Product comparison · 2 cpus

Dell Intel Xeon E5645 vs Fujitsu Intel Xeon L5420

27specifications compared
16differ
11identical
23known for one product only

Key differences

Processor family
- Intel Xeon E5645:Intel® Xeon® 5000 Sequence
- Intel Xeon L5420:Intel® Xeon®
Processor model
- Intel Xeon E5645:E5645
- Intel Xeon L5420:L5420
Processor base frequency
- Intel Xeon E5645:2.4 GHz
- Intel Xeon L5420:2.5 GHz
Processor cores
- Intel Xeon E5645:6
- Intel Xeon L5420:4
Processor socket
- Intel Xeon E5645:Socket B (LGA 1366)
- Intel Xeon L5420:LGA 771 (Socket J)
Processor lithography
- Intel Xeon E5645:32 nm
- Intel Xeon L5420:45 nm
Processor threads
- Intel Xeon E5645:12
- Intel Xeon L5420:4
Processor cache type
- Intel Xeon E5645:L3
- Intel Xeon L5420:L2

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5645, Intel Xeon L5420
50 specifications	A Dell Intel Xeon E5645 View product	B Fujitsu Intel Xeon L5420 View product
Processor11 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon®
Processor modelDiffers	E5645	L5420
Processor base frequencyDiffers	2.4 GHz	2.5 GHz
Processor coresDiffers	6	4
Processor socketDiffers	Socket B (LGA 1366)	LGA 771 (Socket J)
Processor lithographyDiffers	32 nm	45 nm
Processor threadsDiffers	12	4
System bus rateKnown for one	5.86 GT/s	Unknown — not stated by the source
Processor boost frequencyKnown for one	2.67 GHz	Unknown — not stated by the source
Processor cache typeDiffers	L3	L2
Thermal Design Power (TDP)Differs	80 W	50 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.85 - 1.35 V
SteppingDiffers	B1	E0
Bus typeKnown for one	QPI	Unknown — not stated by the source
Number of QPI linksKnown for one	2	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	32 GB/s	Unknown — not stated by the source
FSB ParityKnown for one	Unknown — not stated by the source	Yes
Memoryidentical
Maximum internal memory supported by processorKnown for one	288 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3-SDRAM	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
ECCKnown for one	Yes	Unknown — not stated by the source
Features1 differ
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Embedded options availableDiffers	Yes	No
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	Yes
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	820 M
Processing Die sizeKnown for one	Unknown — not stated by the source	214 mm²
Number of Graphics & IMC Die TransistorsKnown for one	Unknown — not stated by the source	820 M
Graphics & IMC Die SizeKnown for one	Unknown — not stated by the source	214 mm²
Processor special features3 differ
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Turbo Boost TechnologyDiffers	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	76.2 °C	57 °C
Weight & dimensionsidentical
Processor package sizeKnown for one	42.5 mm	Unknown — not stated by the source
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	VT-d, VT-x	Unknown — not stated by the source

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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