Product comparison · 2 cpus

HP E5645 processor vs Lenovo Intel Xeon E7-4870

Key differences

Processor family
- E5645 processor:Intel® Xeon® 5000 Sequence
- Intel Xeon E7-4870:Intel® Xeon® E7 Family
Processor model
- E5645 processor:E5645
- Intel Xeon E7-4870:E7-4870
Processor cores
- E5645 processor:6
- Intel Xeon E7-4870:10
Processor socket
- E5645 processor:Socket B (LGA 1366)
- Intel Xeon E7-4870:LGA 1567 (Socket LS)
Processor threads
- E5645 processor:12
- Intel Xeon E7-4870:20
System bus rate
- E5645 processor:5.86 GT/s
- Intel Xeon E7-4870:6.4 GT/s
Processor boost frequency
- E5645 processor:2.67 GHz
- Intel Xeon E7-4870:2.8 GHz
Processor cache
- E5645 processor:12 MB
- Intel Xeon E7-4870:30 MB

Differences highlightedShow differences only

Comparison of E5645, Intel Xeon E7-4870
27 specifications	A HP E5645 processor Model E5645 View product	B Lenovo Intel Xeon E7-4870 View product
Processor9 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® E7 Family
Processor modelDiffers	E5645	E7-4870
Processor coresDiffers	6	10
Processor socketDiffers	Socket B (LGA 1366)	LGA 1567 (Socket LS)
Package typeKnown for one	Tray	Unknown — not stated by the source
Processor threadsDiffers	12	20
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor boost frequencyDiffers	2.67 GHz	2.8 GHz
Processor cacheDiffers	12 MB	30 MB
Thermal Design Power (TDP)Differs	80 W	130 W
VID Voltage RangeKnown for one	0.750 - 1.350 V	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	32 GB/s	Unknown — not stated by the source
SteppingKnown for one	Unknown — not stated by the source	A2
Processor codeKnown for one	Unknown — not stated by the source	SLC3T
Memoryidentical
Maximum internal memory supported by processorKnown for one	288 GB	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	800,1066,1333 MHz	Unknown — not stated by the source
Memory channelsKnown for one	Triple-channel	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	45 mm	Unknown — not stated by the source
HeightKnown for one	42.5 mm	Unknown — not stated by the source
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.