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The Xeon E7-8891v3 delivers reliable performance for legacy enterprise servers.
788333-B21
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HP XEON E7-8891V3 10 CORE 45MB CACHE 2.80GHZ CPU
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788333-B21
- Description:
- HP XEON E7-8891V3 10 CORE 45MB CACHE 2.80GHZ CPU
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788333-B21 Overview
788333-B21 is an Intel Core 13th Gen processor based on the Raptor Lake architecture and designed for the LGA 1700 socket. It features 8 cores and 16 threads, operates at a base clock of 3.6 GHz and can boost up to 5.0 GHz, while providing 4 MB of L2 cache and 16 MB of L3 cache with a thermal design power of 125W and integrated Intel UHD Graphics 770.
788333-B21 supports DDR5 memory in a dual-channel configuration up to 128 GB and utilizes PCIe 5.0 for high-speed connectivity. Unlocked for overclocking and compatible with LGA 1700 chipsets, this processor is ideal for both gaming and workstation applications, backed by essential virtualization (Intel VT-x) and security (SGX) features.
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Request bulk order quote for 788333-B21 for additional pricing. Browse the full Hpe Dl580 Server Processors series or explore all Hpe products.
788333-B21 Specifications
- Height
- 1.5
- ECC Support
- No
- Use Case
- Gaming / Workstation
- CPU Socket
- LGA 1700
- Memory Channels
- Dual
- PCIe Version
- PCIe 5.0
- Depth
- 1.5
- Product Type
- Processors
- Brand
- Intel
- Virtualization Support
- Intel VT-x
- TDP
- 125W
- Cooler Included
- No
- Series
- Intel Core
- Category
- Desktop
- Max Memory Support
- 128 GB
- Memory Type Support
- DDR5
- Generation
- Intel 13th Gen
- Architecture
- Raptor Lake
- Instruction Set Extensions
- AVX2
- Cores
- 8
- Threads
- 16
- Overclocking Support
- Yes
- Integrated Graphics
- Intel UHD Graphics 770
- Unlocked
- Yes
- Base Clock
- 3.6
- Max Boost Clock
- 5.0
- L2 Cache
- 4
- Graphics Max Dynamic Frequency
- 1100
- Graphics Base Frequency
- 350
- L3 Cache
- 16
- Security Features
- SGX
- Weight
- 0.3
- Width
- 0.8
- Product Name
- Intel Core 13th Gen 788333-B21
788333-B21 Use Case
Enterprise Virtualization and Cloud Consolidation with 788333-B21-HP Xeon E7-8891 v3
A Fortune 500 healthcare provider consolidates 500+ physical servers into an HPE ProLiant DL580 Gen9 cluster powered by the 788333-B21-HP Xeon E7-8891 v3 10-Core 45 MB Cache 2.80 GHz CPU. This setup delivers 3× higher VM density and 40% lower CapEx. Outcome: streamlined IT operations, improved SLA compliance, and enterprise-grade resilience.
Real-Time Financial Risk Analytics using 788333-B21-HP Xeon E7-8891 v3
A global investment firm deploys the 788333-B21-HP Xeon E7-8891 v3 in its risk management cluster to run Monte Carlo simulations and options pricing in real time. The 10 cores at 2.80 GHz and 45 MB cache process 100M+ computations per second, cutting analysis latency from hours to minutes. Benefit: accelerated decision-making, minimized market exposure, and robust regulatory reporting.
In-Memory Database Acceleration on 788333-B21-HP Xeon E7-8891 v3
A leading retail chain leverages the 788333-B21-HP Xeon E7-8891 v3 to power its SAP HANA in-memory database for 200 million SKU and customer-behavior analytics. The CPU’s high clock speed and 45 MB cache deliver sub-second query responses and real-time inventory optimization. Impact: increased sales conversion, reduced stockouts, and enhanced customer satisfaction.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 788333-B21 |  P00881-B21 |  878151-B21 |  816647-L21 |  P05688-B21 | |
|---|---|---|---|---|---|
| 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 | DDR5 | DDR4 & DDR5 | DDR5 | DDR4 & DDR5 | DDR4 & DDR5 |
| Generation | Intel 13th Gen | Intel 12th Gen | Intel 13th Gen | Intel 12th Gen | Intel 13th Gen |
| Architecture | Raptor Lake | Alder Lake | Raptor Lake | Alder Lake | Raptor Lake |
| ECC Support | No | No | No | No | No |
| Security Features | SGX | None | SGX | SGX | 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-x | Intel VT-x | Intel VT-x | Intel VT-x |
| Cores | 8 | 12 | 8 | 8 | 8 |
| Threads | 16 | 20 | 16 | 16 | 16 |
| Base Clock | 3.6 | 3.6 | 3.2 | 3.6 | 3.6 |
| Max Boost Clock | 5.0 | 5.0 | 4.8 | 4.8 | 5.0 |
| Overclocking Support | Yes | Yes | Yes | No | Yes |
| L2 Cache | 4 | 12 | 4 | 4 | 4 |
| L3 Cache | 16 | 20 | 24 | 16 | 16 |
| 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 | 300 | 350 | 350 | 350 |
| Graphics Max Dynamic Frequency | 1100 | 1300 | 1200 | 1200 | 1100 |
| 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 | No | Yes |
| Cooler Included | No | No | No | No | No |
| Use Case | Gaming / Workstation | Gaming / Workstation | Gaming / Workstation / Server | Gaming | Gaming |
| Product Name | Intel Core 13th Gen 788333-B21 | Intel Core i7-12700K Processor | Intel Core i7-13700K | Intel Core i7-12700 (816647-L21) | Intel Core P05688-B21 |
| Height | 1.5 | N/A | N/A | 0.5 inches | N/A |
| Width | 0.8 | N/A | N/A | 1.5 inches | N/A |
| Depth | 1.5 | N/A | N/A | 1.5 inches | N/A |
| Weight | 0.3 | N/A | N/A | 0.3 lbs | N/A |
Reviews & Ratings
A
Asad Qureshi
5
Strong clock speed for specialized workloads.
C
Colin Matthews
5
Stable operation in production environments.
N
Noreen Zafar
4
Handled virtualization tasks effectively.
E
Edward Langford
5
Good option for maintaining Gen9 systems.
Questions & Answers
What are the key specifications of the HP Xeon E7-8891 v3 10-Core 45 MB Cache 2.80 GHz CPU?
The HP Xeon E7-8891 v3 features 10 cores and 20 threads, 2.80 GHz base frequency (up to 3.60 GHz turbo), 45 MB L3 cache, 165 W TDP, and FCLGA2011-3 socket.
Which socket does the HP Xeon E7-8891 v3 CPU require?
It requires the Intel FCLGA2011-3 socket (also known as Socket R3), compatible with select HP ProLiant Gen9 and Gen10 server motherboards.
How many cores and threads does the Xeon E7-8891 v3 support?
The processor provides 10 physical cores and, with Intel Hyper-Threading, supports 20 simultaneous threads for parallel workloads.
What is the base and maximum turbo clock speed of this CPU?
The base clock runs at 2.80 GHz with Intel Turbo Boost up to 3.60 GHz under supported workloads.
What is the total L3 cache size?
The CPU includes a large 45 MB Intel Smart Cache, optimizing data access for high-demand applications.
What is the thermal design power (TDP) rating?
This model has a TDP of 165 W, requiring adequate server cooling and power delivery.
Does the HP Xeon E7-8891 v3 support Intel Hyper-Threading Technology?
Yes, it supports Intel Hyper-Threading, doubling thread count to 20 for improved multitasking and throughput.
Is the CPU compatible with HP ProLiant server systems?
Yes, it is validated for HP ProLiant Gen9 and Gen10 servers with FCLGA2011-3 sockets and appropriate BIOS versions.
Does this processor support hardware virtualization?
Yes, it includes Intel VT-x, VT-d, and Intel Virtual RAID on CPU for secure and efficient virtualization.
Which memory types and speeds are supported?
Supports quad-channel DDR4-1600/1866/2133 MHz ECC RDIMM or LRDIMM configurations for high bandwidth and reliability.
How does the E7-8891 v3 perform in enterprise workloads?
Designed for mission-critical tasks—databases, analytics, ERP, virtualization—delivering consistent high performance and uptime.
Can I deploy the Xeon E7-8891 v3 in multi-socket configurations?
Yes, it supports up to eight-socket server configurations on compatible HP platforms for massive parallel processing.
What are the ideal use cases for this CPU?
Ideal for large-scale databases, enterprise resource planning, in-memory computing, analytics, and heavy virtualization environments.
What warranty coverage is offered?
HP provides a standard three-year limited warranty with replacement service for this processor when installed in qualified systems.
How does the E7-8891 v3 differ from the E7-8891 v4?
The v4 offers slightly higher base/turbo clocks and improved power efficiency; v3 remains a reliable choice with similar multi-socket support.
What factors should I consider when upgrading to this CPU?
Ensure FCLGA2011-3 socket compatibility, adequate cooling and power, ECC DDR4 support, and that your workload benefits from 10 cores/20 threads.