Product comparison · 2 cpus

HP Intel Xeon E6540 vs NEC Intel Xeon E5620

16specifications compared
11differ
5identical
14known for one product only

Key differences

Processor family
- Intel Xeon E6540:Intel® Xeon® 6000 Sequence
- Intel Xeon E5620:Intel® Xeon® 5000 Sequence
Processor model
- Intel Xeon E6540:E6540
- Intel Xeon E5620:E5620
Processor base frequency
- Intel Xeon E6540:2 GHz
- Intel Xeon E5620:2.4 GHz
Processor cores
- Intel Xeon E6540:6
- Intel Xeon E5620:4
Processor socket
- Intel Xeon E6540:LGA 1567 (Socket LS)
- Intel Xeon E5620:Socket B (LGA 1366)
Processor lithography
- Intel Xeon E6540:45 nm
- Intel Xeon E5620:32 nm
Processor threads
- Intel Xeon E6540:12
- Intel Xeon E5620:8
System bus rate
- Intel Xeon E6540:6.4 GT/s
- Intel Xeon E5620:5.86 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E6540, Intel Xeon E5620
30 specifications	A HP Intel Xeon E6540 View product	B NEC Intel Xeon E5620 View product
Processor11 differ
Processor familyDiffers	Intel® Xeon® 6000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E6540	E5620
Processor base frequencyDiffers	2 GHz	2.4 GHz
Processor coresDiffers	6	4
Processor socketDiffers	LGA 1567 (Socket LS)	Socket B (LGA 1366)
Processor lithographyDiffers	45 nm	32 nm
Processor threadsDiffers	12	8
System bus rateDiffers	6.4 GT/s	5.86 GT/s
Processor boost frequencyDiffers	2.266 GHz	2.66 GHz
Processor cacheDiffers	18 MB	12 MB
Thermal Design Power (TDP)Differs	105 W	80 W
VID Voltage RangeKnown for one	Unknown — not stated by the source	0.750 - 1.350 V
SteppingKnown for one	Unknown — not stated by the source	B1
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	18
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	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
Memoryidentical
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	288 GB
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,1066 MHz
Memory channelsKnown for one	Unknown — not stated by the source	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
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
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.

More cpu comparisons

All cpu comparisons