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The DL5x0 Gen10 CPU mezzanine board integrated seamlessly.
P07991-B21
HPE DL5x0 Gen10 CPU Version 2 Mezzanine Board Kit
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Name:
P07991-B21
- Description:
- HPE DL5x0 Gen10 CPU Version 2 Mezzanine Board Kit
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P07991-B21 Overview
P07991-B21 is an Intel Core processor from the Intel 13th Gen Raptor Lake family designed for high-performance desktop applications. It features a LGA 1700 socket with 8 cores and 16 threads, delivering a base clock speed of 3.6 GHz and a boost clock speed of 5.0 GHz. With 4 MB of L2 cache and 16 MB of L3 cache, this processor is engineered for responsive computing under demanding workloads while maintaining a 125W thermal design power (TDP). Integrated with Intel UHD Graphics 770, the chip offers a graphics base frequency of 350 MHz and a max dynamic frequency of 1150 MHz, making it well-suited for both visual computing and gaming tasks.
Optimized for both gaming and workstation use, P07991-B21 supports dual-channel DDR4 & DDR5 memory configurations and is compatible with PCIe 5.0, ensuring high-speed data transfers and system responsiveness. It is unlocked for overclocking, allowing enthusiasts and professionals alike to push performance beyond the baseline. The processor also comes with robust security features such as SGX and supports virtualization via Intel VT-x, aligning it with modern platform requirements and enhancing its capability in versatile computing environments.
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P07991-B21 Specifications
- Product Type
- Processors
- Brand
- Intel
- Series
- Intel Core
- Category
- Desktop
- Max Memory Support
- 128 GB
- Memory Type Support
- DDR4 & DDR5
- Generation
- Intel 13th Gen
- Architecture
- Raptor Lake
- ECC Support
- No
- Security Features
- SGX
- CPU Socket
- LGA 1700
- Instruction Set Extensions
- AVX2
- Virtualization Support
- Intel VT-x
- Cores
- 8
- Threads
- 16
- Base Clock
- 3.6
- Max Boost Clock
- 5.0
- Overclocking Support
- Yes
- L2 Cache
- 4
- L3 Cache
- 16
- TDP
- 125W
- Integrated Graphics
- Intel UHD Graphics 770
- Graphics Base Frequency
- 350
- Graphics Max Dynamic Frequency
- 1150
- Memory Channels
- Dual
- PCIe Version
- PCIe 5.0
- Unlocked
- Yes
- Cooler Included
- No
- Use Case
- Gaming
- Product Name
- P07991-B21
- Height
- 0.5
- Width
- 0.5
- Depth
- 0.2
- Weight
- 0.25
P07991-B21 Use Case
High-Density Virtualization Consolidation with P07991-B21
In large enterprise data centers running HPE DL560 Gen10 servers, IT architects deploy the P07991-B21-HPE DL5x0 Gen10 CPU Version 2 Mezzanine Board Kit to unlock additional PCIe lanes and advanced memory caching. This enables hosting 50% more virtual machines per chassis, reducing rack-space and licensing costs by 30%. The outcome is streamlined management, higher VM density, and accelerated time-to-provision for critical business applications.
Big Data Analytics Acceleration via Expanded I/O
Data science teams operating Hadoop/Spark clusters on HPE DL580 Gen10 leverage the P07991-B21 CPU Version 2 Mezzanine Board Kit to attach NVMe SSD arrays directly to CPU lanes. By doubling I/O throughput and cutting ETL job times in half, organizations gain real-time insights and faster report generation. The result is a scalable analytics platform that drives strategic decision-making with high-speed, low-latency data access.
Ultra-Low-Latency Trading Infrastructure Deployment
Financial services firms building HPE DL560 Gen10 platforms integrate the P07991-B21-HPE DL5x0 Gen10 CPU Version 2 Mezzanine Board Kit to support specialized network adapters and FPGA accelerators. This configuration delivers sub-microsecond packet processing, meeting stringent SLAs for algorithmic trading. The tangible benefit is minimized market risk and maximized throughput, ensuring competitive advantage in high-frequency trading environments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 P07991-B21 |  P05707-B21 |  P05699-L21 |  878156-L21 |  P05698-B21 | |
|---|---|---|---|---|---|
| Architecture | Raptor Lake | Raptor Lake | Alder Lake | Alder Lake | Alder Lake |
| Base Clock | 3.6 | 3.4 | 3.6 GHz | 3.8 GHz | 3.6 GHz |
| Brand | Intel | Intel | Intel | Intel | Intel |
| CPU Socket | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 |
| Category | Desktop | Desktop | Desktop | Desktop | Desktop |
| Cooler Included | No | No | No | No | No |
| Cores | 8 | 16 | 8 | 8 | 12 |
| Depth | 0.2 | 1.57 inches | N/A | 1.0 inches | 0.2 inches |
| ECC Support | No | No | No | No | No |
| Generation | Intel 13th Gen | Intel 13th Gen | Intel 12th Gen | Intel 12th Gen | Intel 12th Gen |
| Graphics Base Frequency | 350 | 350 | 300 MHz | 350 MHz | 350 MHz |
| Graphics Max Dynamic Frequency | 1150 | 1100 | 1100 MHz | 1150 MHz | 1100 MHz |
| Height | 0.5 | 0.16 inches | N/A | 1.5 inches | 1.5 inches |
| Instruction Set Extensions | AVX2 | AVX2 | AVX2 | AVX2 | AVX-512 |
| Integrated Graphics | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 |
| L2 Cache | 4 | 16 | 4 MB | 8 MB | 12 MB |
| L3 Cache | 16 | 30 | 16 MB | 16 MB | 20 MB |
| Max Boost Clock | 5.0 | 5.4 | 4.8 GHz | 4.8 GHz | 5.0 GHz |
| Max Memory Support | 128 GB | 128 GB | 128 GB | 128 GB | 128 GB |
| Memory Channels | Dual | Dual | Dual | Dual | Dual |
| Memory Type Support | DDR4 & DDR5 | DDR4 & DDR5 | DDR4 & DDR5 | DDR4 & DDR5 | DDR4 & DDR5 |
| Overclocking Support | Yes | Yes | No | Yes | Yes |
| PCIe Version | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 |
| Product Name | P07991-B21 | Intel Core i7-13700K | Intel Core P05699-L21 Alder Lake | Intel Core i7-12700K (878156-L21) | Intel Core i7-12700K |
| Product Type | Processors | Processors | Processors | Processors | Processors |
| Security Features | SGX | None | None | SGX | None |
| Series | Intel Core | Intel Core | Intel Core | Intel Core | Intel Core |
| TDP | 125W | 125W | 125W | 125W | 125W |
| Threads | 16 | 24 | 16 | 16 | 20 |
| Unlocked | Yes | Yes | No | Yes | Yes |
| Use Case | Gaming | Gaming | Gaming / Workstation | Gaming | Gaming |
| Virtualization Support | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x |
| Weight | 0.25 | 0.3 lbs | N/A | 0.7 lbs | 0.5 lbs |
| Width | 0.5 | 1.57 inches | N/A | 1.5 inches | 1.5 inches |
Reviews & Ratings
S
Shahzaib Khan
4
Build quality and compatibility met expectations.
A
Adrian Wolfe
5
No issues during installation.
A
Aiman Raza
3
Reliable component for server upgrades.
G
Geoffrey Lane
4
Solid mezzanine board kit.
Questions & Answers
What is the HPE DL5x0 Gen10 CPU Version 2 Mezzanine Board Kit (SKU P07991-B21)?
The P07991-B21 kit is a mezzanine expansion assembly for HPE ProLiant DL360 Gen10 and DL380 Gen10 servers with CPU Version 2 architecture, enabling installation of PCIe Gen3 mezzanine cards.
Which HPE servers are compatible with SKU P07991-B21?
This kit is compatible with HPE ProLiant DL360 Gen10 and DL380 Gen10 servers equipped with CPU Version 2 sockets.
What components are included in the P07991-B21 kit?
The kit contains a CPU Version 2 mezzanine board, mounting bracket, cable assembly and all required fastening hardware.
How many additional PCIe slots does the mezzanine board provide?
It provides two PCIe Gen3 x8 mezzanine card slots for high-performance expansion.