United States$5,000,000+
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A
Aaron Finch
5
High core count processor handles virtualization well.
878656-B21
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HPE ML350 Gen10 8158 Xeon-P Kit
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878656-B21
- Description:
- HPE ML350 Gen10 8158 Xeon-P Kit
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878656-B21 Overview
878656-B21 is an Intel Core i7-13700K Processor from Intel’s 13th Gen lineup, built on the Raptor Lake architecture and designed for the LGA 1700 socket. It features 16 cores and 24 threads with a base clock of 3.4 GHz and a max boost clock of 5.4 GHz, complemented by 16 MB of L2 cache and 30 MB of L3 cache, a TDP of 125W, and integrated Intel UHD Graphics 770.
This processor supports both DDR4 and DDR5 memory in a dual channel configuration and offers PCIe 5.0 connectivity along with unlocked overclocking support, making it compatible with the latest desktop chipsets. Its high-performance attributes are ideally suited for demanding gaming, workstation, and server use cases, ensuring robust multitasking and an exceptional computing experience.
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Request bulk order quote for 878656-B21 for additional pricing. Browse the full Hpe Ml350 Server Processors series or explore all Hpe products.
878656-B21 Specifications
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- ECC Support
- No
- Use Case
- Gaming
- CPU Socket
- LGA 1700
- Memory Channels
- Dual
- PCIe Version
- PCIe 5.0
- Product Type
- Processors
- Brand
- Intel
- Cores
- 16
- TDP
- 125W
- Cooler Included
- No
- Series
- Intel Core
- Category
- Desktop
- Max Memory Support
- 128 GB
- Generation
- Intel 13th Gen
- Architecture
- Raptor Lake
- Security Features
- None
- Instruction Set Extensions
- AVX2
- Overclocking Support
- Yes
- Integrated Graphics
- Intel UHD Graphics 770
- Graphics Max Dynamic Frequency
- 1100 MHz
- Unlocked
- Yes
- Memory Type Support
- DDR4 & DDR5
- Threads
- 24
- L2 Cache
- 16 MB
- Graphics Base Frequency
- 350 MHz
- Base Clock
- 3.4 GHz
- Max Boost Clock
- 5.4 GHz
- L3 Cache
- 30 MB
- Virtualization Support
- Intel VT-x / Intel VT-d
- Product Name
- Intel Core i7-13700K Processor (878656-B21)
878656-B21 Use Case
High-Density Virtualization Consolidation with HPE ML350 Gen10 8158 Xeon-P Kit
In a mid-sized enterprise data center, IT architects deploy the 878656-B21 HPE ML350 Gen10 8158 Xeon-P Kit to host 50+ virtual machines running ERP and CRM workloads on a single chassis. Benefit: Delivers 30% greater VM density per watt, reduces rack footprint by 40%, and lowers OPEX while maintaining consistent performance under peak demand.
Real-Time Analytics Acceleration for In-Memory Databases
A financial services firm integrates the 878656-B21 HPE ML350 Gen10 8158 Xeon-P Kit to power its in-memory database engine for live transaction monitoring. Benefit: Achieves sub-millisecond query response, boosts throughput by 25%, and ensures 99.99% SLA compliance for high-frequency trading applications.
Edge AI Inference in Industrial IoT Environments
A manufacturing plant installs the 878656-B21 HPE ML350 Gen10 8158 Xeon-P Kit at edge nodes to conduct on-site ML inference on sensor data streams. Benefit: Cuts inference latency to under 10 ms, improves predictive maintenance accuracy by 18%, and minimizes data backhaul to central servers for uninterrupted operations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 878656-B21 |  878651-B21 |  878649-B21 |  878652-L21 |  866558-L21 | |
|---|---|---|---|---|---|
| Product Type | Processors | Processors | Processors | Processors | Processors |
| Brand | Intel | Intel | Intel | Intel | Intel |
| Series | Intel Core | 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 & DDR5 | DDR5 | DDR5 | DDR4 & DDR5 | DDR4 & DDR5 |
| Generation | Intel 13th Gen | Intel 13th Gen | Intel 13th Gen | Intel 13th Gen | Intel 13th Gen |
| Architecture | Raptor Lake | Raptor Lake | Raptor Lake | Raptor Lake | Raptor Lake |
| ECC Support | No | No | No | No | No |
| Security Features | None | None | None | None | None |
| CPU Socket | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 |
| Instruction Set Extensions | AVX2 | AVX2 | AVX2 | AVX2 | AVX2 |
| Virtualization Support | Intel VT-x / Intel VT-d | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x |
| Cores | 16 | 16 | 8 | 8 | 16 |
| Threads | 24 | 24 | 16 | 16 | 24 |
| Base Clock | 3.4 GHz | 3.6 | 3.6 | 3.2 GHz | 3.8 GHz |
| Max Boost Clock | 5.4 GHz | 5.0 | 5.0 | 4.9 GHz | 5.0 GHz |
| Overclocking Support | Yes | Yes | Yes | Yes | Yes |
| L2 Cache | 16 MB | 8 | 4 | 4 MB | 1.5 MB |
| L3 Cache | 30 MB | 24 | 16 | 16 MB | 30 MB |
| TDP | 125W | 125W | 125W | 125W | 125W |
| Integrated Graphics | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 |
| Graphics Base Frequency | 350 MHz | 350 | 300 | 350 MHz | 350 MHz |
| Graphics Max Dynamic Frequency | 1100 MHz | 1100 | 1100 | 1150 MHz | 1200 MHz |
| Memory Channels | Dual | Dual | Dual | Dual | Dual |
| PCIe Version | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 |
| Unlocked | Yes | Yes | Yes | Yes | Yes |
| Cooler Included | No | No | No | No | No |
| Use Case | Gaming | Gaming / Workstation | Gaming | Gaming / Workstation | Gaming |
| Product Name | Intel Core i7-13700K Processor (878656-B21) | Intel Core i7-13700K | 878649-B21 | 878652-L21 | Intel Core i7 Processor 866558-L21 |
| Height | N/A | N/A | 0.5 inches | 0.5 inches | 1.4 inches |
| Width | N/A | N/A | 1.5 inches | 1.5 inches | 1.4 inches |
| Depth | N/A | N/A | 1.5 inches | 1.5 inches | 0.6 inches |
| Weight | N/A | N/A | 0.35 lbs | 0.3 lbs | 0.8 lbs |
Reviews & Ratings
Y
Yasir Mahmood
5
Thermals remain well managed.
K
Klaus Meier
5
No compatibility issues encountered.
S
Stephen Ward
5
Strong choice for Gen10 servers.
I
Imran Akmal
5
Reliable enterprise performance.
Questions & Answers
What is the HPE ML350 Gen10 8158 Xeon-P Kit (SKU: 878656-B21)?
The HPE ML350 Gen10 8158 Xeon-P Kit is a server upgrade package that includes two Intel Xeon Silver 4210R 10-core processors optimized for modular tower performance and reliability.
Which processors are included in the 878656-B21 kit?
The kit ships with two Intel Xeon Silver 4210R processors, each offering 10 cores, 20 threads and a base frequency of 2.4 GHz, boosting up to 3.2 GHz under load.
How does the 8158 Xeon-P Kit improve HPE ML350 Gen10 performance?
By upgrading to the dual-socket Xeon Silver 4210R CPUs, you gain up to 25% higher multi-thread throughput, enhanced virtualization support and more consistent response times for demanding workloads.
What memory capacity and speed does this kit support?
The upgrade supports up to 3 TB of HPE SmartMemory across 24 DDR4 DIMM slots at speeds up to 2933 MT/s, ensuring low latency and maximum bandwidth.
Is the kit compatible with existing HPE ML350 Gen10 configurations?
Yes. The 878656-B21 kit is fully compatible with all HPE ML350 Gen10 chassis and backplanes that support Intel Xeon Scalable processors.
What are the key I/O expansion options after installation?
After installation, you retain up to eight PCIe Gen3 slots for networking, storage controllers or GPU accelerators, enabling flexible I/O expansion.
How do I install the 8158 Xeon-P Kit in my server?
Installation requires shutting down the server, seating each new CPU into its socket, applying thermal paste, reinstalling heatsinks and updating the iLO firmware to the latest version.
What thermal and power considerations should I plan for?
Each Xeon Silver 4210R has a 105 W TDP. Ensure your server power supply is 800 W or higher and that cooling fans are rated for 12 V operation at optimal RPM.
Does the kit support HPE iLO management features?
Yes. Once installed, you can leverage HPE iLO for remote management, automated firmware updates, health monitoring and enhanced security features.
What security features come with the Xeon-P Kit upgrade?
The Intel Xeon Silver 4210R processors include Intel Secure Key, Trusted Execution Technology (TXT) and runtime firmware validation when paired with HPE Silicon Root of Trust.
What typical workloads benefit most from this upgrade?
You’ll see the greatest gains in virtualization, database processing, file & print services and small-to-medium business applications that demand multi-threaded performance.
Can I mix these new CPUs with older processors in the same chassis?
No. For optimal performance and system stability, both sockets must be populated with the identical Intel Xeon Silver 4210R CPUs provided in the kit.
What warranty covers the 878656-B21 Xeon-P Kit?
HPE provides a standard 3-year parts, labor and onsite support warranty. You can extend coverage with optional Foundation Care or Proactive Care services.
How does this upgrade impact data center power efficiency?
By using modern Xeon Scalable processors with dynamic power capping, you can lower overall wattage per compute cycle and improve PUE in your rack environment.
Are firmware updates required after installing the kit?
Yes. After installation, update the system ROM, iLO and Smart Array firmware to the versions specified in the HPE support matrix for full compatibility.
Where can I purchase the HPE ML350 Gen10 8158 Xeon-P Kit (878656-B21)?
You can order directly from HPE’s online storefront, authorized HPE channel partners or certified resellers worldwide.