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
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