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Intel® Xeon® Processor E5520

Intel® Xeon® Processor E5620

Essentials


Product Collection
Vertical Segment
Processor Number
Lithography


Product Collection	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Legacy Intel® Xeon® Processors	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Legacy Intel® Xeon® Processors
Vertical Segment	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Server	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Server
Processor Number	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) E5520	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) E5620
Lithography	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 45 nm	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 32 nm


Product Collection	Legacy Intel® Xeon® Processors Legacy Intel® Xeon® Processors
Vertical Segment	Server Server
Processor Number	E5520 E5620
Lithography	45 nm 32 nm

CPU Specifications


Total Cores
Total Threads
Max Turbo Frequency
Processor Base Frequency
Cache
Bus Speed
# of QPI Links
TDP


Total Cores	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 4	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 4
Total Threads	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 8	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 8
Max Turbo Frequency	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 2.53 GHz	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 2.66 GHz
Processor Base Frequency	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 2.26 GHz	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 2.40 GHz
Cache	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 8 MB Intel® Smart Cache	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 12 MB Intel® Smart Cache
Bus Speed	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 5.86 GT/s	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 5.86 GT/s
# of QPI Links	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 2	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 2
TDP	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 80 W	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 80 W


Total Cores	4 4
Total Threads	8 8
Max Turbo Frequency	2.53 GHz 2.66 GHz
Processor Base Frequency	2.26 GHz 2.40 GHz
Cache	8 MB Intel® Smart Cache 12 MB Intel® Smart Cache
Bus Speed	5.86 GT/s 5.86 GT/s
# of QPI Links	2 2
TDP	80 W 80 W

Supplemental Information


Marketing Status
Launch Date
Servicing Status
Embedded Options Available
Use Conditions


Marketing Status	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Discontinued	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Discontinued
Launch Date	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Q1'09	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Q1'10
Servicing Status	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) End of Servicing Lifetime	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) End of Servicing Lifetime
Embedded Options Available	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) No	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Use Conditions		Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Server/Enterprise


Marketing Status	Discontinued Discontinued
Launch Date	Q1'09 Q1'10
Servicing Status	End of Servicing Lifetime End of Servicing Lifetime
Embedded Options Available	No Yes
Use Conditions	Server/Enterprise

Memory Specifications


Max Memory Size (dependent on memory type)
Memory Types
Max # of Memory Channels
Max Memory Bandwidth
Physical Address Extensions
ECC Memory Supported ^‡


Max Memory Size (dependent on memory type)	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 144 GB	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 288 GB
Memory Types	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) DDR3 800/1066	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) DDR3 800/1066
Max # of Memory Channels	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 3	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 3
Max Memory Bandwidth	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 25.6 GB/s	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 25.6 GB/s
Physical Address Extensions	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 40-bit	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 40-bit
ECC Memory Supported ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes


Max Memory Size (dependent on memory type)	144 GB 288 GB
Memory Types	DDR3 800/1066 DDR3 800/1066
Max # of Memory Channels	3 3
Max Memory Bandwidth	25.6 GB/s 25.6 GB/s
Physical Address Extensions	40-bit 40-bit
ECC Memory Supported ^‡	Yes Yes

Package Specifications


Sockets Supported
Max CPU Configuration
T_CASE
Package Size
Processing Die Size
# of Processing Die Transistors


Sockets Supported	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) FCLGA1366	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) FCLGA1366,LGA1366
Max CPU Configuration	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 2	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 2
T_CASE	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 72°C	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 77.6°C
Package Size	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 42.5mm x 45mm	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 42.5mm X 45mm
Processing Die Size	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 263 mm²
# of Processing Die Transistors	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 731 million


Sockets Supported	FCLGA1366 FCLGA1366,LGA1366
Max CPU Configuration	2 2
T_CASE	72°C 77.6°C
Package Size	42.5mm x 45mm 42.5mm X 45mm
Processing Die Size	263 mm²
# of Processing Die Transistors	731 million

Advanced Technologies


Intel® Turbo Boost Technology ^‡
Intel® Hyper-Threading Technology ^‡
Intel® 64 ^‡
Instruction Set
Idle States
Enhanced Intel SpeedStep® Technology
Intel® Demand Based Switching
Instruction Set Extensions
Thermal Monitoring Technologies


Intel® Turbo Boost Technology ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 1.0	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 1.0
Intel® Hyper-Threading Technology ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® 64 ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Instruction Set	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) 64-bit	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) 64-bit
Idle States	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Enhanced Intel SpeedStep® Technology	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® Demand Based Switching	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Instruction Set Extensions		Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Intel® SSE4.2
Thermal Monitoring Technologies		Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) No


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

Security & Reliability


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


Intel® Trusted Execution Technology ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) No	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Execute Disable Bit ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® Virtualization Technology (VT-x) ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® VT-x with Extended Page Tables (EPT) ^‡	Intel® Xeon® Processor E5520 (8M Cache, 2.26 GHz, 5.86 GT/s Intel® QPI) Yes	Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes
Intel® AES New Instructions		Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Yes


Intel® Trusted Execution Technology ^‡	No Yes
Execute Disable Bit ^‡	Yes Yes
Intel® Virtualization Technology (VT-x) ^‡	Yes Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ^‡	Yes Yes
Intel® VT-x with Extended Page Tables (EPT) ^‡	Yes Yes
Intel® AES New Instructions	Yes

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All information provided is subject to change at any time, without notice. Intel may make changes to manufacturing life cycle, specifications, and product descriptions at any time, without notice. The information herein is provided "as-is" and Intel does not make any representations or warranties whatsoever regarding accuracy of the information, nor on the product features, availability, functionality, or compatibility of the products listed. Please contact system vendor for more information on specific products or systems.

Intel classifications are for general, educational and planning purposes only and consist of Export Control Classification Numbers (ECCN) and Harmonized Tariff Schedule (HTS) numbers. Any use made of Intel classifications are without recourse to Intel and shall not be construed as a representation or warranty regarding the proper ECCN or HTS. Your company as an importer and/or exporter is responsible for determining the correct classification of your transaction.

Refer to Datasheet for formal definitions of product properties and features.

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