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Intel Xeon E5-2643 4C 3.30GHz LGA2011 CPU
Inclusive of VAT Β· Warranty included
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.
About this processor
Intel Xeon E5-2643, a 4 core, 8 thread LGA2011 processor at 3.30GHz with 3.50GHz turbo and 10MB cache for DDR3 servers and workstations, refurbished. Tested and stocked in Doha, delivered across Qatar within a day.
The Xeon E5-2643 is the high clock four core of Intel's original E5 family for the LGA2011 socket, the Sandy Bridge generation with DDR3 memory. It runs a 3.30GHz base and 3.50GHz turbo with 10MB of cache and a 130W rating, and supports PCIe 3.0. It was built for workstations and licensed-per-core servers of its day, where a few fast cores beat many slow ones.
Buyers in Qatar fit the refurbished 2643 to 12th generation Dell, HPE Gen8 and Z series workstations of the DDR3 era, either to replace a failed part or to give an older workstation running single threaded software the fastest clock its socket allows. ServerDove keeps it in Doha stock.
- Cores
- 4C / 8T
- Clock
- 3.30 to 3.50GHz
- Cache
- 10MB
- Socket
- LGA2011
- Memory
- DDR3
Part numbers and identification
The first generation E5 parts carry no version suffix. Buyers search for "E5-2643", "Xeon 2643" and "E5-2643 LGA2011".
| SKU | CPU-INTEL-E5-2643 |
| Model | Intel Xeon E5-2643 |
| Family | Xeon E5, first generation, Sandy Bridge |
Specification
A 130W rating on four cores tells the story: this processor spends its power budget on clock speed. It needs the heatsink of a 130W part even though it has only four cores.
| Cores | 4 |
| Threads | 8 |
| Base clock | 3.30GHz |
| Turbo clock | 3.50GHz |
| Cache | 10MB Smart Cache |
| Socket | LGA2011 |
| TDP | 130W |
| Memory support | DDR3, four channels |
| PCIe | PCIe 3.0, 40 lanes |
Turbo Boost adds only 200MHz over the base clock, so the processor runs close to its maximum speed all the time rather than relying on bursts, which suits sustained engineering calculations. Hyper-Threading doubles the four cores to eight threads for lighter background tasks.
Its uses today are specific: CAD and engineering seats on LGA2011 workstations, instrument controllers whose software is locked to a hardware generation, and licence bound servers where four fast cores keep costs down. For general server duty the v2 parts of the same socket with more cores are the better choice.
Installation
The E5-2643 fits any LGA2011 board of the DDR3 generation and needs no firmware beyond what shipped with v1 support. Release the two socket levers, place the processor with its notches aligned, close the levers, apply thermal compound and fit a heatsink rated for 130W. In a dual socket workstation both processors must be the same model. Memory is DDR3 ECC Registered, four channels per socket, and runs at up to 1600 MT/s.
In the box
- The part as described, with the part number shown
Images are for illustration. The unit supplied is the one described in the specification and may differ cosmetically.
Not included
- The server or system it installs into
- Mounting hardware, screws or caddies unless listed
- Cables unless listed
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 refurbished?
Enterprise-grade performance at a fraction of the price of new.
Fully tested and verified
Every unit goes through hardware diagnostics before dispatch: POST tests, burn-in, memory checks and power supply verification.
Enterprise performance for less
Refurbished units deliver the same hardware capability as new, at significantly lower upfront cost, freeing budget for CPUs, memory and storage.
Available now
New enterprise hardware carries lead times of weeks or months. Our stock is held in Doha and ready to ship within 24 hours.
Backed by support
Warranty on every unit we sell, with installation and ongoing hardware support available across Qatar.