Product comparison · 2 cpus

HP E5645 processor vs NEC Intel Xeon E5620

22specifications compared
6differ
16identical
10known for one product only

Key differences

Processor model
- E5645 processor:E5645
- Intel Xeon E5620:E5620
Processor cores
- E5645 processor:6
- Intel Xeon E5620:4
Processor threads
- E5645 processor:12
- Intel Xeon E5620:8
Processor boost frequency
- E5645 processor:2.67 GHz
- Intel Xeon E5620:2.66 GHz
Memory bandwidth supported by processor (max)
- E5645 processor:32 GB/s
- Intel Xeon E5620:25.6 GB/s
Memory clock speeds supported by processor
- E5645 processor:800,1066,1333 MHz
- Intel Xeon E5620:800,1066 MHz

Side by side

Differences highlightedShow differences only

Comparison of E5645, Intel Xeon E5620
32 specifications	A HP E5645 processor Model E5645 View product	B NEC Intel Xeon E5620 View product
Processor5 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5645	E5620
Processor base frequency	2.4 GHz	2.4 GHz
Processor coresDiffers	6	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Package type	Tray	Tray
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	12	8
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	2.67 GHz	2.66 GHz
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)	80 W	80 W
VID Voltage Range	0.750 - 1.350 V	0.750 - 1.350 V
SteppingKnown for one	Unknown — not stated by the source	B1
CPU multiplier (bus/core ratio)	18	18
Memory bandwidth supported by processor (max)Differs	32 GB/s	25.6 GB/s
Processor system typeKnown for one	Unknown — not stated by the source	DP
Processor codeKnown for one	Unknown — not stated by the source	SLBV4
Memory1 differ
Maximum internal memory supported by processor	288 GB	288 GB
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066 MHz
Memory channels	Triple-channel	Triple-channel
ECCKnown for one	Unknown — not stated by the source	Yes
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	No
Featuresidentical
Market segment	Server	Server
Operational conditionsidentical
Maximum operating temperatureKnown for one	Unknown — not stated by the source	77.6 °C
Weight & dimensionsidentical
Package dimensions (WxDxH)Known for one	Unknown — not stated by the source	42.5 x 425.5 x 45 mm
WidthKnown for one	45 mm	Unknown — not stated by the source
HeightKnown for one	42.5 mm	Unknown — not stated by the source
Other featuresidentical
On-board memory controllerKnown for one	Unknown — not stated by the source	Yes

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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