Product Collection
Intel® Xeon® Processor E3 v3 Family
Vertical Segment
Server
Processor Number
E3-1281V3
Lithography
22 nm

CPU Specifications

Total Cores
4
Total Threads
8
Max Turbo Frequency
4.10 GHz
Intel® Turbo Boost Technology 2.0 Frequency
4.10 GHz
Processor Base Frequency
3.70 GHz
Cache
8 MB Intel® Smart Cache
Bus Speed
5 GT/s
# of QPI Links
0
TDP
82 W

Supplemental Information

Marketing Status
Discontinued
Launch Date
Q2'14
Servicing Status
End of Servicing Lifetime
End of Servicing Updates Date
Wednesday, June 30, 2021
Embedded Options Available
No
Datasheet

Memory Specifications

Max Memory Size (dependent on memory type)
32 GB
Memory Types
DDR3 and DDR3L 1333/1600 at 1.5V
Max # of Memory Channels
2
Max Memory Bandwidth
25.6 GB/s
ECC Memory Supported
Yes

Expansion Options

Scalability
1S Only
PCI Express Revision
3.0
PCI Express Configurations
1x16, 2x8, 1x8/2x4
Max # of PCI Express Lanes
16

Package Specifications

Sockets Supported
FCLGA1150
Max CPU Configuration
1
Thermal Solution Specification
PCG 2013D
Package Size
37.5mm x 37.5mm

Advanced Technologies

Intel® Turbo Boost Technology
2.0
Intel® Hyper-Threading Technology
Yes
Intel® Transactional Synchronization Extensions
Yes
Intel® 64
Yes
Instruction Set
64-bit
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Idle States
Yes
Enhanced Intel SpeedStep® Technology
Yes
Thermal Monitoring Technologies
Yes
Intel® Fast Memory Access
Yes
Intel® Flex Memory Access
Yes
Intel® Identity Protection Technology
Yes

Security & Reliability

Intel vPro® Eligibility
Intel vPro® Platform
Intel® AES New Instructions
Yes
Secure Key
Yes
Intel® OS Guard
Yes
Intel® Trusted Execution Technology
Yes
Execute Disable Bit
Yes
Anti-Theft Technology
Yes
Intel® Stable IT Platform Program (SIPP)
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