Product comparison · 2 cpus

Fujitsu Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB vs Lenovo Intel Xeon E5-2643

39specifications compared
14differ
25identical
12known for one product only

Key differences

Processor model
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:E5-2420
- Intel Xeon E5-2643:E5-2643
Processor base frequency
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:1.9 GHz
- Intel Xeon E5-2643:3.3 GHz
Processor cores
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:6
- Intel Xeon E5-2643:4
Processor socket
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:LGA 1356 (Socket B2)
- Intel Xeon E5-2643:LGA 2011 (Socket R)
Processor threads
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:12
- Intel Xeon E5-2643:8
System bus rate
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:7.2 GT/s
- Intel Xeon E5-2643:8 GT/s
Processor boost frequency
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:2.4 GHz
- Intel Xeon E5-2643:3.5 GHz
Processor cache
- Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB:15 MB
- Intel Xeon E5-2643:10 MB

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB, Intel Xeon E5-2643
51 specifications	A Fujitsu Intel Xeon E5-2420 6C/12T 1.90 GHz 15 MB View product	B Lenovo Intel Xeon E5-2643 View product
Processor11 differ
Processor modelDiffers	E5-2420	E5-2643
Processor base frequencyDiffers	1.9 GHz	3.3 GHz
Processor coresDiffers	6	4
Processor socketDiffers	LGA 1356 (Socket B2)	LGA 2011 (Socket R)
Processor threadsDiffers	12	8
System bus rateDiffers	7.2 GT/s	8 GT/s
Processor boost frequencyDiffers	2.4 GHz	3.5 GHz
Processor cacheDiffers	15 MB	10 MB
Thermal Design Power (TDP)Differs	95 W	130 W
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	32 GB/s	51.2 GB/s
SteppingKnown for one	Unknown — not stated by the source	M1
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	35
Memory3 differ
Maximum internal memory supported by processorDiffers	375 GB	750 GB
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066,1333,1600 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
Featuresidentical
Maximum number of PCI Express lanesKnown for one	24	Unknown — not stated by the source
CPU configuration (max)Known for one	2	Unknown — not stated by the source
ScalabilityKnown for one	S2S	Unknown — not stated by the source
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	32 nm
Processor special featuresidentical
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
CompatibilityKnown for one	PRIMERGY BX920 S3	Unknown — not stated by the source
Height (imperial)Known for one	Unknown — not stated by the source	5.59 mm (0.22")
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	73 °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.

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