Product comparison · 2 cpus

HP 639704-L21 processor vs Lenovo Intel Xeon E7-4820

Key differences

Processor family
- 639704-L21 processor:Intel® Xeon® E3 Family
- Intel Xeon E7-4820:Intel® Xeon® E7 Family
Processor model
- 639704-L21 processor:E3-1270
- Intel Xeon E7-4820:E7-4820
Processor base frequency
- 639704-L21 processor:3.4 GHz
- Intel Xeon E7-4820:2 GHz
Processor cores
- 639704-L21 processor:4
- Intel Xeon E7-4820:8
Processor socket
- 639704-L21 processor:LGA 1155 (Socket H2)
- Intel Xeon E7-4820:LGA 1567 (Socket LS)
Processor threads
- 639704-L21 processor:8
- Intel Xeon E7-4820:16
System bus rate
- 639704-L21 processor:5 GT/s
- Intel Xeon E7-4820:5.86 GT/s
Processor cache
- 639704-L21 processor:8 MB
- Intel Xeon E7-4820:18 MB

Differences highlightedShow differences only

Comparison of 639704-L21, Intel Xeon E7-4820
17 specifications	A HP 639704-L21 processor Model 639704-L21 View product	B Lenovo Intel Xeon E7-4820 View product
Processor10 differ
Processor familyDiffers	Intel® Xeon® E3 Family	Intel® Xeon® E7 Family
Processor modelDiffers	E3-1270	E7-4820
Processor base frequencyDiffers	3.4 GHz	2 GHz
Processor coresDiffers	4	8
Processor socketDiffers	LGA 1155 (Socket H2)	LGA 1567 (Socket LS)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	16
System bus rateDiffers	5 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.266 GHz
Processor cacheDiffers	8 MB	18 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	80 W	105 W
CPU multiplier (bus/core ratio)Differs	34	15
Featuresidentical
Market segment	Server	Server
Operational conditionsidentical
Maximum operating temperatureKnown for one	Unknown — not stated by the source	64 °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.