Product comparison · 2 cpus

Lenovo Intel Xeon Processor E5640 vs Lenovo Xeon L5640

Key differences

Processor model
- Intel Xeon Processor E5640:E5640
- Xeon L5640:L5640
Processor base frequency
- Intel Xeon Processor E5640:2.66 GHz
- Xeon L5640:2.26 GHz
Processor cache type
- Intel Xeon Processor E5640:L3
- Xeon L5640:L2
Thermal Design Power (TDP)
- Intel Xeon Processor E5640:80 W
- Xeon L5640:60 W
VID Voltage Range
- Intel Xeon Processor E5640:0.8 - 1.3 V
- Xeon L5640:0.800 - 1.300 V
CPU multiplier (bus/core ratio)
- Intel Xeon Processor E5640:20
- Xeon L5640:17

Differences highlightedShow differences only

Comparison of Intel Xeon Processor E5640, Xeon L5640
21 specifications	A Lenovo Intel Xeon Processor E5640 View product	B Lenovo Xeon L5640 View product
Processor6 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5640	L5640
Processor base frequencyDiffers	2.66 GHz	2.26 GHz
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Package type	Tray	Tray
Component for	Server/workstation	Server/workstation
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cache	12 MB	12 MB
Processor cache typeDiffers	L3	L2
L3 cache speedKnown for one	2.66 GHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage RangeDiffers	0.8 - 1.3 V	0.800 - 1.300 V
SteppingKnown for one	B1	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	20	17
Processor codeKnown for one	SLBVC	Unknown — not stated by the source
Processor coresKnown for one	Unknown — not stated by the source	6
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Featuresidentical
Market segment	Server	Server
Operational conditionsidentical
Maximum operating temperatureKnown for one	77.6 °C	Unknown — not stated by the source

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.