Intel Xeon E5-2643V3 Processor - Quad-Channel Server
- 3.4 GHz clock speed •
- 20 MB cache •
- LGA 2011-v3 socket •
- Quad-channel memory •
- More features
Offers updated on: 02/07/2026. Paid and non-exhaustive ads ★ The ratings are generated from multiple sources, including data provided by the merchant and publicly available information.
Description
Intel Xeon E5-2643V3 Processor - Quad-Channel Server launched in Q3'14, offers workstation- and server-grade performance in a reliable Haswell-based package.
This Intel Xeon E5-2643 v3 (20M Cache, 3.40 GHz) features six physical cores and twelve threads with a base frequency of 3.4 GHz and Intel Turbo Boost 2.0 up to 3.7 GHz, delivering responsive single-thread and multi-thread performance for demanding server workloads.
Built on a 22 nm process and using the LGA 2011-v3 socket, the processor supports quad-channel DDR4 memory at 1600–2133 MHz and a maximum of 768 GB of ECC memory, making it well suited to memory-intensive applications and virtualization tasks.
With a 20 MB Smart Cache, a 9.6 GT/s QPI bus (two QPI links), and support for up to 40 PCIe lanes (PCIe 3.0, x4/x8/x16 configurations), the E5-2643 v3 is designed for high-throughput IO, database operations, and I/O-heavy server roles.
Power and platform features include a 135 W TDP, support for Intel VT-x and VT-d virtualization technologies, Intel Hyper-Threading, AES-NI, Intel Trusted Execution, and advanced power management such as Enhanced Intel SpeedStep and Demand Based Switching.
Although supplied as a tray package without a cooler and now discontinued, this CPU remains valuable for 2-socket (2S) server configurations and workstation rebuilds where proven Haswell-class performance and broad ECC DRAM support are required.
Typical use cases include virtualization hosts, database and analytics servers, engineering workstations, and legacy platform refreshes that require strong single-thread throughput combined with reliable multi-core scalability.
Key selling points: high base clock (3.4 GHz), 6 cores / 12 threads, 20 MB Smart Cache, quad-channel DDR4 ECC support up to 768 GB, 40 PCIe lanes, and enterprise virtualization features.
- 6 cores / 12 threads, 3.4–3.7 GHz (Turbo)
- Quad-channel DDR4, up to 768 GB ECC
- 40 PCIe 3.0 lanes, 2‑socket scalability
- 20 MB Intel Smart Cache, 135 W TDP
- Intel VT-x/VT-d, AES‑NI, Hyper‑Threading
Features
Processor
- Processor manufacturer:Intel
- Processor model:E5-2643V3
- Processor base frequency:3.4 GHz
- Processor family:Intel Xeon E5 v3
- Processor cores:6
- Processor socket:LGA 2011-v3
- Component for:Server/workstation
- Processor lithography:22 nm
- Processor series:Intel Xeon E5-2600 v3
- Processor threads:12
- System bus rate:9.6 GT/s
- Processor operating modes:64-bit
- Processor boost frequency:3.7 GHz
- Processor cache:20 MB
- Processor cache type:Smart Cache
- L3 cache speed:3.4 GHz
- Thermal Design Power (TDP):135 W
- Package type:Tray
- Cooler included:No
- VID Voltage Range:0.65 - 1.3 V
- Stepping:R2
- Bus type:QPI
- Number of QPI links:2
- Memory bandwidth supported by processor (max):68 GB/s
- Processor codename:Haswell
- Processor code:SR204
- Processor ARK ID:81900
Memory
- Maximum internal memory supported by processor:768 GB
- Memory types supported by processor:DDR4-SDRAM
- Memory clock speeds supported by processor:1600,1866,2133 MHz
- Memory channels:Quad-channel
- ECC:Yes
Graphics
- On-board graphics card:No
Features
- Execute Disable Bit:Yes
- Idle States:Yes
- Thermal Monitoring Technologies:Yes
- Market segment:Server
- Maximum number of PCI Express lanes:40
- PCI Express slots version:3.0
- PCI Express configurations:x4, x8, x16
- Supported instruction sets:AVX 2.0
- Scalability:2S
- Physical Address Extension (PAE):Yes
- CPU configuration (max):2
- Embedded options available:No
- Physical Address Extension (PAE):46 bit
- PCI Express CEM revision:3.0
- Export Control Classification Number (ECCN):5A992C
- Commodity Classification Automated Tracking System (CCATS):G077159
Processor special features
- Intel® Hyper Threading Technology (Intel® HT Technology):Yes
- Intel® Identity Protection Technology (Intel® IPT):No
- Intel® Turbo Boost Technology:2.0
- Intel Flex Memory Access:No
- Intel® Smart Cache:Yes
- Intel® AES New Instructions (Intel® AES-NI):Yes
- Enhanced Intel SpeedStep Technology:Yes
- Intel Trusted Execution Technology:Yes
- Intel® Turbo Boost Technology 2.0 frequency:3.7 GHz
- Intel® Transactional Synchronization Extensions:No
- Intel Enhanced Halt State:Yes
- Intel VT-x with Extended Page Tables (EPT):Yes
- Intel Demand Based Switching:Yes
- Intel® Secure Key:Yes
- Intel TSX-NI:No
- Intel® OS Guard:Yes
- Intel 64:Yes
- Intel Identity Protection Technology version:0.00
- Intel Secure Key Technology version:1.00
- Intel Virtualization Technology (VT-x):Yes
- Intel Virtualization Technology for Directed I/O (VT-d):Yes
- Intel TSX-NI version:0.00
- Conflict-Free processor:No
- Intel® vPro™ Platform Eligibility:Yes
Operational conditions
- Tcase:77.3 °C
Technical details
- Born on date:Q3'14
- Bus bandwidth:9.6
- Bus type units:GT/s
- Launch date:Q3'14
- Processor cache:20480 KB
- Processor core voltage:0.65–1.30
- Product name:Intel Xeon E5-2643 v3 (20M Cache, 3.40 GHz)
- Product type:Processor
- Status:Discontinued
- Maximum memory:768 GB
- Processor brand name:Intel Xeon v2
- Supported memory types:DDR4-SDRAM
- Last change:63903513
- Product family:Intel Xeon Processor E5 v3 Family
- Bus speed:9.6 GT/s
Logistics data
- Harmonized System (HS) code:8542310001
Weight & dimensions
- Processor package size:52.5mm x 45mm
Other features
- Intel® Virtualization Technology (Intel® VT):VT-d, VT-x
- Maximum internal memory:768 GB
- Maximum internal memory:786432 MB
- Cache memory:20 MB
Price history
Bringing together products, prices and retailers in one place to help you find what you need, compare deals and save.
Professionnals
Due to technical constraints, Kelkoo cannot guarantee the complete accuracy, nor the completeness of the information provided by the merchants. As a result, and due to the nature of Kelkoo's activities, in the event of discrepancies between the information displayed on the Kelkoo website or ads and the one displayed on the merchant's website, the latter will prevail. Prices shown are including all fees. - Learn more
company