Product comparison · 2 cpus

Lenovo Intel Xeon E5-2643 v2 vs Lenovo Intel Xeon E5-4603 v2

Key differences

Processor model
- Intel Xeon E5-2643 v2:E5-2643V2
- Intel Xeon E5-4603 v2:E5-4603V2
Processor base frequency
- Intel Xeon E5-2643 v2:3.5 GHz
- Intel Xeon E5-4603 v2:2.2 GHz
Processor cores
- Intel Xeon E5-2643 v2:6
- Intel Xeon E5-4603 v2:4
Processor lithography
- Intel Xeon E5-2643 v2:28 nm
- Intel Xeon E5-4603 v2:22 nm
Processor threads
- Intel Xeon E5-2643 v2:12
- Intel Xeon E5-4603 v2:8
System bus rate
- Intel Xeon E5-2643 v2:8 GT/s
- Intel Xeon E5-4603 v2:6.4 GT/s
Processor cache
- Intel Xeon E5-2643 v2:25 MB
- Intel Xeon E5-4603 v2:10 MB
Thermal Design Power (TDP)
- Intel Xeon E5-2643 v2:130 W
- Intel Xeon E5-4603 v2:95 W

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2643 v2, Intel Xeon E5-4603 v2
54 specifications	A Lenovo Intel Xeon E5-2643 v2 View product	B Lenovo Intel Xeon E5-4603 v2 View product
Processor10 differ
Processor modelDiffers	E5-2643V2	E5-4603V2
Processor base frequencyDiffers	3.5 GHz	2.2 GHz
Processor coresDiffers	6	4
Processor lithographyDiffers	28 nm	22 nm
Processor threadsDiffers	12	8
System bus rateDiffers	8 GT/s	6.4 GT/s
Processor boost frequencyKnown for one	3.8 GHz	Unknown — not stated by the source
Processor cacheDiffers	25 MB	10 MB
Thermal Design Power (TDP)Differs	130 W	95 W
VID Voltage RangeDiffers	0.65 - 1.30 V	0.65 - 1.3 V
Memory bandwidth supported by processor (max)Differs	59.7 GB/s	42.6 GB/s
Processor codenameKnown for one	Unknown — not stated by the source	Ivy Bridge
Memory1 differ
Memory clock speeds supported by processorDiffers	800,1066,1333,1600,1866 MHz	800,1066,1333 MHz
Features2 differ
CPU configuration (max)Differs	2	4
ScalabilityDiffers	2S	4S
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
Processor special features1 differ
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® Turbo Boost TechnologyDiffers	2.0	No
Intel® vPro™ Platform EligibilityKnown for one	Yes	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	78 °C	77 °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.