Product comparison · 2 cpus

Fujitsu Intel Xeon W3580 vs NEC Xeon E5-2650 v2 8C 2.6GHz

40specifications compared
24differ
16identical
18known for one product only

Key differences

Processor family
- Intel Xeon W3580:Intel® Xeon®
- Xeon E5-2650 v2 8C 2.6GHz:Intel® Xeon® E5 V2 Family
Processor model
- Intel Xeon W3580:W3580
- Xeon E5-2650 v2 8C 2.6GHz:E5-2650V2
Processor base frequency
- Intel Xeon W3580:3.33 GHz
- Xeon E5-2650 v2 8C 2.6GHz:2.6 GHz
Processor cores
- Intel Xeon W3580:4
- Xeon E5-2650 v2 8C 2.6GHz:8
Processor socket
- Intel Xeon W3580:LGA 1366 (Socket B)
- Xeon E5-2650 v2 8C 2.6GHz:LGA 2011 (Socket R)
Processor lithography
- Intel Xeon W3580:45 nm
- Xeon E5-2650 v2 8C 2.6GHz:22 nm
Processor threads
- Intel Xeon W3580:8
- Xeon E5-2650 v2 8C 2.6GHz:16
System bus rate
- Intel Xeon W3580:6.4 GT/s
- Xeon E5-2650 v2 8C 2.6GHz:8 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon W3580, Xeon E5-2650 v2 8C 2.6GHz
58 specifications	A Fujitsu Intel Xeon W3580 View product	B NEC Xeon E5-2650 v2 8C 2.6GHz View product
Processor15 differ
Processor familyDiffers	Intel® Xeon®	Intel® Xeon® E5 V2 Family
Processor modelDiffers	W3580	E5-2650V2
Processor base frequencyDiffers	3.33 GHz	2.6 GHz
Processor coresDiffers	4	8
Processor socketDiffers	LGA 1366 (Socket B)	LGA 2011 (Socket R)
Processor lithographyDiffers	45 nm	22 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	16
System bus rateDiffers	6.4 GT/s	8 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	3.6 GHz	3.4 GHz
Processor cacheDiffers	8 MB	20 MB
Processor cache typeDiffers	Smart Cache	L3
Thermal Design Power (TDP)Differs	130 W	95 W
VID Voltage RangeDiffers	0.8 - 1.375 V	0.6 - 1.30 V
SteppingKnown for one	D0	Unknown — not stated by the source
Bus type	QPI	QPI
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	32 GB/s	59.7 GB/s
Memory3 differ
Maximum internal memory supported by processorDiffers	24 GB	768 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066,1333,1600,1866 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
ECC	Yes	Yes
Graphicsidentical
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
On-board graphics card	No	No
On-board graphics card modelKnown for one	Not available	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
Features2 differ
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring TechnologiesDiffers	No	Yes
Market segment	Server	Server
Number of Processing Die TransistorsKnown for one	731 M	Unknown — not stated by the source
Processing Die sizeKnown for one	263 mm²	Unknown — not stated by the source
Supported instruction setsDiffers	SSE4.2	AVX
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Physical Address Extension (PAE)	Yes	Yes
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	40
PCI Express slots versionKnown for one	Unknown — not stated by the source	3.0
ScalabilityKnown for one	Unknown — not stated by the source	2S
Processor special features3 differ
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	1.0	Yes
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Demand Based Switching	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Intel® Secure KeyKnown for one	Unknown — not stated by the source	Yes
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	67.9 °C	75 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	Unknown — not stated by the source	VT-d, VT-x

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