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Intel® Xeon® Processor X5550

Intel® Xeon® Processor E5520

Intel® Xeon® Processor X5650

Intel® Xeon® Processor E5620

Essentials


Product Collection
Vertical Segment
Processor Number
Lithography


Product Collection	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Vertical Segment	Server	Server	Server	Server
Processor Number	X5550	E5520	X5650	E5620
Lithography	45 nm	45 nm	32 nm	32 nm


Product Collection	Legacy Intel® Xeon® Processors Legacy Intel® Xeon® Processors Legacy Intel® Xeon® Processors Legacy Intel® Xeon® Processors
Vertical Segment	Server Server Server Server
Processor Number	X5550 E5520 X5650 E5620
Lithography	45 nm 45 nm 32 nm 32 nm

CPU Specifications


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


Total Cores	4	4	6	4
Total Threads	8	8	12	8
Max Turbo Frequency	3.06 GHz	2.53 GHz	3.06 GHz	2.66 GHz
Processor Base Frequency	2.66 GHz	2.26 GHz	2.66 GHz	2.40 GHz
Cache	8 MB Intel® Smart Cache	8 MB Intel® Smart Cache	12 MB Intel® Smart Cache	12 MB Intel® Smart Cache
Bus Speed	6.4 GT/s	5.86 GT/s	6.4 GT/s	5.86 GT/s
# of QPI Links	2	2	2	2
TDP	95 W	80 W	95 W	80 W


Total Cores	4 4 6 4
Total Threads	8 8 12 8
Max Turbo Frequency	3.06 GHz 2.53 GHz 3.06 GHz 2.66 GHz
Processor Base Frequency	2.66 GHz 2.26 GHz 2.66 GHz 2.40 GHz
Cache	8 MB Intel® Smart Cache 8 MB Intel® Smart Cache 12 MB Intel® Smart Cache 12 MB Intel® Smart Cache
Bus Speed	6.4 GT/s 5.86 GT/s 6.4 GT/s 5.86 GT/s
# of QPI Links	2 2 2 2
TDP	95 W 80 W 95 W 80 W

Supplemental Information


Marketing Status
Launch Date
Servicing Status
Embedded Options Available
Use Conditions


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


Marketing Status	Discontinued Discontinued Discontinued Discontinued
Launch Date	Q1'09 Q1'09 Q1'10 Q1'10
Servicing Status	End of Servicing Lifetime End of Servicing Lifetime End of Servicing Lifetime End of Servicing Lifetime
Embedded Options Available	No No 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)	144 GB	144 GB	288 GB	288 GB
Memory Types	DDR3 800/1066/1333	DDR3 800/1066	DDR3 800/1066/1333	DDR3 800/1066
Max # of Memory Channels	3	3	3	3
Max Memory Bandwidth	32 GB/s	25.6 GB/s	32 GB/s	25.6 GB/s
Physical Address Extensions	40-bit	40-bit	40-bit	40-bit
ECC Memory Supported ^‡	Yes	Yes	Yes	Yes


Max Memory Size (dependent on memory type)	144 GB 144 GB 288 GB 288 GB
Memory Types	DDR3 800/1066/1333 DDR3 800/1066 DDR3 800/1066/1333 DDR3 800/1066
Max # of Memory Channels	3 3 3 3
Max Memory Bandwidth	32 GB/s 25.6 GB/s 32 GB/s 25.6 GB/s
Physical Address Extensions	40-bit 40-bit 40-bit 40-bit
ECC Memory Supported ^‡	Yes Yes Yes Yes

Package Specifications


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


Sockets Supported	FCLGA1366,PLGA1366	FCLGA1366	FCLGA1366,LGA1366	FCLGA1366,LGA1366
Max CPU Configuration	2	2	2	2
T_CASE	75°C	72°C	81.3°C	77.6°C
Package Size	42.5mm x 45mm	42.5mm x 45mm	42.5mm X 45mm	42.5mm X 45mm
Processing Die Size	263 mm²	263 mm²
# of Processing Die Transistors	731 million	731 million


Sockets Supported	FCLGA1366,PLGA1366 FCLGA1366 FCLGA1366,LGA1366 FCLGA1366,LGA1366
Max CPU Configuration	2 2 2 2
T_CASE	75°C 72°C 81.3°C 77.6°C
Package Size	42.5mm x 45mm 42.5mm x 45mm 42.5mm X 45mm 42.5mm X 45mm
Processing Die Size	263 mm² 263 mm²
# of Processing Die Transistors	731 million 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 ^‡	1.0	1.0	1.0	1.0
Intel® Hyper-Threading Technology ^‡	Yes	Yes	Yes	Yes
Intel® 64 ^‡	Yes	Yes	Yes	Yes
Instruction Set	64-bit	64-bit	64-bit	64-bit
Idle States	Yes	Yes	Yes	Yes
Enhanced Intel SpeedStep® Technology	Yes	Yes	Yes	Yes
Intel® Demand Based Switching	Yes	Yes	Yes	Yes
Instruction Set Extensions			Intel® SSE4.2	Intel® SSE4.2
Thermal Monitoring Technologies			No	No


Intel® Turbo Boost Technology ^‡	1.0 1.0 1.0 1.0
Intel® Hyper-Threading Technology ^‡	Yes Yes Yes Yes
Intel® 64 ^‡	Yes Yes Yes Yes
Instruction Set	64-bit 64-bit 64-bit 64-bit
Idle States	Yes Yes Yes Yes
Enhanced Intel SpeedStep® Technology	Yes Yes Yes Yes
Intel® Demand Based Switching	Yes Yes Yes Yes
Instruction Set Extensions	Intel® SSE4.2 Intel® SSE4.2
Thermal Monitoring Technologies	No 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 ^‡	No	No	Yes	Yes
Execute Disable Bit ^‡	Yes	Yes	Yes	Yes
Intel® Virtualization Technology (VT-x) ^‡	Yes	Yes	Yes	Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ^‡	Yes	Yes	Yes	Yes
Intel® VT-x with Extended Page Tables (EPT) ^‡	Yes	Yes	Yes	Yes
Intel® AES New Instructions			Yes	Yes


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

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