Product comparison · 2 cpus

HP 645836-L21 processor vs Lenovo Intel Xeon E7-4870

Key differences

Processor family
- 645836-L21 processor:Intel® Xeon® E3 Family
- Intel Xeon E7-4870:Intel® Xeon® E7 Family
Processor model
- 645836-L21 processor:E3-1280
- Intel Xeon E7-4870:E7-4870
Processor base frequency
- 645836-L21 processor:3.5 GHz
- Intel Xeon E7-4870:2.4 GHz
Processor cores
- 645836-L21 processor:4
- Intel Xeon E7-4870:10
Processor socket
- 645836-L21 processor:LGA 1155 (Socket H2)
- Intel Xeon E7-4870:LGA 1567 (Socket LS)
Processor threads
- 645836-L21 processor:8
- Intel Xeon E7-4870:20
System bus rate
- 645836-L21 processor:5 GT/s
- Intel Xeon E7-4870:6.4 GT/s
Processor cache
- 645836-L21 processor:8 MB
- Intel Xeon E7-4870:30 MB

Differences highlightedShow differences only

Comparison of 645836-L21, Intel Xeon E7-4870
19 specifications	A HP 645836-L21 processor Model 645836-L21 View product	B Lenovo Intel Xeon E7-4870 View product
Processor9 differ
Processor familyDiffers	Intel® Xeon® E3 Family	Intel® Xeon® E7 Family
Processor modelDiffers	E3-1280	E7-4870
Processor base frequencyDiffers	3.5 GHz	2.4 GHz
Processor coresDiffers	4	10
Processor socketDiffers	LGA 1155 (Socket H2)	LGA 1567 (Socket LS)
Processor threadsDiffers	8	20
System bus rateDiffers	5 GT/s	6.4 GT/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.8 GHz
Processor cacheDiffers	8 MB	30 MB
Thermal Design Power (TDP)Differs	95 W	130 W
SteppingKnown for one	Unknown — not stated by the source	A2
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	18
Processor codeKnown for one	Unknown — not stated by the source	SLC3T
Operational conditionsidentical
Maximum operating temperatureKnown for one	Unknown — not stated by the source	69 °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.