Product comparison · 2 cpus

Lenovo Intel Xeon E5-2407 vs Lenovo Intel Xeon E5-4640

Key differences

Processor model
- Intel Xeon E5-2407:E5-2407
- Intel Xeon E5-4640:E5-4640
Processor base frequency
- Intel Xeon E5-2407:2.2 GHz
- Intel Xeon E5-4640:2.4 GHz
Processor cores
- Intel Xeon E5-2407:4
- Intel Xeon E5-4640:8
Processor socket
- Intel Xeon E5-2407:LGA 1356 (Socket B2)
- Intel Xeon E5-4640:LGA 2011 (Socket R)
Processor threads
- Intel Xeon E5-2407:4
- Intel Xeon E5-4640:16
System bus rate
- Intel Xeon E5-2407:6.4 GT/s
- Intel Xeon E5-4640:8 GT/s
Processor cache
- Intel Xeon E5-2407:10 MB
- Intel Xeon E5-4640:20 MB
Thermal Design Power (TDP)
- Intel Xeon E5-2407:80 W
- Intel Xeon E5-4640:95 W

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2407, Intel Xeon E5-4640
48 specifications	A Lenovo Intel Xeon E5-2407 View product	B Lenovo Intel Xeon E5-4640 View product
Processor11 differ
Processor modelDiffers	E5-2407	E5-4640
Processor base frequencyDiffers	2.2 GHz	2.4 GHz
Processor coresDiffers	4	8
Processor socketDiffers	LGA 1356 (Socket B2)	LGA 2011 (Socket R)
Processor threadsDiffers	4	16
System bus rateDiffers	6.4 GT/s	8 GT/s
Processor cacheDiffers	10 MB	20 MB
Thermal Design Power (TDP)Differs	80 W	95 W
VID Voltage RangeDiffers	0.65 - 1.30 V	0.6 - 1.35 V
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	25 GB/s	51.2 GB/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.8 GHz
Memory2 differ
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333,1600 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
Features2 differ
Maximum number of PCI Express lanesDiffers	24	40
ScalabilityDiffers	2S	4S
Processor special features2 differ
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	No	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	No	Yes
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	No

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.