Product comparison · 2 cpus

HP Intel Xeon E5440, Ref vs HP Intel Xeon X7550

21specifications compared
13differ
8identical
16known for one product only

Key differences

The HP Intel Xeon E5440, Ref has 0.83 GHz more processor base frequency than the HP Intel Xeon X7550 (2.83 GHz vs 2 GHz). The HP Intel Xeon X7550 has 4 more processor cores than the HP Intel Xeon E5440, Ref (8 vs 4). The HP Intel Xeon X7550 has 12 more processor threads than the HP Intel Xeon E5440, Ref (16 vs 4). Only the HP Intel Xeon X7550 has Intel® Hyper Threading Technology (Intel® HT Technology). Only the HP Intel Xeon X7550 has Intel® Turbo Boost Technology.

Processor family
- Intel Xeon E5440, Ref:Intel® Xeon® 5000 Sequence
- Intel Xeon X7550:Intel® Xeon® 7000 Sequence
Processor model
- Intel Xeon E5440, Ref:E5440
- Intel Xeon X7550:X7550
Processor base frequency
- Intel Xeon E5440, Ref:2.83 GHz
- Intel Xeon X7550:2 GHz
Processor cores
- Intel Xeon E5440, Ref:4
- Intel Xeon X7550:8
Processor socket
- Intel Xeon E5440, Ref:LGA 771 (Socket J)
- Intel Xeon X7550:LGA 1567 (Socket LS)
Processor threads
- Intel Xeon E5440, Ref:4
- Intel Xeon X7550:16
Processor cache
- Intel Xeon E5440, Ref:12 MB
- Intel Xeon X7550:18 MB
Processor cache type
- Intel Xeon E5440, Ref:L2
- Intel Xeon X7550:L3

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5440, Ref, Intel Xeon X7550
37 specifications	A HP Intel Xeon E5440, Ref View product	B HP Intel Xeon X7550 View product
Processor10 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® 7000 Sequence
Processor modelDiffers	E5440	X7550
Processor base frequencyDiffers	2.83 GHz	2 GHz
Processor coresDiffers	4	8
Processor socketDiffers	LGA 771 (Socket J)	LGA 1567 (Socket LS)
Processor threadsDiffers	4	16
Processor operating modesKnown for one	32-bit, 64-bit	Unknown — not stated by the source
Processor cacheDiffers	12 MB	18 MB
Processor cache typeDiffers	L2	L3
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	80 W	130 W
VID Voltage RangeDiffers	0.850 - 1.350 V	0.675 - 1.35 V
FSB ParityKnown for one	Yes	Unknown — not stated by the source
System bus rateKnown for one	Unknown — not stated by the source	6.4 GT/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.4 GHz
Bus typeKnown for one	Unknown — not stated by the source	QPI
Featuresidentical
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
Number of Graphics & IMC Die TransistorsKnown for one	820 M	Unknown — not stated by the source
Graphics & IMC Die SizeKnown for one	214 mm²	Unknown — not stated by the source
Embedded options availableKnown for one	Unknown — not stated by the source	No
Processor special features2 differ
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Turbo Boost TechnologyDiffers	No	Yes
Intel Demand Based SwitchingKnown for one	Yes	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	67 °C	69 °C
Other featuresidentical
CompatibilityKnown for one	Unknown — not stated by the source	DL580 G7
Memoryidentical
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,978,1066,1333 MHz

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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