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Intel Xeon E5-2643 4C 3.30GHz LGA2011 CPU
INTEL
Product Specification
| Brand | INTEL |
| Model | Xeon E5-2643 |
| Cores | 4 |
| Threads | 8 |
| Base Clock | 3.30GHz |
| Turbo Clock | 3.50GHz |
| Cache | 10MB Smart Cache |
| Socket | LGA2011 |
| TDP | 130W |
| Memory Support | DDR3 |
| PCIe Support | PCIe 3.0 |
About This Product
Overview
The Intel Xeon E5-2643 is a server-class CPU designed for systems that use the LGA2011 socket. With 4 cores and 8 threads, it provides a balanced mix of processing capability and efficiency for compatible workstations and servers. Its 3.30GHz base clock and 3.50GHz turbo clock help support responsive performance in everyday compute tasks, while the 10MB Smart Cache contributes to smoother access to frequently used data. This processor is a practical option for buyers looking to maintain or upgrade an existing platform built around Intel Xeon E5 family hardware. Because it supports DDR3 memory and PCIe 3.0, it fits into systems that rely on established server components and expansion options. For IT environments, that can make it useful for replacement needs, refurbishment projects, or extending the life of compatible equipment without changing the overall platform design.
Performance & Scalability
With 4 cores and 8 threads, the Xeon E5-2643 is suited to workloads that benefit from solid single-socket processing and moderate multithreaded capability. The 3.50GHz turbo clock can help the processor respond to bursts of demand, while the 130W TDP reflects the power profile of a performance-oriented server CPU. In compatible systems, PCIe 3.0 support allows the platform to work with expansion cards that depend on modern bandwidth for the generation, and DDR3 memory support keeps it aligned with the memory architecture used by many LGA2011 systems. This makes the processor a sensible choice for environments where stability, compatibility, and straightforward replacement are more important than moving to a newer platform. It can also be a useful part for technicians and resellers supporting legacy infrastructure that still has a clear role in business or lab settings.
Storage Flexibility
While the processor itself does not include storage, its PCIe 3.0 support helps the surrounding system work with compatible expansion hardware that may be used in storage-focused builds. In an LGA2011 platform, that can be valuable when pairing the CPU with controllers, adapters, or other components that support the overall storage configuration. The Xeon E5-2643 is therefore a good fit for systems where the processor needs to complement existing infrastructure rather than define it. For buyers maintaining a server or workstation, this can help preserve the use of current storage hardware and related expansion options within a compatible motherboard and memory environment.
Why Choose This Product?
The Intel Xeon E5-2643 is a strong choice when you need a compatible replacement CPU for an LGA2011 system and want a straightforward path to keep hardware in service. Its combination of 4 cores, 8 threads, 3.30GHz base frequency, 3.50GHz turbo frequency, and 10MB Smart Cache offers a dependable specification set for supported server and workstation platforms. Because it works with DDR3 memory and PCIe 3.0, it aligns well with established systems that are still being used in production, testing, or refurbishment. For IT buyers, this can simplify sourcing by focusing on a known processor model that matches existing infrastructure requirements. It is especially useful for organizations and technicians looking for a practical CPU option within the Intel Xeon E5 family.
Frequently Asked Questions
What socket does the Intel Xeon E5-2643 use?
This processor uses the LGA2011 socket and is intended for compatible server and workstation motherboards.
How many cores and threads does this CPU have?
The Intel Xeon E5-2643 has 4 cores and 8 threads.
What memory type is supported?
This CPU supports DDR3 memory in compatible systems.
Does the Xeon E5-2643 support PCIe 3.0?
Yes, PCIe 3.0 support is listed for this processor.
Is this processor suitable for legacy system replacements?
Yes, it is a practical option for replacing or maintaining compatible LGA2011 systems.
Why Buy a Refurbished Products?
Refurbished enterprise servers offer enterprise-grade performance at a fraction of the new price.
Up to 70% Cost Savings
Refurbished R650xs units deliver identical hardware capability to new, at significantly lower upfront cost — freeing budget for CPUs, RAM, and storage.
Fully Tested & Verified
Every unit undergoes comprehensive hardware diagnostics before dispatch. POST tests, burn-in, memory checks, and power supply verification are standard.
Immediate Availability
Unlike new enterprise servers with lead times of weeks or months, refurbished stock is ready to ship within 24 hours of ordering.
Same Performance
The hardware inside the R650xs performs identically whether purchased new or refurbished. The 3rd Gen Xeon platform, PCIe Gen4, and iDRAC9 are unchanged.