Product Collection
Legacy Intel® Xeon® Processors
Vertical Segment
Server
Processor Number
E5520
Lithography
45 nm

CPU Specifications

Physical Core Count
4
Total Threads
8
Max Turbo Frequency
2.53 GHz
Processor Base Frequency
2.26 GHz
Cache
8 MB Intel® Smart Cache
Bus Speed
5.86 GT/s
# of QPI Links
2
TDP
80 W

Supplemental Information

Marketing Status
Discontinued
Launch Date
Q1'09
Servicing Status
End of Servicing Lifetime
Embedded Options Available
No
Datasheet

Memory Specifications

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

Package Specifications

Sockets Supported
FCLGA1366
Max CPU Configuration
2
TCASE
72°C
Package Size
42.5mm x 45mm
Processing Die Size
263 mm2
# of Processing Die Transistors
731 million

Advanced Technologies

Intel® Turbo Boost Technology
1.0
Intel® Hyper-Threading Technology
Yes
Intel® 64
Yes
Instruction Set
64-bit
Idle States
Yes
Enhanced Intel SpeedStep® Technology
Yes
Intel® Demand Based Switching
Yes

Security & Reliability

Intel® Trusted Execution Technology
No
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