Product comparison · 2 cpus

Lenovo Inte Xeon L5609 vs Lenovo Intel Xeon E5645

Key differences

Processor model
- Inte Xeon L5609:L5609
- Intel Xeon E5645:E5645
Processor base frequency
- Inte Xeon L5609:1.86 GHz
- Intel Xeon E5645:2.4 GHz
Processor cores
- Inte Xeon L5609:4
- Intel Xeon E5645:6
Processor threads
- Inte Xeon L5609:4
- Intel Xeon E5645:12
System bus rate
- Inte Xeon L5609:4.8 GT/s
- Intel Xeon E5645:5.86 GT/s
Thermal Design Power (TDP)
- Inte Xeon L5609:40 W
- Intel Xeon E5645:80 W
Processor code
- Inte Xeon L5609:SLBVJ
- Intel Xeon E5645:SLBWZ
Maximum operating temperature
- Inte Xeon L5609:63.1 °C
- Intel Xeon E5645:76.2 °C

Differences highlightedShow differences only

Comparison of Inte Xeon L5609, Intel Xeon E5645
22 specifications	A Lenovo Inte Xeon L5609 View product	B Lenovo Intel Xeon E5645 View product
Processor7 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	L5609	E5645
Processor base frequencyDiffers	1.86 GHz	2.4 GHz
Processor coresDiffers	4	6
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Processor threadsDiffers	4	12
System bus rateDiffers	4.8 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Thermal Design Power (TDP)Differs	40 W	80 W
VID Voltage Range	0.750 - 1.350 V	0.750 - 1.350 V
Stepping	B1	B1
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	18
Processor codeDiffers	SLBVJ	SLBWZ
Package typeKnown for one	Tray	Unknown — not stated by the source
Featuresidentical
Market segmentKnown for one	Unknown — not stated by the source	Server
BandwidthKnown for one	Unknown — not stated by the source	32768 MB/s
Operational conditions1 differ
Maximum operating temperatureDiffers	63.1 °C	76.2 °C

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.