Product comparison · 2 cpus

Lenovo Intel Xeon E5-2643 v2 vs Lenovo Intel Xeon E5-4657L v2

Key differences

Processor family
- Intel Xeon E5-2643 v2:Intel® Xeon® E5 V2 Family
- Intel Xeon E5-4657L v2:Intel® Xeon® E5 Family
Processor model
- Intel Xeon E5-2643 v2:E5-2643V2
- Intel Xeon E5-4657L v2:E5-4657LV2
Processor base frequency
- Intel Xeon E5-2643 v2:3.5 GHz
- Intel Xeon E5-4657L v2:2.4 GHz
Processor cores
- Intel Xeon E5-2643 v2:6
- Intel Xeon E5-4657L v2:12
Processor lithography
- Intel Xeon E5-2643 v2:28 nm
- Intel Xeon E5-4657L v2:22 nm
Processor threads
- Intel Xeon E5-2643 v2:12
- Intel Xeon E5-4657L v2:24
Processor boost frequency
- Intel Xeon E5-2643 v2:3.8 GHz
- Intel Xeon E5-4657L v2:2.9 GHz
Processor cache
- Intel Xeon E5-2643 v2:25 MB
- Intel Xeon E5-4657L v2:30 MB

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2643 v2, Intel Xeon E5-4657L v2
54 specifications	A Lenovo Intel Xeon E5-2643 v2 View product	B Lenovo Intel Xeon E5-4657L v2 View product
Processor10 differ
Processor familyDiffers	Intel® Xeon® E5 V2 Family	Intel® Xeon® E5 Family
Processor modelDiffers	E5-2643V2	E5-4657LV2
Processor base frequencyDiffers	3.5 GHz	2.4 GHz
Processor coresDiffers	6	12
Processor lithographyDiffers	28 nm	22 nm
Processor threadsDiffers	12	24
Processor boost frequencyDiffers	3.8 GHz	2.9 GHz
Processor cacheDiffers	25 MB	30 MB
Thermal Design Power (TDP)Differs	130 W	115 W
VID Voltage RangeDiffers	0.65 - 1.30 V	0.65 - 1.3 V
Processor codenameKnown for one	Unknown — not stated by the source	Ivy Bridge
Features2 differ
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x4, 1x8, 1x16
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX
CPU configuration (max)Differs	2	4
ScalabilityDiffers	2S	4S
Processor special featuresidentical
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel® Identity Protection Technology (Intel® IPT)Known for one	No	Unknown — not stated by the source
Intel® vPro™ Platform EligibilityKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
TcaseDiffers	78 °C	81 °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.