: Compared to non-3D V-Cache EPYC 9004 processors, the 9184X offers significantly more L3 cache (768 MB vs. typically 32–256 MB) at a lower core count. This trade-off favours workloads that saturate cache capacity rather than those requiring maximum parallelism — making it a specialised choice rather than a general-purpose upgrade.

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