Product comparison · 2 cpus

Lenovo Xeon E5640 vs Lenovo Xeon L5640

17specifications compared
7differ
10identical
0known for one product only

Key differences

The Lenovo Xeon E5640 has 0.4 GHz more processor base frequency than the Lenovo Xeon L5640 (2.66 GHz vs 2.26 GHz). The Lenovo Xeon L5640 has 2 more processor cores than the Lenovo Xeon E5640 (6 vs 4). The Lenovo Xeon L5640 has 267 MHz more processor front side bus than the Lenovo Xeon E5640 (1333 MHz vs 1066 MHz). Processor model: E5640 on the Lenovo Xeon E5640, L5640 on the Lenovo Xeon L5640. Package type: Box on the Lenovo Xeon E5640, Tray on the Lenovo Xeon L5640.

Processor model
- Xeon E5640:E5640
- Xeon L5640:L5640
Processor base frequency
- Xeon E5640:2.66 GHz
- Xeon L5640:2.26 GHz
Processor cores
- Xeon E5640:4
- Xeon L5640:6
Package type
- Xeon E5640:Box
- Xeon L5640:Tray
Processor front side bus
- Xeon E5640:1066 MHz
- Xeon L5640:1333 MHz
Thermal Design Power (TDP)
- Xeon E5640:80 W
- Xeon L5640:60 W
CPU multiplier (bus/core ratio)
- Xeon E5640:20
- Xeon L5640:17

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5640, Xeon L5640
17 specifications	A Lenovo Xeon E5640 View product	B Lenovo Xeon L5640 View product
Processor7 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 coresDiffers	4	6
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Package typeDiffers	Box	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 type	L2	L2
Processor front side busDiffers	1066 MHz	1333 MHz
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage Range	0.800 - 1.300 V	0.800 - 1.300 V
CPU multiplier (bus/core ratio)Differs	20	17
Featuresidentical
Market segment	Server	Server

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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