Product Collection
Intel® Xeon® Processor E5 Family
Vertical Segment
Server
Processor Number
E5-2643
Lithography
32 nm

CPU Specifications

Total Cores
4
Total Threads
8
Max Turbo Frequency
3.50 GHz
Intel® Turbo Boost Technology 2.0 Frequency
3.50 GHz
Processor Base Frequency
3.30 GHz
Cache
10 MB Intel® Smart Cache
Bus Speed
8 GT/s
# of QPI Links
2
TDP
130 W

Supplemental Information

Marketing Status
Discontinued
Launch Date
Q1'12
Expected Discontinuance
Q2'15
Servicing Status
End of Servicing Lifetime
End of Servicing Updates Date
Tuesday, June 30, 2020
Embedded Options Available
No

Memory Specifications

Max Memory Size (dependent on memory type)
384 GB
Memory Types
DDR3 800/1066/1333/1600
Max # of Memory Channels
4
Max Memory Bandwidth
51.2 GB/s
ECC Memory Supported
Yes

Expansion Options

Scalability
2S Only
PCI Express Revision
3.0
Max # of PCI Express Lanes
40

Package Specifications

Sockets Supported
FCLGA2011
Max CPU Configuration
2
TCASE
73°C
Package Size
52.5mm x 45.0mm

Advanced Technologies

Intel® Turbo Boost Technology
2.0
Intel® Hyper-Threading Technology
Yes
Intel® 64
Yes
Instruction Set
64-bit
Instruction Set Extensions
Intel® AVX
Idle States
Yes
Enhanced Intel SpeedStep® Technology
Yes
Intel® Demand Based Switching
Yes
Thermal Monitoring Technologies
Yes
Intel® Flex Memory Access
No
Intel® Identity Protection Technology
No

Security & Reliability

Intel vPro® Eligibility
Intel vPro® Platform
Intel® AES New Instructions
Yes
Intel® Trusted Execution Technology
Yes
Execute Disable Bit
Yes
Intel® Virtualization Technology (VT-x)
Yes
Intel® Virtualization Technology for Directed I/O (VT-d)
Yes
Intel® VT-x with Extended Page Tables (EPT)
Yes