Product comparison · 2 cpus

Dell Intel Xeon E7520 vs Dell Intel Xeon L5640

23specifications compared
14differ
9identical
19known for one product only

Key differences

Processor family
- Intel Xeon E7520:Intel® Xeon® 7000 Sequence
- Intel Xeon L5640:Intel® Xeon® 5000 Sequence
Processor model
- Intel Xeon E7520:E7520
- Intel Xeon L5640:L5640
Processor base frequency
- Intel Xeon E7520:1.866 GHz
- Intel Xeon L5640:2.26 GHz
Processor cores
- Intel Xeon E7520:4
- Intel Xeon L5640:6
Processor socket
- Intel Xeon E7520:LGA 1567 (Socket LS)
- Intel Xeon L5640:Socket B (LGA 1366)
Processor lithography
- Intel Xeon E7520:45 nm
- Intel Xeon L5640:32 nm
Processor threads
- Intel Xeon E7520:8
- Intel Xeon L5640:12
System bus rate
- Intel Xeon E7520:4.8 GT/s
- Intel Xeon L5640:5.86 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E7520, Intel Xeon L5640
42 specifications	A Dell Intel Xeon E7520 View product	B Dell Intel Xeon L5640 View product
Processor12 differ
Processor familyDiffers	Intel® Xeon® 7000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E7520	L5640
Processor base frequencyDiffers	1.866 GHz	2.26 GHz
Processor coresDiffers	4	6
Processor socketDiffers	LGA 1567 (Socket LS)	Socket B (LGA 1366)
Processor lithographyDiffers	45 nm	32 nm
Package typeKnown for one	Unknown — not stated by the source	Tray
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	12
System bus rateDiffers	4.8 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	18 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	95 W	60 W
VID Voltage RangeDiffers	0.675 - 1.35 V	0.75 - 1.35 V
SteppingDiffers	D0	B1
Bus typeKnown for one	Unknown — not stated by the source	QPI
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	32 GB/s
Processor boost frequencyKnown for one	1.866 GHz	Unknown — not stated by the source
Memoryidentical
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	288 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,1066,1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
ECCKnown for one	Unknown — not stated by the source	Yes
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Market segment	Server	Server
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
CPU configuration (max)Known for one	Unknown — not stated by the source	2
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	70 °C	69.4 °C
Other features1 differ
Intel® Virtualization Technology (Intel® VT)Differs	VT-x	VT-d, VT-x

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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