Essentials

Product Collection Legacy Intel Xeon Processors
Code Name Products formerly Westmere EP
Vertical Segment Server
Processor Number E5645
Status Launched
Launch Date Q1'10
Lithography 32 nm
Use Conditions Communications

Performance

# of Cores 6
# of Threads 12
Processor Base Frequency 2.40 GHz
Max Turbo Frequency 2.67 GHz
Cache 12 MB Intel Smart Cache
Bus Speed 5.86 GT/s
# of QPI Links 2
TDP 80 W
VID Voltage Range 0.750V-1.350V

Supplemental Information

Embedded Options Available Yes

Memory Specifications

Max Memory Size (dependent on memory type) 288 GB
Memory Types DDR3 800/1066/1333
Max # of Memory Channels 3
Max Memory Bandwidth 32 GB/s
Physical Address Extensions 40-bit
ECC Memory Supported Yes

Package Specifications

Sockets Supported FCLGA1366
Max CPU Configuration 2
TCASE 76.2°C
Package Size 42.5mm X 45mm

Advanced Technologies

Intel Turbo Boost Technology 1.0
Intel Hyper-Threading Technology 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
Intel 64 Yes
Instruction Set 64-bit
Instruction Set Extensions Intel SSE4.2
Idle States Yes
Enhanced Intel SpeedStep Technology Yes
Intel Demand Based Switching Yes
Thermal Monitoring Technologies No

Security & Reliability

Intel AES New Instructions Yes
Intel Trusted Execution Technology Yes
Execute Disable Bit Yes