Product comparison · 2 cpus

Fujitsu Intel Xeon E5-2403 vs NEC Intel Xeon E5-2643

Key differences

Processor model
- Intel Xeon E5-2403:E5-2403
- Intel Xeon E5-2643:E5-2643
Processor base frequency
- Intel Xeon E5-2403:1.8 GHz
- Intel Xeon E5-2643:3.3 GHz
Processor socket
- Intel Xeon E5-2403:LGA 1356 (Socket B2)
- Intel Xeon E5-2643:LGA 2011 (Socket R)
Processor threads
- Intel Xeon E5-2403:4
- Intel Xeon E5-2643:8
System bus rate
- Intel Xeon E5-2403:6.4 GT/s
- Intel Xeon E5-2643:8 GT/s
Thermal Design Power (TDP)
- Intel Xeon E5-2403:80 W
- Intel Xeon E5-2643:130 W
Number of QPI links
- Intel Xeon E5-2403:1
- Intel Xeon E5-2643:2
Memory bandwidth supported by processor (max)
- Intel Xeon E5-2403:25 GB/s
- Intel Xeon E5-2643:51.2 GB/s

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2403, Intel Xeon E5-2643
48 specifications	A Fujitsu Intel Xeon E5-2403 View product	B NEC Intel Xeon E5-2643 View product
Processor8 differ
Processor modelDiffers	E5-2403	E5-2643
Processor base frequencyDiffers	1.8 GHz	3.3 GHz
Processor socketDiffers	LGA 1356 (Socket B2)	LGA 2011 (Socket R)
Processor threadsDiffers	4	8
System bus rateDiffers	6.4 GT/s	8 GT/s
Processor cacheKnown for one	10 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L3	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	80 W	130 W
Compatible chipsetsKnown for one	Intel® C602, Intel® C602J, Intel® C604, Intel® C606, Intel C608	Unknown — not stated by the source
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	25 GB/s	51.2 GB/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.5 GHz
Memory3 differ
Maximum internal memory supported by processorDiffers	375 GB	750 GB
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333,1600 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
Features1 differ
ScalabilityDiffers	2S	S2S
Processor special featuresidentical
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	2.0
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	73 °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.