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High core processor improved parallel workloads.
870256-B21
HPE XL230k Gen10 Xeon-P 8164 Rear Kit
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870256-B21
- Description:
- HPE XL230k Gen10 Xeon-P 8164 Rear Kit
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870256-B21 Overview
870256-B21 is an AMD Ryzen 7 processor built on the advanced Zen 3 architecture from the Ryzen 5000 Series. It features 8 cores and 16 threads with a base clock of 3.8 GHz and a boost clock of up to 4.5 GHz, supported by 4 MB of L2 cache and 32 MB of L3 cache to deliver excellent performance in rigorous multitasking and demanding applications.
Designed for the AM4 socket platform, 870256-B21 comes with a thermal design power of 95W and supports dual-channel DDR4 memory alongside PCIe 4.0 connectivity. With unlocked overclocking support, it is well-suited for high-performance gaming and workstation tasks, although it does not include integrated graphics.
870256-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 870256-B21 for additional pricing. Browse the full Hpe Apollo Servers Processors series or explore all Hpe products.
870256-B21 Specifications
- Product Type
- Processors
- Brand
- AMD
- Series
- AMD Ryzen
- Category
- Desktop
- Max Memory Support
- 128 GB
- Memory Type Support
- DDR4
- Generation
- Ryzen 5000 Series
- Architecture
- Zen 3
- ECC Support
- No
- Security Features
- None
- CPU Socket
- AM4
- Instruction Set Extensions
- AVX2
- Virtualization Support
- AMD-V
- Cores
- 8
- Threads
- 16
- Base Clock
- 3.8
- Max Boost Clock
- 4.5
- Overclocking Support
- Yes
- L2 Cache
- 4
- L3 Cache
- 32
- TDP
- 95W
- Integrated Graphics
- None
- Graphics Base Frequency
- N/A
- Graphics Max Dynamic Frequency
- N/A
- Memory Channels
- Dual
- PCIe Version
- PCIe 4.0
- Unlocked
- Yes
- Cooler Included
- No
- Use Case
- Gaming
- Product Name
- AMD Ryzen 7 5800X
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
870256-B21 Use Case
Accelerating Large-Scale Scientific Simulations in HPC Clusters
In a national research center running physics and climate models, engineers integrate the 870256-B21 HPE XL230k Gen10 Xeon-P 8164 Rear Kit into their high-performance computing nodes. The Rear Kit optimizes thermal dissipation and I/O backplane connectivity, enabling sustained multi-core CPU utilization. Outcome: 25% higher simulation throughput, reduced compute bottlenecks, and predictable batch-job completion times.
Enabling Ultra-Low Latency Trading in Financial Services
A global hedge fund deploys the 870256-B21 HPE XL230k Gen10 Xeon-P 8164 Rear Kit in its co-located trading servers to streamline network fabric and PCIe expansion. The Rear Kit’s robust backplane design minimizes signal loss and maximizes data-feed bandwidth. Outcome: 15% reduction in end-to-end trade execution latency, enhanced system reliability, and 24/7 market-making performance.
Scaling Edge Compute for 5G Telco and IoT Applications
A telecommunications operator leverages the 870256-B21 HPE XL230k Gen10 Xeon-P 8164 Rear Kit within rugged edge nodes at remote cell sites. The Rear Kit simplifies installation of NVMe storage and dual-port network modules, ensuring consistent throughput under harsh conditions. Outcome: 30% improvement in remote-site uptime, streamlined field maintenance, and guaranteed low-latency regional services.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 870256-B21 |  821791-B21 |  803307-B21 |  872552-B21 |  830742-L21 | |
|---|---|---|---|---|---|
| Product Type | Processors | Processors | Processors | Processors | Processors |
| Brand | AMD | Intel | Intel | Intel | Intel |
| Series | AMD Ryzen | Intel Core | Intel Core | Intel Core | Intel Core |
| Category | Desktop | Desktop | Desktop | Desktop | Desktop |
| Max Memory Support | 128 GB | 128 GB | 128 GB | 128 GB | 128 GB |
| Memory Type Support | DDR4 | DDR4 & DDR5 | DDR5 | DDR4 & DDR5 | DDR5 |
| Generation | Ryzen 5000 Series | Intel 12th Gen | Intel 13th Gen | Intel 12th Gen | Intel 13th Gen |
| Architecture | Zen 3 | Alder Lake | Raptor Lake | Alder Lake | Raptor Lake |
| ECC Support | No | No | No | No | No |
| Security Features | None | None | SGX | None | None |
| CPU Socket | AM4 | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 |
| Instruction Set Extensions | AVX2 | AVX2 | AVX2 | AVX2 | AVX2 |
| Virtualization Support | AMD-V | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x / Intel VT-d |
| Cores | 8 | 12 | 8 | 6 | 8 |
| Threads | 16 | 20 | 16 | 12 | 16 |
| Base Clock | 3.8 | 3.6 | 3.8 GHz | 2.5 | 3.8 GHz |
| Max Boost Clock | 4.5 | 5.0 | 5.0 GHz | 4.4 | 5.0 GHz |
| Overclocking Support | Yes | Yes | Yes | No | Yes |
| L2 Cache | 4 | 12 | 4 MB | 12 | 8 MB |
| L3 Cache | 32 | 20 | 16 MB | 18 | 16 MB |
| TDP | 95W | 125W | 125W | 65W | 125W |
| Integrated Graphics | None | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 730 | Intel UHD Graphics 770 |
| Graphics Base Frequency | N/A | 300 | 350 MHz | 300 | 350 MHz |
| Graphics Max Dynamic Frequency | N/A | 1100 | 1100 MHz | 1150 | 1100 MHz |
| Memory Channels | Dual | Dual | Dual | Dual | Dual |
| PCIe Version | PCIe 4.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 |
| Unlocked | Yes | Yes | Yes | No | Yes |
| Cooler Included | No | No | Yes | Yes | No |
| Use Case | Gaming | Gaming | Gaming / Workstation | Gaming | Gaming |
| Product Name | AMD Ryzen 7 5800X | Intel Core i7-12700K Processor (Part Number 821791-B21) | 803307-B21 | Intel Core i5-12400 Processor | Intel Core i7-13700K |
| Height | N/A | 0.5 | N/A | 0.16 | 1.5 inches |
| Width | N/A | 1.5 | N/A | 1.48 | 1.5 inches |
| Depth | N/A | 1.5 | N/A | 1.48 | 1.0 inches |
| Weight | N/A | 0.3 | N/A | 0.04 | 0.8 lbs |
Reviews & Ratings
M
Mehwish Khan
4
Stable under heavy compute loads.
A
Andrea Rossi
5
Predictable performance and power usage.
S
Shahbaz Ahmed
3
Good upgrade for XL230k systems.
M
Martin Cole
4
Consistent Gen10 performance.
Questions & Answers
What is the HPE XL230k Gen10 Xeon-P 8164 Rear Kit (SKU: 870256-B21)?
The HPE XL230k Gen10 Xeon-P 8164 Rear Kit (870256-B21) is a factory-configured accessory that provides I/O ports, power connectors and optimized airflow for HPE XL230k Gen10 servers.
Which HPE servers are compatible with the 870256-B21 rear kit?
The 870256-B21 rear kit is compatible exclusively with HPE XL230k Gen10 servers configured with the Intel Xeon-P 8164 processor.
What components are included in the rear kit package?
The kit includes the rear I/O cage, power distribution board, fan module brackets, cabling harnesses and all mounting hardware.
Can I install the HPE XL230k Gen10 rear kit myself?
Yes. HPE provides a step-by-step installation guide. No specialized tools are required beyond standard server rack tools.